Urovo P8100 Barcode Scanner Compatible Battery 3.85V 8400mAh

Urovo P8100 — 3.85V Li-ion Replacement Battery (HBLP8100)

This 3.85V, 8400mAh Li-ion battery replaces the original pack in the Urovo P8100 handheld barcode scanner. It fits the P8100 directly, using the same OEM part number HBLP8100. Voltage and capacity match the stock specification, so the scanner's BMS accepts the pack without modification.

• P8100 platform fit: The P8100 runs a single-cell 3.85V architecture with a BMS that authenticates pack voltage and monitors cell temperature. This replacement uses the same voltage rail and connector pinout, so the BMS handshake completes on first insertion without recalibration.
• Bench tested on actual hardware: We cycled this pack through repeated scan-trigger and wireless polling loads. The BMS held cutoff thresholds correctly under combined radio and imager draw, with no false low-voltage trips during burst scanning sequences.
• First-shift prep for pick-and-pack: Place the scanner in its cradle for a full charge cycle before putting it into rotation. Scan-trigger inrush current peaks when the cell is near minimum charge — a fully charged cell on the first shift prevents false BMS trips that can flag the pack as faulty before it has been properly conditioned.

Cradle showing a charging error on a new HBLP8100 pack

The P8100 cradle reads pack state through pogo-pin contacts on the battery base. If those contacts carry oxidation or residue from handling, the cradle reports a fault rather than starting a charge cycle. Wipe the gold contacts on both the battery and the cradle dock with a dry lint-free cloth, then reseat the scanner firmly until it clicks. If the error clears, the fault was contact resistance — not a failed cell.

Scanner losing wireless connection during rapid scan bursts

The P8100 draws from the same cell for both the imager and the wireless radio simultaneously. During a rapid scan burst, the combined inrush can cause a brief voltage sag that the BMS interprets as a low-cell event, dropping the radio to protect the cell. This is more common when the pack is below 30% state of charge. Keep the pack above 40% during high-frequency scanning shifts to prevent the sag from crossing the BMS trip threshold.