High power / excellent abuse tolerance Super Safety with built-in integrated BMS High energy efficiency: the yield is more than 95% LCD/Monitor/Bluetooth functions are optional 12V 50AH/80AH/100AH/120AH/200AH are optional Super long life: 2500 cycles at 100% DOD,5000 cycles at 80% DOD 3 years warranty,extendable to 5 years