TecMate OptiMate Lithium 0.8A Battery Optimiser (SAE) Recommended for LiFePO4 12V lithium batteries from 3Ah to 50Ah Microprocessor, 7 stages, fully automatic 100-240V 50-60 Hz 0.23A @ 100V; 0.15A @ 230V Running cost of less than one pound per year The OptiMate Lithium 0.8A uses the proven OptiMate interactive charging programme in an affordable package to charge and maintain 12V Lithium batteries. OptiMate Lithium 0.8A is totally automatic and fully protected against user errors. There are no switches. Affordable, compact, intelligent and forgiving of errors, OptiMate Lithium 0.8A is the perfect tool for regular or long-term maintenance of 12V Lithium batteries.