About this replacement
Point Mobile PM80 — 3.7V Li-ion Replacement Battery (80-BTEC)
This is a 3.7V, 2800mAh Li-ion battery for the Point Mobile PM80 handheld mobile computer. It fits the PM80 directly, using OEM part numbers 80-BTEC and 80-BTSC. Voltage and capacity match the original specification exactly.
- PM80 platform fit: The PM80 runs a single-cell 3.7V architecture. The BMS in this pack is matched to that voltage rail and uses the same connector and handshake protocol as the original, so the device powers on and reads battery status correctly.
- Bench tested on actual hardware: We cycled this pack through repeated scan-burst and wireless polling sequences on the PM80 platform. The BMS held stable under combined radio and imager draw without false low-voltage cutoffs.
- First-shift preparation for pick-and-pack use: After installing the pack, seat the scanner in its cradle and run a full charge cycle before the shift starts. The scan trigger inrush current peaks when the cell is near minimum charge — starting with a full cell prevents BMS trips on the first heavy burst of the day.
Cradle showing a charging error on a new pack
Charging docks read the pack through spring-loaded contact pins. If the contact pads on the battery or dock have oxidation or debris, contact resistance rises and the dock reports a fault instead of initiating a charge cycle. Wipe the gold contact pads on the battery with a dry cloth, then reseat the scanner firmly in the cradle. If the error clears, the pack is fine — the dock was rejecting the handshake due to resistance, not a faulty cell. A successful handshake shows the dock LED switching from fault to charging within five seconds of reseating.
Scanner dropping wireless connection during rapid scan bursts
The PM80 pulls current for both the imager and the wireless radio simultaneously during a fast scan sequence. On a degraded or deeply discharged cell, that combined draw causes a brief voltage sag below the radio module's minimum operating threshold, which drops the Wi-Fi or Bluetooth link. This is not a radio fault — it is a cell voltage problem. Charge the pack to full before use and check that resting voltage after a charge cycle reaches 4.1V–4.2V; if it doesn't, the cell has lost capacity and the pack needs replacing.