Rechargeable batteries

The console runs off electricity, but the controllers, if remote, may be powered by batteries.  Batteries are regarded as highly polluting.  This competing factor involves supplying rechargeable batteries and a battery re-charger as standard with the supply of the original gaming devices. 

•   At level 1, the batteries last 1 hour and have to be completely drained before they can be recharged.

•   At level 2, the batteries last 2 hours and also require complete draining before they can be recharged.

•   At level 3, the batteries last for 4 hours and do not require complete drainage before recharging;

•   At level 4, 8 hours and no drainage required.

•   At level 5, 12 hours with similarly no drainage necessary.