Point Mobile PM550 Compatible Battery 550-BTSC 3.7V 6800mAh

Point Mobile PM550 — 3.7V Li-ion Replacement Battery (550-BTSC)

This 3.7V, 6800mAh Li-ion battery replaces the OEM 550-BTSC pack in the Point Mobile PM550 rugged handheld terminal. The PM550 is used in warehouse, logistics, and retail environments for barcode scanning and mobile data collection. This replacement matches the original voltage, capacity, and connector configuration.

• PM550 platform fit: The PM550 uses a single-cell Li-ion pack with a proprietary connector and an integrated BMS that communicates battery state to the device firmware. This replacement carries the same 550-BTSC identification so the handshake clears without a firmware flag.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on PM550 hardware. The BMS held cutoff voltage correctly at both ends, and the device reported charge state accurately through all stages without dropping into error mode.
• First-shift conditioning on the PM550: After installing, seat the scanner in its cradle and run a full charge cycle before the first pick-and-pack shift. The scan trigger draws a short inrush current spike — if the cell starts near minimum, that spike can trip the BMS prematurely on the first scan burst of the day.

Cradle showing a charging error on a new 550-BTSC pack

A charging error on a new pack almost always comes down to contact resistance at the dock, not a fault in the battery itself. The PM550 cradle uses gold-contact pogo pins that pick up dust and oxidation in active warehouse environments. High resistance at those pins causes the cradle controller to read an abnormal charge curve and flag an error. Wipe the battery contacts and the cradle pins with a dry cloth, reseat the pack firmly, and the error clears in most cases within the first few seconds of reconnection.

Scanner losing wireless connection during rapid scan bursts

During a rapid scan burst, the imager and the wireless radio draw simultaneously — the combined inrush can pull the cell voltage below the BMS's lower threshold for a fraction of a second. The BMS responds by briefly cutting power to protect the cell, which drops the wireless session. This happens most often when the battery is below 20% charge. Keep the pack above that level during high-frequency scanning shifts, or rotate to a charged spare when the device indicator drops into the bottom quarter.