charmast W1148 10000mAh power bank with built-in cables
A 10000mAh power bank with three built-in cables and six outputs charges multiple devices at once
- Total capacity10,000 mAh
- Compatible phone brandsSmartphone
- Compatible phone modelsSmartphone
- Battery chemistryLithium polymer
- Voltage3.7 V
- Output typeUSB Type C
- Charges six devices at once with three built-in cables and three extra ports
- 10000mAh capacity delivers two full iPhone 16 charges or 1.3 Samsung S24 charges
- 15W fast charging reaches 50 percent battery in 30 minutes
- Ultra-slim 0.77 inch profile and 9.2oz weight slips into pockets and bags
- UL FCC CE certified with temperature control against overheating and short circuits
What it is
The charmast W1148 is a 10000mAh lithium-polymer power bank that stores enough energy for roughly two full phone charges. Three cables are built directly into the slim 5.67 by 2.64 by 0.71 inch body, so nothing extra needs packing. Six devices can draw power at once through those cables and the additional ports. It delivers 5V 3A output for 15W charging speed.
Who it suits
Travellers and commuters who want a single pocket-sized unit that handles USB-C, Micro-USB and older iPhone connectors without carrying separate leads. Families or groups sharing one charger on a trip will appreciate the six simultaneous outputs. Buyers who need higher-wattage laptop charging or wireless charging should consider other options, as this model is limited to 15W wired output and has no wireless pad.
Deciding specification
The 10000mAh capacity at 3.7V determines how many phone recharges are possible before the bank itself needs recharging. Expect about two full cycles for a modern smartphone or 1.3 cycles for a larger flagship. If your daily carry demands more stored energy than that, a higher-capacity bank will be required.
How it compares
Measured against everything we stock in Portable Chargers & Battery Packs, at today’s prices. Recalculated every night.
- Price $37.99
- Typical for this category: the median of 1,307 items is $36.99.
Specifications
| Product | |
|---|---|
| Brand name | Charmast |
| Model name | W1148 |
| Total capacity | 10,000 mAh |
| Product type | 10,000 mAh |
| Product color | Gray Pink |
| Ports & slots | |
| Output type | USB Type C |
| Input | USB Type C |
| Power | |
| Battery chemistry | Lithium polymer |
| Voltage | 3.7 V |
| Size & build | |
| Measurements | 5.67 in × 2.64 in × 0.71 in |
| Compatibility | |
| Compatible phone brands | Smartphone |
| Compatible phone models | Smartphone |
Questions about this item
Should I choose the 10000mAh version or is there a larger capacity available?
This model is offered only in 10000mAh, which supplies roughly 2 full charges for iPhone 16 or 1.3 charges for Samsung S24, extending battery life by 2-3 days.
What does the 15W output mean when I plug in my phone?
The 5V 3A rating delivers up to 15W, so a compatible phone can reach about 50% in 30 minutes, though actual speed depends on the device's own charging limits.
How does the USB Type-C port limit charging speed in practice?
The single USB-C port handles both input and output at 5V 3A, capping recharging of the power bank and connected devices at 15W maximum.
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