LGIP-470A Replacement Battery for LG KE970 3.7V 800mAh

LG KE970 Series — 3.7V Li-ion Replacement Battery (LGIP-470A)

This is a 3.7V, 800mAh Li-ion cell for the LG KE970 and its variants, including the KE970U, KU970, and KE70. It replaces the original LGIP-470A pack in phones where the cell has degraded after repeated charge cycles. Slot dimensions are 43.90 × 37.80 × 5.50mm — confirm your existing pack matches before ordering.

• KE970 series compatibility: The KE970, KE970U, KU970, and KE70 all share the same battery bay geometry, connector pinout, and 3.7V supply rail. One cell fits the full group without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on KE970 hardware. The BMS accepted charge from the phone's internal charge IC without tripping overcurrent protection, and voltage held stable under call-load draw.
• Fuel gauge recalibration on first use: On first installation, run one complete discharge to auto-shutoff, then charge uninterrupted to 100%. This gives the KE970's fuel gauge IC a full reference curve against the new cell — without it, the percentage readout will track the old cell's degraded curve, not this one.

Why the KE970 reports wrong battery percentage after a cell swap

The KE970 uses a simple fuel gauge IC that stores a learned discharge curve from the previous cell. When you fit a new 800mAh cell, that stored curve no longer matches actual cell chemistry. The phone reads voltage and maps it against the old, degraded curve — so 60% on screen may not reflect true state of charge. One full discharge-to-shutoff followed by a complete charge resets the reference. After that cycle, the percentage display will track accurately against the new cell.

Sudden shutdown at 20–30% remaining on the new cell

This is a voltage cliff problem, not a capacity problem. Under modem or backlight load, the cell's terminal voltage drops sharply below what the fuel gauge predicts — the phone's protection circuit sees an unsafe voltage and cuts power before the displayed percentage reaches zero. It is common on the first few cycles before the fuel gauge IC has recalibrated. Run two full discharge-charge cycles and the shutoffs will shift to under 10%. If it persists past three cycles, check that terminal voltage at shutoff is not dropping below 3.2V, which would indicate a cell fault.