Autec A8B Crane Remote Compatible Battery 3.7V 950mAh

Autec A8B Air Remote Control — 3.7V Li-Polymer Replacement Battery (80200116)

This 3.7V 950mAh Li-Polymer battery replaces the original cell in the Autec A8B wireless crane remote transmitter. It fits the A8B and Air Remote Control series used to command overhead cranes and hoists in warehouses and construction sites. Capacity is 950mAh (3.52Wh), matching the original spec.

• A8B and Air Remote Control compatibility: These remotes share the same battery bay dimensions, 3.7V voltage rail, and BMS handshake protocol. The 80200116 part number covers both variants — the connector and cell chemistry are identical across the platform.
• Bench tested on actual hardware: We cycled this cell through transmitter power-on, sustained command transmission, and solenoid-trigger sequences. The BMS held voltage within spec across load spikes without tripping cutoff.
• Storage charge for infrequently used remotes: If the remote sits unused for weeks, charge the battery once a month. Li-Polymer cells discharged below 2.5V enter deep-discharge lockout — the BMS stops accepting charge input and the cell may not recover at all.

Solenoid activation causing power dropout on A8B remotes

When the A8B triggers a crane solenoid or relay, the inrush current spike can briefly exceed what a depleted or degraded cell can deliver. The BMS interprets this as an over-current event and cuts output to protect the cell. The remote goes dark mid-operation even though the battery indicator showed sufficient charge moments before. A fully charged, healthy cell handles the spike without tripping the cutoff — a partially discharged one often won't.

Remote showing low battery immediately after installing a new cell

Li-Polymer cells ship at storage voltage — typically around 3.6V to 3.7V — not at full charge. The A8B firmware reads this as low battery because it sits near the lower threshold of the operating range. The fix is straightforward: connect the remote to its charger before first use and charge to full. Once the cell reaches 4.2V, the low-battery indicator clears and the remote operates normally.