Epson TM-P60 Replacement Battery 7.4V 2600mAh Li-ion

Epson Mobilink TM-P60 / TM-P80 — 7.4V Li-ion Replacement Battery (LIP-2500)

This 7.4V, 2600mAh Li-ion battery replaces the LIP-2500 in the Epson Mobilink TM-P60 and TM-P80 portable thermal printers. It also fits the M196D and TMP60/TMP80 variants sharing the same battery bay and connector. Voltage and capacity match OEM spec exactly — no adapter or modification needed.

• TM-P60 and TM-P80 compatibility: These models share the same 7.4V battery bay, connector pinout, and BMS handshake protocol. The LIP-2500 form factor — 70.30 × 38.30 × 20.70mm — fits both without modification. Alternate OEM references C32C831091, NP-500, and NP-500H all cross to this cell.
• Bench tested on actual hardware: We cycled this battery through charge and discharge on the TM-P60 platform. The BMS negotiated correctly with the printer's charge controller, held steady voltage through continuous print jobs, and triggered low-battery warnings at the expected threshold without premature cutoff.
• First-deploy print sequence: After installing and fully charging, run five consecutive test receipts before field deployment. The TM-P60's paper feed motor draws a brief high-current pulse at start — this sequence lets the BMS log the current profile for the new cell and prevents false low-voltage shutdowns during the first real job.

Why the TM-P60 refuses to power on after weeks in storage

Li-ion cells self-discharge during storage. If a TM-P60 sits unused for several weeks, the battery can drop below the BMS minimum recovery threshold — typically around 2.5V per cell for a 7.4V pack. At that level, the BMS locks out the discharge circuit as a protection measure and the printer shows no response at all. Connecting the printer to a charger for 15–30 minutes usually lets the BMS trickle-charge the cell back above the recovery threshold, after which a normal charge cycle completes. If the printer still shows no signs of charging after 30 minutes on the charger, the original battery has likely failed and needs replacement.

Faded or streaky print output on a charged battery

The TM-P60's thermal print head relies on a stable voltage supply to maintain consistent head temperature across the print line. When a degraded or partially charged battery sags under the motor and head load, head temperature drops mid-line and output appears faded or uneven — even though the battery indicator shows charge remaining. This is voltage sag, not a paper or head fault. Charge the battery fully to 8.4V and retest; if print quality recovers, the battery is the cause. If the fault persists on a fully charged new battery, check the thermal head for debris or partial contact failure.