INIU P51L-P1 20000mAh 45W power bank with built-in USB-C cable
A 20000mAh power bank delivering 45W USB-C PD output with a built-in cable that doubles as a strap
- Total capacity20,000 mAh
- Compatible phone brandsApple, Samsung, Google, Universal
- Compatible phone modelsiPhone 16/15/14/13/12, Samsung Galaxy S25/S24/S23/S22, Googl
- Battery chemistryLithium Polymer
- Voltage5 V-20 V
- AmperageUp to 3A
- 45W USB-C PD fast charging powers laptops and phones quickly
- 20000mAh capacity delivers up to 3.6 full charges for iPhone 15
- Built-in USB-C cable doubles as a carrying strap and removes the need for extra cords
- Charge three devices at once using the built-in cable, USB-C port and USB-A port
- LED digital display shows remaining battery percentage while the built-in flashlight adds emergency light
20000mAh portable power for laptops and phones
The INIU P51L-P1 is a 20000mAh power bank built for users who need to charge laptops, phones and handheld consoles away from wall outlets. Its 45W USB-C PD output handles a MacBook Air or Steam Deck while the USB-A port adds 22.5W for legacy devices. The 74Wh lithium-polymer cell stays within airline carry-on limits.
Integrated cable doubles as a strap
A short USB-C cable is built into the chassis and serves as both input and output, removing the need to pack a separate cord. The cable loops out to form a carrying strap, while a second USB-C port and the USB-A port allow three devices to charge at once. A digital display shows remaining percentage and a small flashlight adds utility in low light.
Replaces a wall charger and spare cables on trips
Travellers who currently carry a separate laptop brick, phone charger and extra cables can consolidate to this single unit. The jump is worth it when you regularly top up a USB-C laptop and two smaller devices between flights or meetings. Buyers who need more than 45W for larger laptops or who want wireless charging should look elsewhere.
How it compares
Measured against everything we stock in Portable Chargers & Battery Packs, at today’s prices. Recalculated every night.
- Price $30.99
- Cheaper than about 68% of the 1,307 comparable items (median $36.99).
Specifications
| Product | |
|---|---|
| Brand name | INIU |
| Product line | Carry P51L |
| Model name | P51L-P1 |
| Part number | P51L-P1 |
| Total capacity | 20,000 mAh |
| Product type | Power Bank |
| Product color | Black |
| Ports & slots | |
| Output type | USB-C PD up to 45 W; USB-A up to 22.5 W |
| Input | USB-C PD up to 27 W |
| Power | |
| Battery chemistry | Lithium Polymer |
| Voltage | 5 V-20 V |
| Amperage | Up to 3A |
| Size & build | |
| Measurements | 4.5 × 2.9 × 1.1 in |
| Product weight | 0.72 lb (0.33 kg) |
| Compatibility | |
| Compatible phone brands | Apple, Samsung, Google, Universal |
| Compatible phone models | iPhone 16/15/14/13/12, Samsung Galaxy S25/S24/S23/S22, Google Pixel, Universal USB-C Devices |
| More details | |
| Life cycle | 500+ charge cycles |
Questions about this item
What does the USB-C PD 45W output cap at for laptop charging?
The USB-C Power Delivery port delivers up to 45 watts, enough to charge a MacBook Air or Steam Deck at full speed while the built-in cable and USB-A port share the remaining budget.
What are the exact dimensions so I can check if it fits my bag pocket?
It measures 4.5 by 2.9 by 1.1 inches and weighs 0.72 lb, matching the airline-safe 74 Wh limit for carry-on luggage.
How do I recharge the power bank itself using the built-in cable?
Plug the integrated USB-C cable into any USB-C PD charger up to 27 W; the cable handles both input and output, so no separate cord is needed.
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