XTOOL TP200 Diagnostic Scanner Compatible Battery 3.7V 2500mAh

XTOOL TP200 / PS65 / PS70 Series — 3.7V Li-Polymer Replacement Battery (KPL604193)

This 3.7V, 2500mAh Li-Polymer battery replaces the OEM cell in the XTOOL TP200, TP150, PS65, and PS70 automotive diagnostic scanners. It matches the original KPL604193 and KPL6065100 part numbers. Swap it when the original cell no longer holds a charge through a full vehicle scan session.

• TP200 / PS65 / PS70 platform fit: These models share the same 3.7V single-cell Li-Polymer architecture, connector pinout, and BMS handshake protocol — which is why one cell fits the entire range. The BMS reads cell voltage and temperature from a shared register; mismatched cells trip a protection fault on boot.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the TP200 platform. The BMS accepted the cell without a protection trip, charging terminated cleanly at 4.2V, and the scanner booted without a low-battery warning from a full charge state.
• Data export before battery removal: Export all saved vehicle profiles and fault code logs before pulling the battery. The TP200 stores active session data and vehicle profiles in RAM backed by the main cell — once voltage drops to zero during a swap, that data is gone. Use the scanner's export function to save to SD card or paired device first.

OBD scanner not powering on after battery swap

A freshly installed Li-Polymer cell often ships below the TP200's minimum boot threshold — typically under 3.5V. The scanner's BMS will refuse to power the system if cell voltage sits in that range, which looks identical to a dead battery or a failed swap. Connect the scanner to a charger immediately after installing the replacement and let it charge for at least 20 minutes before attempting to power on. Once the cell climbs above 3.6V, the BMS releases the boot lock and the scanner starts normally.

Wireless connection dropping mid-scan session

The TP200's Bluetooth module draws a surge of current each time it transmits data to a paired device. When battery voltage sags below roughly 3.5V under load, the wireless radio loses enough power to drop the link mid-session — even though the scanner screen may still show a usable charge indicator. This happens because the display and the radio run on different voltage rails, so the screen stays on while the radio cuts out. Keep the battery above 50% charge during extended wireless scan sessions to stay clear of the sag threshold.