Geforce GTX 970M Laptop Replacement Battery 14.8V 4400mAh

Geforce GTX 970M / K73-5N — 14.8V Li-ion Replacement Battery

This is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for laptops fitted with the Geforce GTX 970M GPU or listed under the K73-5N model designation. It covers high-performance gaming and workstation notebooks from the 2014–2016 production window where the original cell has degraded or failed entirely. Voltage and form factor match the stock specification: 137.10 × 89.10 × 24.10mm.

• GTX 970M and K73-5N platform fit: Both models share the same 14.8V four-cell series configuration and connector pinout, which is why one cell covers both. The BMS on each platform expects the same charge termination voltage, so no firmware workaround is needed.
• Bench tested on actual hardware: We cycled this cell through full charge and load discharge on a GTX 970M platform. The BMS accepted the new cell without tripping an over-voltage fault, and charge current stepped down correctly at the 16.8V termination point.
• Post-install discharge cycle on GTX 970M laptops: After fitting this cell, run one full discharge to the BIOS hibernate cutoff, then charge uninterrupted to 100%. This resets the battery learn cycle and clears the inaccurate health warning the BIOS throws after every cell swap.

Why the GTX 970M laptop shuts down at 20–30% charge shown

The GTX 970M draws a combined CPU-plus-GPU load that can spike well above 60W. When the cell ages, its internal resistance climbs and voltage collapses under that load before the state-of-charge readout catches up. The BIOS reads a voltage cliff — not the percentage — and triggers an emergency shutdown to protect the board. A new cell with lower internal resistance holds the rail above the 10.8V cutoff threshold through those spikes, so the shutdown stops happening at what looks like a non-critical charge level.

BIOS reporting the replacement battery as 0% or unknown health

The fuel gauge IC in the laptop was calibrated against the EEPROM data stored by the old cell. When a new cell goes in, that data no longer matches actual cell chemistry and the gauge reports 0%, unknown, or critically poor health immediately. This is not a fault with the replacement battery. Run two full discharge-to-hibernate and uninterrupted charge-to-100% cycles — the fuel gauge IC recalibrates against the new cell and the health warning clears by the third cycle.