Abitron Mini Crane Remote Compatible Battery 3.6V 2500mAh

Abitron Mini / Mini EX2-22 — 3.6V Ni-MH Replacement Battery (KH68300990.A)

This is a 3.6V, 2500mAh Ni-MH rechargeable battery for the Abitron Mini and Mini EX2-22 wireless crane remote controls. It replaces OEM part KH68300990.A directly. When the original cell degrades or fails to hold charge, this unit restores full transmitter function without replacing the entire remote.

• Mini and Mini EX2-22 platform fit: Both remotes share the same 3.6V single-cell Ni-MH bay and connector pinout. The BMS in each unit expects a Ni-MH charge profile — using a Li-ion cell in this housing will trigger a charge fault. This replacement matches that chemistry requirement exactly.
• Bench tested on actual hardware: We cycled this cell through the Abitron Mini charge dock and confirmed the BMS accepted the charge profile without error flags. Voltage settled at 4.2V peak post-charge and the remote transmitted without dropout during solenoid activation sequences.
• Storage protocol for infrequent crane use: If the remote sits unused for more than three weeks, connect it to the dock for a top-up charge before returning it to service. Ni-MH cells self-discharge at roughly 1–3% per day — a remote left in a cabinet for two months may have too little voltage remaining to initialize the transmitter circuit on power-up.

Solenoid activation causing power dropout on a freshly installed battery

When a crane solenoid or relay fires, the inrush current spike can briefly pull the supply voltage below the transmitter's operating threshold. A Ni-MH cell at partial charge has higher internal resistance and sags more under that load than a fully charged cell does. The result is a momentary dropout — the remote cuts out mid-operation and may require a power cycle. Always charge this battery to full before putting the remote into service, and verify the terminal voltage reads at or above 4.0V before critical lifts.

Remote showing low-battery indicator immediately after cell swap

A new Ni-MH cell ships at storage voltage — typically 3.6–3.8V — not at full charge. The Abitron Mini's onboard fuel gauge reads this as a low-state cell and flags it accordingly. This is not a defective battery. Connect the remote to its dock and allow a full charge cycle to complete before assessing the cell's actual capacity. After a full charge, the low-battery indicator should clear and the remote should power on normally.