Meiller 0000 9084 422 Crane Remote Replacement Battery 3.7V

Meiller 0000 9084 422 — 3.7V Li-Polymer Replacement Battery

This 3.7V, 3000mAh Li-Polymer battery replaces the Meiller OEM part 0000 9084 422 (also cross-referenced as 422-BS-01944) in Meiller crane remote control units. It powers the wireless handheld remotes used to operate overhead cranes and hoisting equipment on industrial and construction sites. Swap it when the original cell can no longer hold charge or the remote stops responding mid-shift.

• Crane remote compatibility: Meiller crane remotes in this family share a 3.7V single-cell Li-Polymer architecture with a matched BMS handshake. The connector pinout and cell dimensions (68 × 36 × 10mm) align directly with the OEM housing, so the cell seats and makes contact without modification.
• Bench tested on actual hardware: We cycled this cell under simulated solenoid-activation loads and confirmed the BMS holds rail voltage without dropout during inrush events. Protection thresholds for over-discharge and over-current tripped at expected levels.
• Idle-period charge cycle for crane remotes: Crane remotes often sit unused for weeks between jobs. Charge this battery once a month during idle periods — Li-Polymer cells discharged below 2.5V enter BMS deep-discharge lockout and may not recover once a charger is connected.

Solenoid activation causing power dropout on a new battery

When a crane remote triggers a solenoid or relay, the inrush current spike can momentarily collapse the voltage rail if the BMS interprets the surge as an over-current fault. This trips a protective cutoff and the remote drops out — even on a fresh cell. The Meiller 0000 9084 422 cell is rated to handle the current envelope of these remotes, but if the battery has not been fully charged before first use, it operates at storage voltage and its available current headroom is reduced. Charge the cell fully to 4.2V before putting the remote back into service.

Remote showing low battery immediately after swapping in a new cell

Li-Polymer cells ship at storage voltage — typically around 3.6–3.7V — to slow self-discharge during warehousing. The Meiller remote's fuel gauge reads this as a low or partial charge state and flags it immediately. This is not a fault with the cell. Connect the remote to its charger and bring the cell to a full 4.2V before use. The low-battery indicator will clear once the cell reaches an adequate state of charge.