Honeywell BT-700-1 Compatible Battery 3.7V 4400mAh

Honeywell Talkman T5 / BT-700-1 — 3.7V Li-ion Replacement Battery (136020805B)

This 3.7V, 4400mAh Li-ion pack replaces the OEM battery in the Honeywell BT-700-1, A500, Talkman T5, and Talkman T5m handheld barcode scanners. These devices run in warehouses, retail floors, and logistics hubs where scan uptime directly affects throughput. The cell chemistry and connector match OEM spec so the BMS handshake completes normally on first boot.

• Talkman T5 / BT-700-1 platform fit: These models share a common voltage rail at 3.7V and the same dock contact layout, which means one cell pack works across the BT-700-1, A500, T5, and T5m without adapter modification or firmware conflict.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on the BT-700-1 platform and confirmed the BMS communicates state-of-charge correctly to the host device — the battery indicator reads accurately from full down to low-battery cutoff.
• First-shift prep on Talkman devices: After installing this pack, seat the scanner in its cradle and let it complete a full charge cycle before pulling it for pick-and-pack. Scan trigger inrush is highest when the cell is near minimum charge, and a pre-charged pack prevents false BMS cutoffs during the first heavy scan burst of the shift.

Cradle showing a charging error after fitting a new pack

Honeywell cradles verify dock contact resistance before initiating a charge cycle. If the gold contacts on the battery base or the cradle pins have oxidation or debris, resistance rises above the dock's threshold and the cradle flags a fault instead of charging. This is not a faulty cell — it's a contact issue. Wipe the battery contacts and cradle pins with a dry lint-free cloth, reseat the scanner firmly, and the charging indicator should switch to active within 30 seconds.

Scanner losing wireless connection during rapid scan bursts

On the Talkman T5 and BT-700-1, the wireless radio and the scan trigger draw current simultaneously during a fast burst scan sequence. If the cell voltage sags below the radio module's minimum operating threshold under that combined load, the device drops its wireless link mid-session. This happens most often when the pack is below 20% charge. Keep the pack above that level during active shifts — the scanner's low-battery alert at roughly 3.4V is the cue to cradle the device before the next pick cycle begins.