RETMSR YD-887B 30000mAh 22.5W power bank
A 30000mAh power bank with 22.5W USB-A and 20W USB-C fast charging, built-in flashlight, and multiple safety protections
- Total capacity30,000 mAh
- Battery chemistryLithium polymer
- Voltage3.7 V
- Amperage3 A
- Measurements6.77 in × 3.43 in × 1.0 in
- Product type30,000 mAh
- 30000mAh capacity delivers roughly 10 iPhone 8 charges
- 5W USB-A ports charge Galaxy S9 in 40 minutes
- 20W USB-C PD port powers compatible devices quickly
- Four ports charge multiple phones, tablets or accessories at once
- Built-in flashlight adds emergency light when you need it
30000mAh high-capacity power bank
The RETMSR YD-887B packs a 30000mAh lithium-polymer cell rated at 3.7 volts. It delivers roughly 10 full charges for an iPhone 8, 7 charges for an iPhone 12, 6 charges for a Galaxy S9 and 3 charges for a Pad Mini 5. The unit also powers tablets, headphones, cameras, desk fans, hand warmers and gaming consoles.
22.5W USB-A and 20W USB-C fast charging
Three USB-A ports share a 22.5W maximum output and a 20W Power Delivery USB-C port handles both input and output. Four devices can charge at once, with a Galaxy S9 reaching full capacity in about 40 minutes. Dual 18W Micro-USB and 20W Type-C inputs refill the bank in roughly 6 hours using a 20W adapter.
Pocket-sized 6.77 x 3.43 x 1.0 inch design
At 1.03 lb the bank fits in a pocket or bag without adding bulk. Built-in safeguards include over-charge protection, auto shut-off and short-circuit protection. A scratch-resistant finish and LED indicator lights add durability and status visibility, while an integrated flashlight covers emergency or low-light needs.
How it compares
Measured against everything we stock in Portable Chargers & Battery Packs, at today’s prices. Recalculated every night.
- Price $40.99
- Pricier than about 59% of the 1,307 comparable items (median $36.99).
Specifications
| Product | |
|---|---|
| Brand name | RETMSR |
| Model name | YD-887B |
| Part number | YD-887B |
| Total capacity | 30,000 mAh |
| Product type | 30,000 mAh |
| Product color | Black Red |
| Power | |
| Battery chemistry | Lithium polymer |
| Voltage | 3.7 V |
| Amperage | 3 A |
| Size & build | |
| Measurements | 6.77 in × 3.43 in × 1.0 in |
| Product weight | 1.03 lb (0.47 kg) |
Questions about this item
Can the YD-887B charge my older Micro-USB phone and a USB-C tablet at the same time?
Yes, it has three USB-A ports and one USB-C port, so you can connect up to four devices simultaneously using the cables you already own.
How do I confirm the 22.5W fast charge is active on my Galaxy S9?
The phone will show its fast-charging animation and reach a full charge in about 40 minutes when plugged into a USB-A port.
Does the box include a 20W wall charger for the 6-hour recharge?
No, only the power bank and a charging cable are supplied; a 20W adapter must be purchased separately to hit the 6-hour refill time.
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