2100mA slim power banks
| Model No. | GF4031 |
|---|---|
| Sample Time | 7 days |
| OEM / ODM | Available |
| Port | Shenzhen or HK,China |
| Views | 3821 views |
US$ 4~11 /Piece | Get Latest Price
| Model No. | GF4031 |
|---|---|
| Sample Time | 7 days |
| OEM / ODM | Available |
| Port | Shenzhen or HK,China |
| Views | 3821 views |
US$ 4~11 /Piece | Get Latest Price
The 2100mA slim power bank is built for buyers who need a pocket-friendly charging unit that still carries enough reserve for a full day away from a wall socket. Its slender body slips into a jacket pocket, a tote, or a branded gift box without adding bulk, making it an easy add-on to any electronics assortment.
Core specifications

Where it sells
Commuting, shopping trips, trade shows, concerts, and long business travel all create the same problem: a phone that runs flat at the worst moment. Telecom counters, gift shops, online sellers, and corporate gift agencies can place this unit in front of that demand, and the black, white, and red shells give a program several visual options from one order.
Branding and ordering
Flat outer surfaces suit logo printing or engraving, and the shell color can be matched to a campaign palette. Sampling, mixed-batch quantities, imprint details, and packing format are all confirmed against your project brief at quotation stage.
| Item | Value |
|---|---|
| Input | DC5V 2100mA |
| Output | DC5V 2100mA |
| Capacity | 4500mAh |
| Cell type | Polymer lithium battery |
| Operating Temperature | -10 - +45℃ |
| DC Charging Time | 5-7 hour |
| Dimension | (L*W*H)123*43*18mm |
| Weight | 112g |
| Colors | Black/white/RED |