Batteries are an integral part of all radio controlled models, and Futaba have now produced what is possibly the most effective receiver battery checker available today. Able to check 4.8, 6.0 or 7.2 volt batteries, the BR-2000 has a fan cooled adjustable load facility able to apply a load of between 1 and 3 Amps onto the battery being checked, to accurately measure the voltage under load