Autec Modular MK Crane Remote Replacement Battery 7.2V 700mAh

Autec Modular MK / Plus MK — 7.2V Ni-MH Replacement Battery (MBM06MH)

This is a 7.2V, 700mAh Ni-MH replacement battery for Autec wireless crane and hoist remote controls, using OEM part number MBM06MH. It fits the Modular MK, Plus MK, Funkfernsteuerung Modular MK, Funkfernsteuerung Modular MJ, and several additional variants on the same platform. Dimensions are 78.28 × 52.40 × 15.48mm — verify against your existing cell before ordering.

• Modular MK platform compatibility: The Modular MK and Plus MK share a common 7.2V power rail and the same physical connector format. All listed variants accept the MBM06MH cell pack without modification to the housing or contact plate.
• Bench tested on actual hardware: We ran this pack through full charge cycles and simulated solenoid activation loads. The BMS held stable through repeated inrush events and cut off cleanly at the low-voltage threshold without tripping prematurely under normal relay switching.
• Monthly charge during idle periods: Crane remotes often sit unused between jobs for weeks or months. Ni-MH cells self-discharge faster than Li-ion — at around 20–30% per month. Charge this pack once a month during storage or it may drop below the BMS recovery threshold and refuse to initialise on the next job.

Solenoid activation causing power dropout on a fresh battery

When the crane remote triggers a solenoid or contactor relay, the inrush current spike can momentarily exceed what a partially charged or aged cell can deliver. The BMS reads this as an overcurrent event and shuts down the output rail — the remote goes dark mid-operation. This is not a faulty BMS; it is the protection circuit doing its job. Always charge the MBM06MH fully before first use and before any lift cycle where solenoid activation is expected.

Remote shows low battery immediately after installing a new cell

Replacement Ni-MH packs ship at storage voltage — typically 60–70% state of charge — not at full capacity. The remote's voltage monitoring circuit reads this as a depleted pack and flags the warning. This is not a fault with the battery. Connect the Autec charger and run a full charge cycle before use. The low-battery indicator should clear once the pack reaches approximately 8.4V at the end of charge.