LGIP-520NV Verizon UN150 Envoy Compatible Battery 3.7V 1000mAh

Verizon UN150 Envoy / VN150 Revere — 3.7V Li-ion Replacement Battery (LGIP-520NV)

This is a 3.7V, 1000mAh Li-ion cell built to the LGIP-520NV specification. It fits the Verizon UN150 Envoy, VN150 Revere, and LG-VN150PP, along with the extended compatibility list covered by OEM part numbers SBPL0099202, LGIP-520NV-2, and SBPL0102702. Physical dimensions are 49.00 × 34.20 × 5.80mm — measure your original before ordering if you are unsure.

• UN150 / VN150 platform fit: These models share the same battery bay geometry, connector pinout, and 3.7V nominal voltage rail. The BMS handshake is consistent across the LGIP-520NV family, so the phone's charge controller recognises the cell without throwing an authentication error.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on the VN150 platform. The BMS held charge termination correctly at 4.2V and low-voltage cutoff engaged before cell damage could occur. Charge IC communication behaved normally throughout.
• Fuel gauge recalibration on first use: After fitting this cell, disable fast charging if your device supports it and run one complete discharge-to-charge cycle before normal use. The phone's fuel gauge IC is still calibrated to your old cell's discharge curve — one full cycle lets it relearn the new cell and report accurate percentages.

Sudden shutdown at 20–30% on the UN150 Envoy after a cell swap

This happens because the fuel gauge IC inside the phone is still mapping charge state against the old cell's impedance curve. A new cell has different internal resistance characteristics, so the voltage appears to cliff earlier under the load of the modem or display backlight. The phone interprets that voltage drop as empty and shuts down — even though the cell has usable charge remaining. One full discharge-charge cycle corrects the fuel gauge's reference baseline and the false shutdowns stop.

Phone shows wrong battery percentage after replacement

The coulomb counter and fuel gauge IC on the VN150/UN150 platform learn a cell's characteristics over time. Swapping in a fresh cell resets none of that learned data — the IC continues using the old curve, causing percentage readings that jump or stall. The fix is straightforward: let the phone discharge to auto-shutoff, then charge uninterrupted to 100% without removing the cable early. After that single cycle the fuel gauge reanchors its calculation to the new cell and percentage reporting stabilises.