DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🔋 Power your productivity with sleek, reliable energy!
This 3.7V 4000mAh Lithium Polymer rechargeable battery features a compact 90x60x6mm design and a 2P PH 2.0mm pitch connector, making it an ideal, lightweight replacement battery for devices like the Keychron K4. With a max charging voltage of 4.25V and 2000mAh current, it delivers efficient, long-lasting power in a durable Li-Po format.
| ASIN | B0DB1VKT9X |
| Battery Capacity | 4000 Milliampere Hour (mAh) |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 0.1 Pounds |
| Battery capacity | 4000 Milliampere Hour (mAh) |
| Battery cell composition | Lithium Ion |
| Best Sellers Rank | 10,435 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 236 in Rechargeable Household Batteries |
| Brand | Uxney |
| Brand Name | Uxney |
| Country of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 61 Reviews |
| Manufacturer | Uxney |
| Model Number | UK606090 |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Number of batteries | 1 Lithium Ion batteries required. (included) |
| Reusability | Rechargeable |
| Unit Count | 1.0 count |
| Unit count | 1.0 count |
| Voltage | 3.7 Volts |
C**S
If you're looking for a replacement battery for your Keychron K4
This is a drop in replacement for the battery on a Keychron K4. Great battery so far, no issues whatsoever. Has the correct connector and easy to install.
M**.
ok
charges well from usb however buy a bigger battery as this one is a ripoff
H**H
Long life and fair value
Bought to replace expired 8yr old battery this one has a higher mAH so should last longer as I only use solar to recharge it. Good value and long life.
S**E
Perfect!
Works, thank you, replaced old blow up battery with this one with ease. Fast shipping too, thank you.
A**L
worked fine
Battery seems to work fine
E**R
Faultly - will not charge.
The battery is faulty and will not charge. I initially used the original PSU supplied with a model helicopter (fitted with this battery), this failed to charge the battery. To eliminate any problems with the original PSU I then used a test bench PSU set with the recommended settings of 4.25V dc, 250mA, this PSU indicated that the battery was not drawing any current, i.e. 0mA.
P**L
No sure yet
My Heltec t114 only charges it to 80% not sure if it's the device or battery. Haven't tried it in a different device or tried a different battery in the Heltec yet will edit once checked.
A**K
2000mAh
Actually 2000mAh
Trustpilot
3 days ago
1 month ago