Cricket Chorus D930 Replacement Battery 3.7V 1100mAh

Cricket Chorus / D930 — 3.7V Li-ion Replacement Battery

This 3.7V, 1100mAh Li-ion battery replaces the original cell in the Cricket Chorus and D930 smartphones. It fits into the battery compartment and connects to the device's charge and power management circuitry. Install it when the original cell no longer holds a usable charge or the phone shuts down unexpectedly.

• Chorus and D930 compatibility: Both models share the same battery bay dimensions (54.50 × 33.50 × 5.50mm), connector pinout, and 3.7V nominal voltage rail. The BMS in each device will accept this cell without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the D930 platform. The BMS accepted the cell on first connection, charge termination triggered correctly at full voltage, and the fuel gauge IC tracked state-of-charge without error flags after a full conditioning cycle.
• Fuel gauge recalibration after swap: On first use, disable fast charging if your carrier plan or device settings allow it, then run one full discharge down to auto-shutoff followed by a complete charge. This lets the coulomb counter recalibrate against the new cell's actual discharge curve before the OS starts reporting percentages you can trust.

Sudden shutdown at 20–30% on the Chorus after a cell swap

New Li-ion cells have a slightly different voltage-versus-capacity curve than a broken-in original. When the Chorus modem fires up during a call or data burst, it pulls a short high-current spike. If the fuel gauge IC is still calibrated to the old cell, it misreads the voltage sag as a dangerously low state-of-charge and triggers an emergency shutdown. This is not a faulty battery — it is the fuel gauge IC protecting the device against what it thinks is a voltage cliff. One full discharge-to-shutoff cycle followed by an uninterrupted full charge corrects the calibration and stops the premature shutdowns.

Phone stays at 0% and won't power on after the replacement cell sat in storage

Li-ion cells shipped or stored for extended periods can drop below 2.5V per cell. At that voltage, the BMS on the Chorus enters a lockout state and refuses to pass current to the device — the phone appears completely dead. Connect the phone to a wall charger (not a PC USB port, which may not deliver enough current) and leave it for 15–20 minutes without attempting to power it on. The charge IC will trickle current into the cell until it climbs above the BMS recovery threshold, typically around 2.9V, at which point normal charging resumes and the phone will boot.