Psion WA3006 Barcode Scanner Compatible Battery 3.7V 2000mAh

Psion 7525 / 7527 Series — 3.7V Li-ion Replacement Battery (WA3006)

This is a 3.7V, 2000mAh Li-ion battery for the Psion 7525, 7525C, and 7527 handheld barcode scanners. It fits the same bay and connector as the original WA3006, WA3020, and WA3025 packs. If your terminal is shutting down mid-shift or the cradle is flagging a low-charge warning, this is the direct swap.

• 7525 / 7525C / 7527 platform fit: These models share the same 3.7V single-cell architecture, battery bay dimensions, and BMS handshake protocol — so one pack covers the range without modification.
• Bench tested on actual hardware: We cycled this pack through the Psion charging cradle and verified BMS communication, charge acceptance, and scan-trigger inrush handling across multiple charge and discharge cycles.
• First-shift prep for pick-and-pack: After installing, seat the scanner in its cradle and run a full charge before the first shift. Scan trigger inrush is highest when the cell is near minimum, and a depleted new pack can cause false BMS trips on the first burst of scanning.

Cradle showing a charging error on a new pack

Psion cradles read battery state through the dock contacts before initiating a charge cycle. If those contacts have oxidation or debris, the cradle registers a handshake failure and throws a charging error — even with a new pack installed. This is not a battery fault. Wipe the gold contacts on both the battery and the cradle bay with a dry cloth, reseat the scanner firmly, and check that the charge indicator activates within 10 seconds.

Scanner losing wireless connection during rapid scan bursts

The 7525 draws from the same cell for both the wireless radio and the scan trigger. During rapid barcode scanning, the combined inrush from the imager firing and the radio polling can pull the cell voltage below the BMS threshold momentarily — dropping the wireless link. This typically happens when the battery is below 20% charge. The fix is straightforward: keep the pack above 30% during intensive scanning runs and avoid letting it discharge fully on the floor.