XTOOL PS80 Replacement Battery 7.4V 7200mAh Li-Polymer

XTOOL PS80 / X7 / EZ500 / i80 Pad Series — 7.4V Li-Polymer Replacement Battery (PL3769124 2S)

This is a 7.4V 7200mAh Li-Polymer replacement battery for the XTOOL PS80, X7, EZ500, and i80 Pad diagnostic scanners. It slots into the same battery bay as the original PL3769124 2S cell. Capacity figures are taken from our product data — 53.28Wh total energy storage.

• PS80 / X7 / EZ500 / i80 Pad platform fit: These four models share the same 7.4V two-cell Li-Polymer pack format, matching connector pinout, and BMS communication protocol — so one battery covers the full group without firmware or handshake conflicts.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on the PS80 platform. The BMS accepted full charge without fault codes, balanced both cells correctly, and held voltage within spec under sustained scanning load across multiple OBD sessions.
• Vehicle data before you pull the battery: Export all saved vehicle profiles and DTC logs to the XTOOL app or a connected PC before removing the original pack. On most portable XTOOL scanners, vehicle profiles sit in RAM backed by the main battery — swapping cells without exporting will wipe them.

Why the PS80 shows a blank screen after a battery swap

A freshly installed replacement pack — even one shipped at storage charge — can sit below the PS80's minimum boot voltage of approximately 6.8V. The display controller draws first, so the screen attempts to initialise before the CPU confirms power rail stability, resulting in a blank or flickering screen rather than a normal boot sequence. This is not a faulty unit. Connect the scanner to its OEM charger for at least 30 minutes before attempting to power on, which brings cell voltage above the boot threshold and allows the BMS to complete its initialisation handshake.

Wireless connection dropping mid-diagnostic session

The PS80's Bluetooth and Wi-Fi radios are among the highest-draw subsystems on the board. When battery voltage sags under load — typically below 7.0V on a degraded or partially charged cell — the radio module is the first subsystem the power manager sheds to protect the CPU and display. Technicians see this as the vehicle link dropping unexpectedly mid-session, often without a low-battery warning on screen. Keeping the pack charged above 50% before starting a long diagnostic session reduces radio voltage-sag events. If drops persist on a new battery, check that the connector is fully seated — a loose connection creates transient voltage dips that trigger the same radio cutoff.