NBB 2.260.1020 Crane Remote Replacement Battery 7.2V 2000mAh

NBB 2.260.1020 / Nano Series — 7.2V Ni-MH Replacement Battery (2.250.1000)

This is a 7.2V 2000mAh Ni-MH replacement battery for NBB crane remote controls. It fits the 2.260.1020, Nano-L, Nano-L SMJ, and Nano Funkfernsteuerungen series wireless remotes used to operate overhead cranes and hoisting equipment. Voltage and capacity match the original specification exactly.

• Nano and 2.260.1020 platform fit: These remotes share the same 7.2V cell stack, connector pinout, and BMS handshake across the Nano series variants. One battery covers multiple units in the same fleet without modification.
• Bench tested on actual hardware: We cycled this cell pack through full charge and load discharge on a Nano-L remote. The BMS accepted the charge profile without fault codes, and relay activation held voltage above the low-battery cutoff threshold under repeated actuation.
• Infrequent-use charging schedule: Crane remotes often sit unused for weeks between jobs. If the battery drops below 1.0V per cell during storage, the BMS may refuse to charge. Connect the battery to the cradle charger at least once per month during idle periods to keep cells above the recovery threshold.

Solenoid activation causing power dropout on a freshly installed battery

When a crane remote fires a solenoid or relay, the inrush current spike can exceed the BMS output threshold — even on a battery that reads full voltage at rest. This causes the remote to drop out mid-command as the BMS interprets the surge as a fault condition. A cell pack with degraded capacity makes this worse because internal resistance rises and voltage sag deepens under load. If dropout occurs only during relay actuation, verify the battery is fully charged before concluding the unit is faulty — a resting voltage of 8.5V or above on a 7.2V Ni-MH pack indicates a full charge.

Remote showing low-battery indicator immediately after fitting a new cell

A new Ni-MH battery ships at storage voltage — typically 7.0–7.4V for a 6-cell 7.2V pack — which falls below the remote's normal operating threshold. The remote reads this as a low or depleted battery and flags the warning before the first use. 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 powering on the remote. Once the pack reaches 8.4–8.6V, the low-battery indicator will clear.