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Ultra slim Titanium Gray magnetic power bank with LED display

No Sew

No Sew ST-338 5000mAh power bank Titanium Gray

SKU CH-Q8DD-FYVP3 MPN ST-338

Ultra-slim 5000mAh magnetic power bank with LED display and 15W USB-C output for iPhone 12–17 series

  • Type5000 milliamp_hours
  • ColorTitanium Gray
  • Compatible Phone ManufactureriPhone
  • Compatible Phone ModeliPhone
  • Capacity5000 milliamp_hours
  • Chemicallithium_ion
  • Ultra-slim 0.4 inch design fits any pocket
  • 5000mAh capacity recharges iPhone 17 once
  • Strong magnetic snap-on holds during daily use
  • LED display shows exact battery percentage
  • 15W fast charging reaches 40% in 30 minutes

Everyday 5000mAh magnetic backup

This No Sew ST-338 power bank stores 5000 milliamp_hours in a 0.4 inch titanium-grey casing that weighs 0.35 lb. Built-in magnets snap onto compatible iPhones for wireless charging, while a USB-C port handles wired input and output at up to 15W. An LED display shows the remaining percentage so you know when to top up before heading out.

Check phone compatibility and case choice

The magnets align with iPhone 12 through 17 series and AirPods wireless charging cases; selected Android phones with magnetic charging or MagSafe-compatible cases also work. Metal cards, keys, pop grips or thick non-magnetic cases can weaken the hold or block charging, so remove them before snapping the bank on. Use the USB-C cable for a faster wired boost when wireless speed is not enough.

Suits light daily carry.

The slim 5000mAh capacity delivers roughly 0.7 to 0.9 full charge for many iPhone models, making it ideal for commuters, office days or short flights where a single top-up is enough. Travellers needing multiple full recharges, users who must charge several devices at once, or anyone who prefers a larger reservoir should look at higher-capacity alternatives.

Highlights

  • Ultra-slim 0.4 inch design fits any pocket
  • 5000mAh capacity recharges iPhone 17 once
  • Strong magnetic snap-on holds during daily use
  • LED display shows exact battery percentage
  • 15W fast charging reaches 40% in 30 minutes

Specifications

BrandAobbow
ModelST-338
Type5000 milliamp_hours
ColorTitanium Gray
Part NumberW7
Compatible Phone ManufactureriPhone
Compatible Phone ModeliPhone
Capacity5000 milliamp_hours
Chemicallithium_ion
Volt5 volts
Amp3 amps
OutputUSB Type C
InputUSB Type C
Dimension3.4 in x 3.5 in x 0.4 in
Weight0.35 lb

Questions about this item

What comes in the box with the ST-338 and do I need to buy a USB-C cable or wall charger separately?

The package contains the 5000mAh magnetic power bank itself. A USB-C cable and a USB-C wall charger are not included and must be purchased separately if you do not already own them.

The listing mentions iPhone 12 through 17 series and a Samsung Galaxy S26 example — which capacity should I choose for my model?

This model is only offered in a single 5000mAh capacity. It can fully recharge an iPhone 17 once or provide about 70 percent power for a Galaxy S26, so no capacity choice is required.

The headline says 15W fast charging and 0 to around 40 percent in 30 minutes — what does that actually deliver on my iPhone 15?

Using the USB-C port you can reach roughly 40 percent in 30 minutes on an iPhone 15. Wireless magnetic charging is slower, and real-world speed varies with case thickness, background apps and temperature.

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