Point Mobile PM450 Replacement Battery 450-BTEC 3.7V 6800mAh

Point Mobile PM450 — 3.7V Li-ion Replacement Battery (450-BTEC)

This is a 3.7V, 6800mAh Li-ion replacement battery for the Point Mobile PM450 handheld barcode scanner. It fits the PM450 directly and matches the OEM part number 450-BTEC. Capacity is 25.16Wh — same spec as the factory pack.

• PM450 platform fit: The PM450 uses a keyed battery bay with a specific connector layout and BMS handshake. This pack replicates the OEM voltage rail and communication protocol, so the device recognises it on insertion without prompting a fault code.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a PM450 unit. The BMS held stable across scan trigger bursts and Wi-Fi polling intervals, with no mid-cycle cutoffs or erratic state-of-charge readings on the device screen.
• First-shift preparation: After installing, seat the scanner in its cradle and run a full charge cycle before putting it into pick-and-pack rotation. The scan trigger draws the highest inrush current when the cell is near minimum — a fully charged pack on the first shift prevents the BMS from tripping on that initial load spike.

Cradle showing a charging error on a new pack

A charging error on a fresh pack is almost always a contact resistance issue, not a fault with the battery or dock electronics. The PM450 cradle reads pack state through the same gold pogo contacts it uses to charge — if those contacts have oxidation or debris, the dock throws an error before current even flows. Wipe the contacts on the battery and the cradle with a dry cloth, then reseat the pack firmly until it clicks. If the error clears, charge proceeds normally; if it persists, check that the cradle firmware is current, as older versions can misread a new pack's initial voltage as out-of-range.

Scanner losing Wi-Fi connection during rapid scan bursts

On the PM450, simultaneous scan trigger activation and Wi-Fi transmission create a combined inrush that briefly sags the voltage rail. If the cell voltage is already low, this sag can cross the BMS low-voltage threshold, causing the radio to drop before the cell actually hits cutoff. The result is a momentary disconnection mid-burst — users often blame the access point, but the cause is on the battery side. Keep the pack above 20% charge during high-frequency scanning runs, and check the device's reported battery voltage in Settings — if it reads below 3.5V under load, swap the pack before the next shift.