Feacture: 1)control byCPU,out put with AVR,Pure Sine Wave 2)Super wide Input voltage: 90V----280VAC,Low empty- ... )Humanity design,charge automatism,when no commercial power,the unit can transfer battery power autonatically ,can make all inductive load. ... 8) LCD panel display, easy operation, LED illustration of battery power, charging and operation status. 9)Protections of overcharge, overdischarge, ...