Huawei GL10P Replacement Battery 3.7V 2000mAh

Huawei GL10P / 303HW — 3.7V Li-ion Replacement Battery (PBD10LPZ10)

This is a 3.7V 2000mAh Li-ion battery for the Huawei GL10P and 303HW portable WiFi hotspot. It replaces OEM part PBD10LPZ10. Swap it when the original cell no longer holds a charge or the device shuts off unexpectedly under load.

• GL10P and 303HW compatibility: Both models use the same battery bay dimensions, connector pinout, and BMS communication protocol. The replacement cell matches the 65.35 × 45.90 × 6.00mm footprint exactly, so no modification is needed to fit the housing.
• Bench tested on actual hardware: We ran this cell under simultaneous WiFi and cellular modem load with multiple connected clients. The BMS held the voltage rail steady and did not trigger overcurrent cutoff during peak radio output spikes.
• Cellular signal and heat: Keep the GL10P in an open, ventilated spot during extended sessions. When connected devices are at the edge of WiFi range, the cellular radio operates at full output power continuously. That sustained draw raises cell temperature faster than normal use and shortens cycle life if heat cannot dissipate.

Voltage sag when all client slots are full on the GL10P

The GL10P runs a combined WiFi radio and cellular modem from a single 3.7V cell. When all client connections are active and the cellular signal is weak, both radios draw peak current at the same time. This causes a brief voltage drop that the BMS can read as a low-cell condition, triggering a protection cutoff even if the battery shows capacity remaining. The fix is to limit connected devices or move the hotspot closer to the cell tower to reduce modem transmit power.

GL10P won't boot after sitting unused for several weeks

Li-ion cells self-discharge at roughly 2–3% per month. If the GL10P is stored with a partial or low charge, the cell can drop below the minimum boot voltage — typically around 3.0V — and the BMS will block discharge to protect the cell. The device appears completely dead and does not respond to the power button. Connect it to a charger and leave it for at least 30 minutes before attempting to power on; the charger will bring the cell back above the 3.0V threshold needed for the BMS to allow operation.