NET10 Solar Z795G Replacement Battery 3.8V 2000mAh

NET10 Solar / Z795G — 3.8V Li-ion Replacement Battery

This 3.8V, 2000mAh Li-ion battery replaces the original cell in the NET10 Solar and Z795G smartphones. It restores power to a phone that no longer holds a charge or fails to power on. Capacity is 2000mAh (7.6Wh) — matching the factory specification.

• Solar and Z795G compatibility: Both the Solar and Z795G share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell fits both without modification.
• Bench tested on actual hardware: We cycled this battery through charge, full load, and cutoff on the Z795G platform. The BMS responded correctly to low-voltage cutoff and accepted a standard charge current without tripping into protection mode.
• Fuel gauge recalibration on first use: On first installation, disable fast charging and run one full discharge-to-charge cycle before resuming normal use. The fuel gauge IC on these ZTE-platform devices calibrates its coulomb counter against the cell's discharge curve on the first cycle — skipping this step causes percentage readings to drift early in the cell's life.

Sudden shutdown at 20–30% on the NET10 Solar after a cell swap

The Solar's fuel gauge IC stores a discharge curve from the previous cell. When a new cell goes in, that stored curve no longer matches the actual voltage-vs-capacity profile of the replacement. The phone's software sees what it thinks is 25% remaining, but the new cell's open-circuit voltage drops below the modem's minimum rail during a call or screen-on burst — triggering an abrupt shutdown. Running one full uninterrupted discharge cycle to cutoff, then charging to 100% without interruption, forces the coulomb counter to relearn the new cell's curve. After that cycle, shutdowns at partial charge stop.

Device won't power on after sitting discharged in storage

Li-ion cells stored fully discharged can drop below 2.5V per cell, which triggers a hard BMS lockout — the protection circuit opens and blocks all current flow to prevent damage. The phone shows nothing when you press the power button, and a standard charger makes no difference. Connect the phone to a wall adapter rated at 5V/1A or higher and leave it for 20–30 minutes before attempting to power on — the charge IC on the Solar will trickle current into the cell at a reduced rate until voltage climbs above the BMS re-enable threshold of approximately 2.9V. Once the screen shows a charging indicator, the BMS has re-initialised and normal charging resumes.