Ina Chaika listing design for marketplaces Email InaEmail

Work · Concept listing · 2026

Kelda 37

Listing images, Premium A+ Content and Brand Story for a magnetic power bank: 10,000 mAh at 3.7 V, which makes 37 Wh, Qi2 25W wireless charging, 30 W USB-C in and out, and a fold-out stand. The model is named for its energy: 37 is the watt-hours, the number airlines check. Kelda is Old Norse for a spring: you can see to the bottom of one, so you always know how much is in it. A fictional brand, built as a complete US listing with EU notes to show the same method in a fifth category: on every image a buyer's question, the answer, and one number with the condition it holds under. The scenes follow one autumn day in a warm old city, 07:05 to 22:10: paper, plaster, sandstone, wool.

Role
Art direction, listing images, Premium A+ Content, Brand Story, packaging and label graphics, listing copy
Deliverables
8 gallery images at 2000 x 2000, one number per image with its condition · Premium A+ Content, 7 modules, 12 image files · Brand Story, 3 files · graphics for the paper sleeve, the label under the stand and The Fine Print card · listing copy in English · notes for Germany and France
Marketplaces
Amazon US, with notes for amazon.de and amazon.fr: the manufacturer and the EU responsible person with their addresses under the GPSR, warnings in German and French, WEEE and battery registration in Germany, a UIN in France, a Declaration of Conformity under RED, RoHS and the Battery Regulation 2023/1542 (CE is a self-declaration, never a certificate), metric units and °C only · also Walmart, own store on Shopify and TikTok Shop
Client
Concept project, fictional brand
Checked before export
Title 73 of 75 characters · item highlights 120 of 125 · longest bullet 254 of 500 · description 1,970 of 2,000 · search terms 208 of 249 bytes · main image fill 90 percent, shadow excluded, against an 85 percent minimum · 32 automated checks passed · rules as of October 2026

Concept project. Fictional brand, scenes visualized with AI.

Case study Amazon Walmart Own store TikTok Shop

Case study: how the project reads on Behance. Amazon, Walmart, own store and TikTok Shop: the same product, built to each channel's rules.

Case study

Tap any panel to zoom

Cover

Kelda 37: a magnetic power bank named for its energy, 37 Wh. Power, in plain numbers: built as a complete Amazon listing, from the main image to the Brand Story, where every number has its condition beside it. The case opens on the A+ 1 photograph: a man sketching at a cafe counter, his phone on the stand beside him.

01 · The brief

Across reviews of 13 magnetic power banks on Amazon US, shoppers talk most about charging speed, capacity and size, and speed and heat are mixed or negative on most of them. So: eight buyer questions in order, and the gallery slot that answers each. The category rules: watt-hours printed on the product, Qi2 named only next to its certificate number, iPhone models named only to say what fits, no flying scenes and no approval badges. The insight: competitors hide their conditions in footnotes too small to read on a phone, so Kelda prints the fine print large, on the label under the stand.

02 · One product

The same Clay pack, with the same marigold stand and the same label, from a studio shot on white to a kitchen at 07:05 and a bedside table at 22:10. Across the gallery, the A+ and the Brand Story the shopper meets one object: 8 gallery images, 7 Premium A+ modules, 32 of 32 automated checks passed.

03 · The brand

Kelda (KEL-da) is Old Norse for a spring: you can see to the bottom, so you always know how much is in it. The brand makes the same promise, a reserve of power with its depth printed on the outside. The tagline is Power, in plain numbers; the rule is to round down and keep the condition beside the number; the models are named for their watt-hours: 18.5, 37 and 74. The stand is the brand: closed, the pack is one calm terracotta slab; open, a marigold plate shows a label with every number on it. The same plate, at the same 62:40, holds the one number of every image after the main one. Newsreader, a serif, for the answer, Public Sans for reading, DM Mono for the fine print and the units, and ten colors, each with one job.

04 · The object

A calm slab with a bright inside: 105 x 70 x 15.2 mm, 205 g, and a stand that opens to 65 degrees, right onto the label. Four colors, Clay, Moss, Paper and Soot, with the same marigold plate inside. The pack is a sleeve of uncoated oatmeal board with two words on the front: kelda at the top and 37 Wh on a marigold plate where the stand sits on the product. In the box: the power bank, a braided USB-C cable, a wool-felt sleeve and The Fine Print card with every number and its test condition.

06 · Premium A+

Seven modules at 1464 px: a man at a cafe counter under Power, in plain numbers; everything in the box, The Fine Print card included; four colors with one marigold inside; one pack, one day; the line compared; eight questions; and the full spec table, set as live text rather than an image. The two full-width modules get 600 by 450 mobile variants: most shoppers read the page on a phone, where each number stands on its own.

07 · The line

The comparison chart needs sister products, so the line was designed too: Kelda 18.5, 37 and 74, one object at three sizes, drawn to one scale. The number in each name is its energy in watt-hours, and you pick by where it lives: a jeans pocket, your phone or your bag. About 0.7, 1.5 and 3.0 iPhone 17 charges; 9.6, 15.2 and 26.5 mm thick; 122, 205 and 365 g.

08 · Brand Story

A clear spring in beech woods behind a logo card with the story of the name, a card with the line at one scale and the 37 Wh plate, and three questions: why 37, why marigold inside, and why round down. The last answer is the brand in one line: so the number you plan with is the one you get.

09 · The copy

What the listing says, and what it refuses to say. It says: Your phone sets the speed. One and a half charges, rounded down. Warm is normal. Hot is not. It does not say TSA approved or won't overheat, never puts 10,000 mAh in a headline without its watt-hours, draws no race bars against other power banks, and shows no real handset in any frame, only one generic phone with no logo. The copy is measured against Amazon's limits: title 73 of 75, description 1,970 of 2,000, search terms 208 of 249 bytes.

End

What a client receives: the gallery, the A+ files with mobile variants, the Brand Story files, the packaging and label graphics and the texts, named and sized for upload.

Now scroll it the way a shopper would.

The same files and texts, in a product page you can read on your own phone.

Switch to On Amazon

On Amazon

Simulation. A generic store layout built in HTML, no store's interface. Buttons do nothing.

Cell Phones & Accessories › Accessories › Chargers & Power Adapters › Portable Power Banks

Kelda 37 (37 Wh) magnetic power bank in Clay on white, stand slightly open to the marigold inside
Phone standing in portrait on the open Kelda 37 stand on a paper-covered kitchen table at 7 am
Woman on a waiting-room bench holding a phone, the Kelda 37 pack on its back
Phone screen down on a sandstone cafe table with the Kelda 37 pack on its back, beside a cup
Hand holding the Kelda 37 pack, a phone hanging beside it on the magnets alone
Drawing to scale of Kelda 37 on the back of a generic phone, and in section over a magnetic case
Close-up of the Kelda 37 stand open on the marigold inlay, the printed label reads 37 Wh
Two phones on sandstone, one with the Kelda 37 pack, a white cable from the pack to the other
Main image · fill 90 percent, shadow excluded · minimum 85

Brand: Kelda

Kelda 37 Wh Magnetic Power Bank 10,000 mAh, Qi2 25W, Stand, for iPhone 17

Title · 73 of 75 characters

37 Wh, under the 100 Wh carry-on limit; works with iPhone 12 and later except 16e; 30 W USB-C in and out; fold-out stand

Item highlights · 120 of 125 characters

$7499 (1 power bank)

In stock

Ships from and sold by Kelda

Brand
Kelda
Lithium Battery Energy Content
37 Watt Hours
Battery Capacity
10000 Milliamp Hours
Output Wattage
30 Watts
Connector Type
USB Type C
Special Feature
Fold-out stand, pass-through charging, percent readout
Color
Clay

About this item

  • FIND YOUR SPEED: Qi2 25W: up to 25 W on iPhone 17, 17 Pro, 17 Pro Max, 16 Plus, 16 Pro Max, 18 Pro, 18 Pro Max; up to 22.5 W on 16, 16 Pro; up to 20 W on Air; up to 15 W on 17e and 12 to 15; up to 12 W on 12 mini, 13 mini. Your phone sets the speed
  • THE NAME IS THE ENERGY: Kelda 37 holds 37 Wh: 10,000 mAh at 3.7 V; rated capacity 6,000 mAh at 5 V 3 A. About 1.5 charges on iPhone 17, 1.3 on 17 Pro, 1.1 on 17 Pro Max (wireless, 0 to 100%, phone idle, 25 C, our test, rounded down)
  • WARM IS NORMAL, HOT IS NOT: Surface typically 38 to 41 C (100 to 106 F) at 25 W in a 25 C room. Its internal sensor lowers power above 43 C, pauses at 45 C. Temperature monitoring, over-charge, over-current and short-circuit protection; tested to UL 2056
  • HOLDS ON, STANDS UP: About 1,100 g of straight pull on a bare phone, about 800 g through a 2 mm magnetic case (our test). On iPhone 16e and phones without magnets, add a magnetic case. Stand opens to 65 degrees, portrait. 15.2 mm thick, 205 g
  • TWO PHONES, ONE PACK: 30 W shared, 15 W wireless + 15 W USB-C. Plugged in, it charges your phone and itself. With nothing attached, a 30 W USB-C PD adapter (not included) refills it from 0% in about 2 h 10 min, longer in pass-through. 2-year warranty
Bullets · 5 of 5 · longest 254 of 500 characters
Backend search terms · 208 of 249 bytes Automated checks · 32 of 32 passed before export · rules as of October 2026 For your product, the same table comes with the files.

From the brand

You can see to the bottom of a spring.

A kelda is a spring you can see to the bottom of, so you always know how much is in it. We build power banks the same way. The energy is the name: Kelda 37 holds 37 Wh. Every number has its condition next to it, and every charge count is rounded down. Warm, matte materials, because the pack lives in your hand all day. Marigold inside, because that is where the numbers are.

Kelda 18.5, 37 and 74 power banks in Clay at true relative scale on oatmeal paper

Why is it called 37?

It's the energy in watt-hours: 10,000 mAh x 3.7 V = 37 Wh, the number airlines check.

Why marigold inside?

That's where the numbers are. Open the stand and the label is right there.

Why round down?

So the number you plan with is the one you get.

From the manufacturer

Module 1 · Premium Full Image

Man sketching at a cafe counter, his phone on the open Kelda 37 standMan sketching at a cafe counter, his phone on the open Kelda 37 stand

Kelda 37: the 37 is its watt-hours.

Kelda 37 holds 10,000 mAh at 3.7 V (37 Wh); rated capacity 6,000 mAh at 5 V 3 A. It snaps onto the back of your phone, charges with Qi2 25W, up to 25 W on supported iPhone models, and its plate opens into a stand at 65 degrees. Every number carries its condition; every charge count is rounded down.

Module 2 · Premium Single Image & Text

Open Kelda 37 box from above: pack in its pulp tray, coiled cable, felt sleeve, The Fine Print card

Everything in the box, the fine print included.

In the box: Kelda 37, a 60 cm USB-C to USB-C braided cable, a wool-felt sleeve and The Fine Print card, with every number and its test condition. No adapter: any 30 W USB-C PD adapter works. Plugged in, it charges your phone and itself. Keeps 80% of its capacity after 800 cycles (our test). Paper sleeve, molded-pulp tray.

  • Kelda 37 power bank
  • 60 cm (2 ft) USB-C to USB-C braided cable, paper white
  • Wool-felt sleeve, sand
  • The Fine Print card: every number, its test condition and a link to the full test sheet

Module 3 · Premium Four Images & Text

Four colors. The same marigold inside.

Kelda 37 in Clay, stand open to the marigold inside, on oatmeal wool

Clay

This item: deep terracotta with a mineral-matte finish, shown on oatmeal wool. The color in every photo of this listing.

Kelda 37 in Moss, stand open to the marigold inside, on unglazed tile

Moss

Deep olive with the same mineral-matte finish, shown on unglazed tile. Sold as its own item.

Kelda 37 in Paper, stand open to the marigold inside, on cork

Paper

Warm off-white with the same mineral-matte finish, shown on cork. Sold as its own item.

Kelda 37 in Soot, stand open to the marigold inside, on lime plaster

Soot

Warm charcoal with the same mineral-matte finish, shown on lime plaster. Sold as its own item.

Module 4 · Premium Full Image

Five moments of one Kelda 37 day, 07:05 to 22:10, with the pack's own percentFive moments of one Kelda 37 day, 07:05 to 22:10, with the pack's own percent

One pack, one day.

07:05, 100%, off the charger. 13:10, 69% after topping up the phone on the way in. 18:20, 52%, two phones at once. 19:30, 38%, into the tote. 22:10, still 38%, back on the charger. An example day on iPhone 17 Pro, wireless, 25 °C; the percent is the pack's own readout.

Module 5 · Premium Comparison Chart

Pick by the number: 18.5, 37 or 74.

One object at three sizes, drawn to one scale: the same plate, one USB-C port, the same readout and four colors. The number in each name is its energy in watt-hours. Pick by where it lives: a jeans pocket, your phone or your bag.

Kelda 18.5Kelda 18.5Kelda 37Kelda 37Kelda 74Kelda 74
Energy (the name)18.5 Wh37 Wh74 Wh
Cell5,000 mAh at 3.7 V10,000 mAh at 3.7 V20,000 mAh at 3.7 V
Rated at 5 V 3 A3,000 mAh6,000 mAh12,000 mAh
Charges on iPhone 17 (wireless, rounded down)0.71.53.0
WirelessQi2, up to 15 WQi2 25WQi2 25W
USB-C in and out20 W30 W45 W
Pass-throughYesYesYes
StandOpens to 65 degreesOpens to 65 degreesOpens to 65 degrees
ReadoutPercentPercentPercent
Thickness9.6 mm15.2 mm26.5 mm
Weight122 g205 g365 g
Lives inA jeans pocketOn your phoneYour bag
Carry-onUnder 100 WhUnder 100 WhUnder 100 Wh

Swipe to compare

Module 6 · Premium Q&A

The fine print, answered.

It says 10,000 mAh. Why about 1.5 charges?

10,000 mAh at 3.7 V is 37 Wh in the cell. Turning it into phone power warms the converter, the coil and the phone, so about 22 Wh reaches an iPhone 17 battery: about 1.5 charges, 1.3 of a 17 Pro, 1.1 of a 17 Pro Max, 1.7 of an iPhone Air (wireless, phone idle, 25 °C, our test, rounded down).

Which iPhone gets 25 W?

Up to 25 W on iPhone 17, 17 Pro, 17 Pro Max, 16 Plus, 16 Pro Max, 18 Pro and 18 Pro Max; up to 22.5 W on iPhone 16 and 16 Pro; up to 20 W on iPhone Air; up to 15 W on iPhone 17e and iPhone 12 to 15, and up to 12 W on iPhone 12 mini and 13 mini. These are peak speeds. On iPhone 17 Pro: 0 to 50% in about 32 min (wireless, phone idle, 25 °C, our test). On iPhone 16e, which has no built-in magnets, use a magnetic case (sold separately).

Why does my iPhone stop at 80%?

Your iPhone holds its battery at 80% when the phone is warm or when optimized charging is on. That is the phone protecting its own battery, not the pack.

It feels warm. Is that normal?

Yes: the surface is typically 38 to 41 °C (100 to 106 °F) at 25 W in a 25 °C room. Its internal sensor lowers power above 43 °C and pauses at 45 °C until it cools. Temperature monitoring with over-charge, over-current and short-circuit protection; tested to UL 2056.

Can I take it on a plane?

37 Wh, under the 100 Wh carry-on limit. Carry-on only: keep it with you, never in checked bags or the overhead bin. Hold the button 3 s to switch wireless off, and don't use or charge it on board. Check your airline.

Will it hold through my case?

Magnetic cases up to 2.5 mm: about 800 g of pull through 2 mm, about 1,100 g on a bare phone (straight pull, our test). Non-magnetic or thicker cases: add a magnetic ring (sold separately).

Can it charge two phones, or charge while plugged in?

Yes: 30 W shared, 15 W + 15 W, wireless and USB-C at once. On a 30 W USB-C PD adapter it charges your phone and itself (pass-through). With nothing attached, it refills from 0% in about 2 h 10 min; pass-through takes longer.

Does it work with Android phones?

Android phones with built-in magnets charge at their own wireless speed; phones without magnets need a magnetic case (sold separately).

Module 7 · Premium Technical Specifications

Every number, in one place.

Kelda 37
NameKelda 37: the 37 is its 37 Wh
ModelKD37 (Clay: KD37-CL)
CellLithium-ion polymer, 10,000 mAh at 3.7 V (37 Wh)
Rated capacity6,000 mAh at 5 V 3 A
WirelessQi2 25W magnetic: up to 25 W on iPhone 17, 17 Pro, 17 Pro Max, 16 Plus, 16 Pro Max, 18 Pro and 18 Pro Max; up to 22.5 W on iPhone 16 and 16 Pro; up to 20 W on iPhone Air; up to 15 W on iPhone 17e and iPhone 12 to 15, and up to 12 W on iPhone 12 mini and 13 mini
USB-C input5 V 3 A / 9 V 3 A / 15 V 2 A (30 W max)
USB-C output5 V 3 A / 9 V 3 A / 15 V 2 A (30 W max)
Total output30 W shared, 15 W + 15 W (wireless and USB-C)
Pass-throughYes, on a 30 W USB-C PD adapter
RechargeAbout 2 h 10 min from 0% with nothing attached, on a 30 W USB-C PD adapter; longer in pass-through
StandOpens 0 to 65 degrees and holds any angle; portrait
ReadoutPercent, in 1% steps
ButtonPress: show the level. Hold 3 s: wireless off or on
Magnet holdAbout 1,100 g bare, about 800 g through a 2 mm magnetic case (straight pull, our test)
CasesMagnetic cases up to 2.5 mm
Size105 x 70 x 15.2 mm (4.13 x 2.76 x 0.60 in), stand closed
Weight205 g (7.2 oz)
TemperatureSurface: 38 to 41 °C (100 to 106 °F) at 25 W in a 25 °C room. Internal sensor: lowers power above 43 °C, pauses at 45 °C
ProtectionsTemperature monitoring, over-charge, over-current and short-circuit protection; tested to UL 2056
Cycle lifeKeeps 80% of its capacity after 800 cycles (our test)
ColorsClay (this item), Moss, Paper, Soot; marigold stand inside on all four
In the boxPower bank, 60 cm (2 ft) USB-C to USB-C braided cable, wool-felt sleeve, The Fine Print card
Not in the boxWall adapter: any 30 W USB-C PD adapter works
Carry-on37 Wh, under the 100 Wh limit; carry-on only, with you: never in checked bags or the overhead bin
Qi ID and FCC IDOn the label under the stand

Product description

Kelda 37 is a magnetic power bank named for its energy: 37 Wh. 10,000 mAh at 3.7 V (37 Wh); rated capacity 6,000 mAh at 5 V 3 A. That is about 1.5 charges on iPhone 17, 1.3 on 17 Pro, 1.1 on 17 Pro Max and 1.7 on iPhone Air (wireless, 0 to 100%, phone idle, 25 °C room, our test, rounded down).

It snaps onto iPhone 12 and later and MagSafe cases. Qi2 25W wireless: up to 25 W on iPhone 17, 17 Pro, 17 Pro Max, 16 Plus, 16 Pro Max, 18 Pro and 18 Pro Max; up to 22.5 W on 16 and 16 Pro; up to 20 W on Air; up to 15 W on 17e and 12 to 15, and up to 12 W on 12 mini and 13 mini. On iPhone 16e and phones without built-in magnets, use a magnetic case (sold separately); magnetic cases up to 2.5 mm charge at full speed. Qi ID and FCC ID: on the label under the stand.

One USB-C port, 30 W in and out. Two phones at once: 30 W shared, 15 W + 15 W. Plugged in, it charges your phone and itself (pass-through). With nothing attached, it refills from 0% in about 2 h 10 min on a 30 W USB-C PD adapter; pass-through takes longer. Keeps 80% of its capacity after 800 cycles (our test).

Warm is normal: the surface is typically 38 to 41 °C (100 to 106 °F) at 25 W in a 25 °C room. Its internal sensor lowers power above 43 °C and pauses at 45 °C until it cools. Temperature monitoring with over-charge, over-current and short-circuit protection; tested to UL 2056 by an ISO/IEC 17025 laboratory.

Its plate opens to 65 degrees as a portrait stand. 105 x 70 x 15.2 mm (0.60 in thick, stand closed), 205 g (7.2 oz).

37 Wh, under the 100 Wh carry-on limit. Carry-on only: keep it with you, never in checked bags or the overhead bin. Hold the button 3 s to switch wireless off, and don't use or charge it on board. Check your airline.

In the box: Kelda 37, a 60 cm (2 ft) braided USB-C cable, a wool-felt sleeve and The Fine Print card.

iPhone and MagSafe are trademarks of Apple Inc., registered in the U.S. and other countries and regions. Android is a trademark of Google LLC.

Description · 1,970 of 2,000 characters

Materials

Shell: polycarbonate with a mineral-matte finish. Stand: anodized aluminum, marigold. Cell: lithium-ion polymer, 1 battery of 2 cells. Cable: braided USB-C to USB-C. Sleeve: wool felt. Box: paper sleeve and molded-pulp tray.

How to use

To charge your phone: snap the pack onto its back, centered, and wireless charging starts. Press the button once to show the pack's level on the readout for 5 seconds. To charge a second device, connect it to the USB-C port: 30 W shared, 15 W + 15 W. To recharge the pack: plug a 30 W USB-C PD adapter (not included) into the USB-C port; with nothing attached it is full from 0% in about 2 h 10 min. Plugged in, it also charges your phone (pass-through), which takes longer. Unplug it when it is full. Stand: swing the plate open and set the phone down in portrait. Hold the button 3 s to switch wireless off or on; switch it off before you pack it.

Safety warning

WARNING: Lithium-ion battery. Do not expose to fire, water or high heat, and do not leave it in a hot car or in direct sun. Do not puncture, crush, open or modify. Stop using it and unplug it if it swells, smells, leaks or gets hot to hold. Charge it on a hard, open surface where you can see it, not under pillows or blankets, and unplug it when it is full. Keep away from children and pets. Carry-on only, never in checked bags or the overhead bin. Do not throw it in household trash: recycle it at a battery drop-off or hazardous waste site.

The Qi2 certificate number (Qi ID), the FCC ID, the country of origin, the UL 2056 test report number, the battery shipping papers (cell weight, UN 38.3 test summary, safety data sheet), the capacity, heat, magnet, stand and cycle-life test reports, the camera fit check, the manufacturer's and EU responsible person's details and the sister products' ASINs are placeholders in the concept. On the label they are gray fields, no number is invented, and the ASINs are left out here.

What a live store adds on top of this: its own interface, reviews, ads and the buy box logic. None of that is designed by the listing. Everything above this line is.

Concept project. Fictional brand, scenes visualized with AI.

Walmart

The same product for Walmart Marketplace, the second-largest marketplace in the US. Same scenes; the image text and the copy are rewritten to Walmart's rules.

What changed from Amazon

  • Images at 2200 × 2200, the size Walmart asks for (Amazon: 2000).
  • Walmart allows no benefit claims on images, so only facts stay: doses, steps, ingredients.
  • Short key features of up to 80 characters each instead of five long bullets.
  • One-paragraph description of at least 150 words, the way Walmart shows it.
  • A+ modules move to Brand Highlights when the client owns the brand.
  • Slots 03, 05 and 06: "about 1.5 charges", "hangs on by its magnets alone, 1,100 g" and "slim, coat pocket: yes" became 37 Wh, iPhone compatibility, 205 g and the dimensions. Slots 02, 04 and 08: charging times and "full speed" left the footnotes; the 04 headline is the surface temperature, 38 to 41 °C.
  • On Walmart a power bank is a lithium battery: the listing goes live only with a Safety Data Sheet for this model, its watt-hours and the battery weight.

Demonstration: a product page built from the Walmart files. Generic layout; buttons do nothing.

Kelda 37 (37 Wh) magnetic power bank in Clay on white, stand slightly open to the marigold inside
Phone standing in portrait on the open Kelda 37 stand on a paper-covered kitchen table at 7 am
Woman on a waiting-room bench holding a phone, the Kelda 37 pack on its back
Phone screen down on a sandstone cafe table with the Kelda 37 pack on its back, beside a cup
Hand holding the Kelda 37 pack, a phone hanging beside it on the magnets alone
Drawing to scale of Kelda 37 on the back of a generic phone, and in section over a magnetic case
Close-up of the Kelda 37 stand open on the marigold inlay, the printed label reads 37 Wh
Two phones on sandstone, one with the Kelda 37 pack, a white cable from the pack to the other

text rewritten to Walmart's rules

Kelda

Kelda 37 Wh Magnetic Power Bank, 10,000 mAh, Qi2 25W, Fold-Out Stand

$7499

Key features

  • 37 Wh: 10,000 mAh at 3.7 V; rated 6,000 mAh at 5 V 3 A
  • Qi2 25W magnetic: up to 25 W on supported iPhone models
  • About 1.5 charges on iPhone 17 (wireless, 25 C, our test, rounded down)
  • One USB-C port, 30 W in and out; 30 W shared, 15 W + 15 W
  • Pass-through: plugged in, it charges your phone and itself
  • Fold-out stand opens to 65 degrees, portrait
  • For iPhone 12 and later except 16e; 16e needs a magnetic case
  • Temperature monitoring; over-charge, over-current, short-circuit protection
  • 37 Wh, under the 100 Wh carry-on limit; carry-on only
  • 105 x 70 x 15.2 mm, 205 g; USB-C cable and felt sleeve included
Brand
Kelda
Model Number
KD37-CL
Color
Clay
Battery Capacity
10000 mAh
Product Is or Contains This Battery Type
Lithium ion (lithium-ion polymer)
Batteries Included
Yes
Battery Model
KD37
Battery Form Factor
Battery
Battery Count
1
Battery Cell Count
2
Battery Watt Hour Rating
37 Wh
Connector Type
USB Type-C
Maximum Output Wattage
30 W
Assembled Product Dimensions (L x W x H)
4.13 x 2.76 x 0.60 in
Assembled Product Weight
7.2 oz
Count Per Pack
1
Warranty Length
2 years

Product description

Kelda 37 is a magnetic power bank named for its energy: 37 Wh. 10,000 mAh at 3.7 V (37 Wh); rated capacity 6,000 mAh at 5 V 3 A. That is about 1.5 charges on iPhone 17, 1.3 on 17 Pro, 1.1 on 17 Pro Max and 1.7 on iPhone Air (wireless, 0 to 100%, phone idle, 25 °C room, our test, rounded down). It snaps onto iPhone 12 and later and magnetic cases. Qi2 25W wireless: up to 25 W on iPhone 17, 17 Pro, 17 Pro Max, 16 Plus, 16 Pro Max, 18 Pro and 18 Pro Max; up to 22.5 W on 16 and 16 Pro; up to 20 W on Air; up to 15 W on 17e and 12 to 15, and up to 12 W on 12 mini and 13 mini. On iPhone 16e and phones without built-in magnets, use a magnetic case (sold separately); magnetic cases up to 2.5 mm charge at full speed. Qi ID and FCC ID: on the label under the stand. One USB-C port, 30 W in and out. Two phones at once: 30 W shared, 15 W + 15 W. Plugged in, it charges your phone and itself (pass-through). With nothing attached, it refills from 0% in about 2 h 10 min on a 30 W USB-C PD adapter (not included); pass-through takes longer. Keeps 80% of its capacity after 800 cycles (our test). Warm is normal: the surface is typically 38 to 41 °C (100 to 106 °F) at 25 W in a 25 °C room. Its internal sensor lowers power above 43 °C and pauses at 45 °C until it cools. Temperature monitoring with over-charge, over-current and short-circuit protection; tested to UL 2056 by an ISO/IEC 17025 laboratory. Its plate opens to 65 degrees as a portrait stand. 105 x 70 x 15.2 mm (0.60 in thick, stand closed), 205 g (7.2 oz). 37 Wh, under the 100 Wh carry-on limit. Carry-on only: keep it with you, never in checked bags or the overhead bin. Hold the button 3 s to switch wireless off, and don't use or charge it on board. Check your airline. In the box: Kelda 37, a 60 cm (2 ft) braided USB-C cable, a wool-felt sleeve and The Fine Print card. iPhone is a trademark of Apple Inc., registered in the U.S. and other countries and regions.

Own store

The product page on the brand's own store, whole and in its style: gallery, buy box, ritual, ingredients, the line, questions and the brand story.

What's included

  • The first image is a clean pack shot with no text, so the product qualifies for Google Shopping.
  • On phones the add-to-cart button stays under the thumb.
  • Gallery at 2048 × 2048, the size Shopify recommends; page sections are standard Shopify store blocks.
  • Wide banner frames come from the same scenes; no new shoot needed.

A live page inside the frame: scroll it, open the questions and the gallery. Checkout does nothing.

Open the page on its own ↗

TikTok Shop

The same product for TikTok Shop, where people buy straight from the feed. The rules are different, so the listing is rebuilt.

What changed from Amazon

  • TikTok Shop allows no added text on any image: nine clean frames instead of infographics, the main one on white.
  • Product name on the beauty formula: brand, category, benefit, skin type, size.
  • The description must carry ingredients, directions and a patch test note.
  • People in the photos are AI-generated, and the description says so, as TikTok requires.
  • A 9:16 video under 5 MB for organic posts. A shoppable video on TikTok needs live footage, and we tell the client so.
  • A power bank is dangerous goods: TikTok Shop takes it only with a Safety Data Sheet and UN 38.3 test summary for this model, after Electronics category approval (UL 2056 and FCC certificate, safety mark in the photos). We tell the client so up front.

Demonstration: the product card and the video built from the TikTok Shop files. Generic layout.

Kelda 37 (37 Wh) magnetic power bank in Clay on white, stand slightly open to the marigold inside
Woman on a waiting-room bench holding a phone, the Kelda 37 pack on its back
Phone standing in portrait on the open Kelda 37 stand on a kitchen table
Man sketching at a cafe counter, his phone on the open Kelda 37 stand
Hand holding the Kelda 37 pack, a phone beside it on the magnets
Two phones on sandstone, one with the Kelda 37 pack, a white cable from the pack to the other
Phone screen down on a cafe table with the Kelda 37 pack on its back
Close-up of the stand open on the marigold inlay, the printed label reads 37 Wh
Open Kelda 37 box from above: pack in its pulp tray, coiled cable, felt sleeve, The Fine Print card

$74.99

Kelda 37 Wh Magnetic Power Bank 10,000 mAh, Qi2 25W Wireless Portable Charger with Fold-Out Stand, 30 W USB-C In and Out, Pass-Through Charging, Clay

Description

Kelda 37 is a magnetic power bank named for its energy: 10,000 mAh at 3.7 V is 37 Wh; rated capacity 6,000 mAh at 5 V 3 A. It snaps onto the back of your phone, charges with Qi2 25W, and its plate opens into a stand at 65 degrees.

  • Qi2 25W wireless: up to 25 W on iPhone 17, 17 Pro, 17 Pro Max, 16 Plus, 16 Pro Max, 18 Pro and 18 Pro Max; up to 22.5 W on 16 and 16 Pro; up to 20 W on Air; up to 15 W on 17e and 12 to 15; up to 12 W on 12 mini and 13 mini
  • About 1.5 charges on iPhone 17, 1.3 on 17 Pro, 1.1 on 17 Pro Max, 1.7 on iPhone Air (wireless, 0 to 100%, phone idle, 25 °C, our test, rounded down)
  • One USB-C port, 30 W in and out; two phones at once: 30 W shared, 15 W + 15 W; pass-through charging
  • Fold-out stand opens to 65 degrees, portrait; 105 x 70 x 15.2 mm, 205 g (7.2 oz)
  • Temperature monitoring with over-charge, over-current and short-circuit protection; tested to UL 2056
Compatibility

For iPhone 12 and later except 16e. On iPhone 16e and phones without built-in magnets, use a magnetic case (sold separately). Magnetic cases up to 2.5 mm. Android phones with built-in magnets charge at their own wireless speed.

How to use and charge

To charge your phone: snap the pack onto its back, centered, and wireless charging starts. Press the button once to show the pack's level on the readout for 5 seconds. To charge a second device, connect it to the USB-C port: 30 W shared, 15 W + 15 W. To recharge the pack: plug a 30 W USB-C PD adapter (not included) into the USB-C port; with nothing attached it is full from 0% in about 2 h 10 min. Plugged in, it also charges your phone (pass-through), which takes longer. Unplug it when it is full. Stand: swing the plate open and set the phone down in portrait. Hold the button 3 s to switch wireless off or on; switch it off before you pack it.

Travel

37 Wh, under the 100 Wh carry-on limit. Carry-on only: keep it with you, never in checked bags or the overhead bin. Hold the button 3 s to switch wireless off, and don't use or charge it on board. Check your airline.

In the box

Kelda 37, a 60 cm (2 ft) braided USB-C cable, a wool-felt sleeve and The Fine Print card. Adapter not included: any 30 W USB-C PD adapter works.

Safety warnings

WARNING: Lithium-ion battery. Do not expose to fire, water or high heat, and do not leave it in a hot car or in direct sun. Do not puncture, crush, open or modify. Stop using it and unplug it if it swells, smells, leaks or gets hot to hold. Charge it on a hard, open surface where you can see it, not under pillows or blankets, and unplug it when it is full. Keep away from children and pets. Carry-on only, never in checked bags or the overhead bin. Do not throw it in household trash: recycle it at a battery drop-off or hazardous waste site.

iPhone is a trademark of Apple Inc., registered in the U.S. and other countries and regions. Android is a trademark of Google LLC.

People in the photos are AI-generated.

Product card: swipe through nine frames

Delivered, file by file

  • Gallery: 8 images, 2000 x 2000, one number on a marigold plate with its condition on every image after the main one, the label under the stand in slot 07, frames with a person and a hand in slots 03 and 05, flagged for the AI tag at upload
  • Premium A+: 7 modules, 12 image files, mobile variants for modules 1 and 4, the Q&A and the spec table as live text
  • Brand Story: background 2928 x 1250, focus card 724 x 906, logo card 630 x 290; graphics for the paper sleeve, the label under the stand and The Fine Print card
  • Listing copy in English: title, item highlights, 5 bullets, description, backend search terms, attributes, materials, directions and the warning
  • EU notes: the manufacturer and the EU responsible person with addresses (GPSR), warnings in German and French, WEEE and battery registration in Germany, a UIN in France, a Declaration of Conformity under RED, RoHS and the Battery Regulation 2023/1542, CE only as a self-declaration, metric units and °C, the travel line with no approval words
  • Proof list: 32 items the manufacturer supplies before a real launch: the Qi2 certificate and Qi ID, the UL 2056 report, the FCC ID, the battery shipping papers (UN 38.3, safety data sheet, cell weight), capacity, heat, magnet, stand and cycle-life tests, a camera fit check, a USPTO search for the name Kelda

Checked before export

  • Title · 73 of 75 characters
  • Item highlights · 120 of 125
  • Bullets · 5 of 5, longest 254 of 500
  • Description · 1,970 of 2,000
  • Backend search terms · 208 of 249 bytes
  • Main image fill · 90 percent, shadow excluded, minimum 85
  • Automated checks · 32 of 32

Checked October 2026. For your product the same table comes with the files.

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