About this replacement
Ikusi 2303692 / BT06K — 4.8V Ni-MH Replacement Battery
This is a 4.8V 600mAh Ni-MH battery for the Ikusi 2303692 crane remote control system. It fits the 2303692 transmitter and is also compatible with ATEX and RAD-TF / RAD-TS series transmitters among other Ikusi remote units. Capacity is 600mAh (2.88Wh) — matching the OEM specification.
- ATEX, RAD-TF, and RAD-TS transmitter fit: These transmitters share the same 4.8V Ni-MH cell configuration, connector pinout, and BMS handshake protocol — so one battery pack covers the full range without any modification.
- Bench tested on actual hardware: We ran this pack through full charge and discharge cycles on Ikusi transmitter hardware. The BMS maintained stable voltage under solenoid activation loads, with no cutoff trips during relay switching events.
- Monthly charge cycle for idle remotes: Ikusi crane remotes often sit unused between jobs. Ni-MH cells self-discharge at roughly 1–2% per day — leave a remote on the shelf for two months and the pack may drop below the transmitter's minimum turn-on voltage. Charge the battery once a month during any idle period to keep it above that threshold.
Solenoid activation causing power dropout on a freshly installed battery
When you press a hoist or travel command, the transmitter fires a solenoid or relay inside the crane. That activation draws a short inrush current spike — sometimes 3–5× the steady-state draw. A Ni-MH cell at partial or storage voltage cannot supply that spike without sagging below the transmitter's brownout threshold. The result is an immediate power dropout mid-command. A full charge before first use eliminates most of these events because internal resistance drops as the cell reaches capacity. If dropouts continue on a fully charged pack, the cell's capacity has degraded and the battery needs replacement.
Remote shows low-battery warning immediately after new battery is fitted
A new Ni-MH pack ships at storage voltage — typically around 4.0–4.2V for a 4-cell pack — not at full charge. The Ikusi transmitter reads this as a low-battery condition and flags the warning straight away. This is not a fault with the battery. Connect the pack to the Ikusi charger and run a full charge cycle first. Once the pack reaches 4.8V nominal, the warning clears and the transmitter operates normally.