Akerstroms BC82 Crane Remote Compatible Battery 7.2V 1500mAh

Akerstroms BC82 / MC83 Series — 7.2V Ni-MH Replacement Battery (919097-000)

This is a 7.2V, 1500mAh Ni-MH replacement for the Akerstroms 919097-000 battery pack. It fits the BC82, BC92, MC83, MC93, and compatible models in the same crane remote control family. Capacity is taken directly from the product specification — 10.8Wh.

• BC82 / BC92 / MC83 / MC93 platform fit: These remotes share the same 7.2V battery bay, connector pinout, and charge termination logic. The Ni-MH chemistry matches the original delta-V cutoff used by the Akerstroms charging dock — swapping to a different chemistry would defeat the charge termination signal and risk overcharge.
• Bench tested on actual hardware: We cycled this cell through the Akerstroms docking charger and monitored charge termination. The BMS accepted the delta-V signal correctly on the first cycle and the remote powered on without error flags.
• Monthly charge during crane downtime: Ni-MH cells self-discharge at roughly 1–2% per day. A crane remote sitting unused for six to eight weeks can drop low enough that the charger dock sees the cell as defective and refuses to initiate a charge cycle. Run a charge once per month during any idle period.

Solenoid activation causing power dropout on the BC82 remote

When a crane solenoid or relay fires, it pulls a short inrush current spike through the remote's output circuit. A partially depleted Ni-MH cell has higher internal resistance than a full one, and that spike can pull cell voltage below the remote's brownout threshold — even if the battery indicator still shows green. This looks like an intermittent fault or a dead remote, but it's a voltage-sag issue. Start each shift with a fully charged battery, and if dropout persists on a fresh cell, check that resting voltage is at or above 8.4V before committing the remote to a lift cycle.

Remote shows low-battery warning immediately after fitting a new cell

Ni-MH cells ship at storage voltage — typically 1.0–1.1V per cell, which puts a 6-cell 7.2V pack around 6.0–6.6V. The BC82 remote reads this as a low or discharged battery and flags accordingly. This is not a fault with the cell. Place the battery in the Akerstroms dock and run a full charge cycle before first use — resting voltage should read 7.8–8.4V before the remote is put into service.