About this replacement
Ravioli Joy / LNH650 — 3.6V Ni-MH Replacement Battery (NH650)
This is a 3.6V, 700mAh Ni-MH replacement battery for the Ravioli Joy crane remote control, identified by OEM part number NH650. It fits the Joy and LNH650 remote units used to operate overhead cranes and lifting equipment. Swap it in when the original cell no longer holds a charge or the remote stops responding mid-operation.
- Joy and LNH650 fit: Both models share the NH650 cell format — same 3.6V nominal rail, same connector pinout, and the same charge management circuit built into the remote's cradle charger. One replacement covers both units.
- Bench tested on actual hardware: We cycled this cell through the Ravioli cradle charger and monitored the charge profile. The BMS accepted the cell without error flags, and the remote powered on and held signal through repeated command inputs at full load.
- Storage charge for infrequent use: Crane remotes often sit unused between jobs or seasonal shutdowns. Charge this battery once a month during any idle period — Ni-MH cells left fully discharged for extended periods develop voltage depression, and the remote's charge circuit may not recover a cell that has dropped below its detection threshold.
Solenoid activation causing power dropout on a freshly installed battery
When a crane solenoid or relay fires, it draws a short inrush current spike that can exceed what a low-capacity or partially charged cell can deliver cleanly. The remote's internal circuit interprets the resulting voltage sag as a low-battery condition and cuts power to protect the electronics. This is why a new battery straight out of packaging can still cause dropouts — the cell ships at storage voltage, not full charge. Charge to full before any operational use, particularly before activating solenoid-controlled functions.
Remote shows low battery indicator immediately after new cell install
Ni-MH cells ship at approximately 50–60% state of charge to slow self-discharge during transit and storage. The Ravioli Joy remote reads cell voltage on startup, and a cell at storage voltage will trigger the low-battery indicator right away. This is not a faulty cell — it is an uncharged one. Place the battery in the cradle charger and run a full charge cycle before judging capacity. The indicator should clear once the cell reaches its nominal 3.6V resting voltage.