BT-901 Honeywell Voice A700x Replacement Battery 3.7V 2500mAh

Honeywell Voice A700x / Voice A700 — 3.7V Li-ion Replacement Battery (BT-901)

This 3.7V, 2500mAh Li-ion cell replaces the BT-901 battery in the Honeywell Voice A700x and Voice A700 mobile computers. Both handheld units are used in warehouse voice-picking and inventory operations. The pack slots directly into the same battery bay and runs the same 3.7V logic and radio rails the device expects.

• Voice A700x and A700 compatibility: Both models share the same battery bay geometry, 3.7V voltage rail, and BT-901 BMS handshake. The communication protocol between the pack and device firmware is identical across both, so one replacement covers either unit without modification.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a Voice A700x unit, monitoring the BMS communication handshake and cell voltage response under combined scan-trigger and wireless radio draw. The BMS reported a clean state-of-health flag throughout and held stable voltage under simultaneous inrush from the imager and the radio module.
• First-shift preparation on the A700x: After installing this pack, seat the scanner in its charging cradle for a full charge cycle before the shift begins. The scan trigger draws its highest inrush current when the cell voltage is near minimum, and a fully pre-charged cell prevents the BMS from tripping on that first burst on the pick floor.

Cradle showing a charging error on a new BT-901 pack

New packs sometimes arrive with surface oxidation on the gold contact pads, and the cradle's charge controller reads elevated contact resistance as a fault rather than a low-state cell. This is a contact issue, not a failed battery. Wipe the pack's contact pads with a dry cloth, reseat the pack firmly in the cradle until the latch clicks, then wait 30 seconds — the charge controller re-polls and clears the error once resistance drops below its threshold. If the error persists, check the cradle contacts for debris before drawing any other conclusion.

Scanner losing wireless connection during a rapid scan burst

On the Voice A700x, the imager trigger and the wireless radio fire simultaneously during fast barcode capture — the combined inrush can pull cell voltage down momentarily if the pack is below roughly 3.5V. When voltage sags past the radio module's minimum threshold, the wireless stack drops its association to the access point and must re-authenticate. The fix is to ensure the pack enters each shift above 3.6V — read the battery status in the device's system settings before handing the unit to a picker. A pack consistently dropping connection during burst scanning has likely entered capacity fade and needs replacement rather than a different access point channel.