Tecmate TM-275 Optimate Lithium 4S

10-step 12.8V 10A sealed battery saving charger and maintainer. The fastest professional battery charger for 12.8V/13.2V. (LiFePO4/ LFP) performance/ race batteries. Includes a TUNE mode for diagnostics or updating programming. Automatically and safely charges, tests and maintains. LiFePO4/ LFP or deep cycle batteries. Ampmatic charge control adjusts current to match battery size and condition. Low-volt start of 0.5V. Pushbutton-activated BMS wakeup mode safely wakes. battery out of sleep mode or low discharge. Smart, 24/7 interactive maintenance prevents discharge from connected circuitry and guarantees more battery power and longer battery life.