JCB B40 Battery Box

The Battery Box provides an alternative power storage solution that can be positioned with any generator to significantly improve generator efficiency. 

Wherever there is an off-grid application with a fluctuating and low load demand; the generator can be turned off, saving fuel and reducing emissions. As it has zero emissions and no noise, the power pack can be used indoors or in sensitive applications. The maximum depth of discharge can be set at 50% to prolong battery health.

The JCB Battery Box is compatible with all sizes and makes of generator and with mains supply electricity, allowing it to be efficiently charged on site. Packaged in a robust steel canopy, the Battery Box delivers up to 7kVA continuous power output with a 20kVA peak and is available in both 50Hz and 60Hz configurations.


Compatible with all makes and models of generators – including competitor models
Can be charged from mains power
Can be connected to renewable power sources
Compact size reduces site footprint and enables ease of transport
Fork pockets as standard with optional 4 point lift
Sealed and maintenance free batteries

Many off-grid applications place varying demands on their diesel generators during different periods of the day. This leads to huge inefficiency and wasted fuel as the generator often runs at a fraction of its capacity. 

During periods of ‘light loading’, the generator is effectively oversized, using a much larger amount of fuel, and burning it more inefficiently. Wasting money and potentially causing damage to the generator.

By adding a large battery pack into the system, energy can be stored during periods of high load and then released during periods of low load, allowing the generator to be switched off. Reduced generator use, reduces fuel and servicing costs dramatically; increasing fuel efficiency whilst reducing CO2 emissions too.

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