This series of batteries with high capacity, internal resistance, self-discharge, discharge and good platform, widely used in electric water heaters, rice cookers, timer, electric toys, car audio, portable voice recorder, tax tanker, the cash register machine, solar radio, IC card phone, LED lamps, small program-controlled switches, the taxi meter, electronic instrumentation and microcomputer displays and other electronic industries. 20mAh, 40mAh, 60mAh, 70mAh, 80 mAh, 160mAh, 250 mAh, 350 mAh, 500 mAh battery all kinds of single and combined use old and new friends welcome.