... compensation winding technology,small-wave distortion. 3.Adopt single-chip control thyristor,switch conbination timely compensation regulation,achieve a ... voltage regulator process,no moument power off. 5.Single-Chip control charge,charging performance stability,finished charging for 5 ... 7.No-block charging with controller extend facility. 8.Battery pack for normal working hour>8hour. 9.Low radiation, ...