... LED indicating the system of charging, overcharge, power full, power low, over-discharge, over load, out short circuit, load on/off, etc ... , charge return voltage)Lower voltage indicate12.0V, ×2/24VOver discharge voltage11.1V(no load)- real-time modified voltage by the ... discharge rate; 2/24V;Over discharge return voltage12.6V, 2/24VControl modePWM charge ...