Nvidia Handheld P2450 Replacement Battery 3.7V 7700mAh

Nvidia Shield Handheld P2450 — 3.7V Li-ion Replacement Battery (CKSU11322)

This 3.7V Li-ion battery replaces the original cell in the Nvidia Shield Handheld P2450, Loki Game, and Shield 2 portable consoles. Capacity is 7700mAh (28.49Wh), matching the factory specification. Fit models share the same connector, cell footprint, and BMS handshake requirements.

• P2450 / Loki / Shield 2 platform fit: These models run the same power rail and use an identical connector pinout. The BMS on each expects the same charge termination voltage and protection thresholds, so one cell covers all three variants without modification.
• Bench tested on actual hardware: We cycled this cell through the P2450 charge IC and confirmed the BMS accepted the new cell, completed a full charge cycle, and engaged both over-current and over-temperature cutoff at correct thresholds during high-draw load testing.
• Fuel gauge calibration after install: After fitting this cell, run one complete wireless play session to automatic low-battery cutoff before recharging. The Shield's fuel gauge IC sets its empty reference point against the first full discharge cycle — skipping this step causes the percentage display to read inaccurately for weeks.

Why the Shield P2450 fuel gauge jumps or reads wrong after a cell swap

The P2450 uses a coulomb-counting fuel gauge IC that builds its discharge model against the cell it first calibrated on. When a new cell goes in, the IC still references the old cell's internal resistance curve, so percentage readings can jump, stall, or drop suddenly. This is not a faulty battery — it is a recalibration lag. One full discharge cycle from 100% to automatic cutoff resets the reference curve. After that cycle the gauge tracks accurately.

Shield console shows charging but percentage barely moves in the first session

The Shield's charge IC applies a conservative current limit when it detects a new cell — this is a built-in protection behaviour, not a fault with the replacement. The controller interprets the unfamiliar internal resistance profile as a flag to throttle input current. Charge rate normalises after one complete charge-discharge cycle. If the percentage still stalls after two full cycles, confirm the charge port connector is fully seated and check for 5V input at the port.