The main difference between an AGM and a LiFePO4 battery is that AGM - is the group of gel batteries and batteries with AGM (Absorbent Glass Mat) technology is called VRLA (Valve Regulated Lead). Compared to traditional batteries, AGMs have up to four times the lifespan and number of cycles. This is due to the use of the aforementioned fiberglass material in the production of these products. Lithium Iron Phosphate (aka LiFePO4) batteries. Its structure consists of four cells connected in series. Each cell operates at 3.2V, giving a total voltage of 12.8V. One of the most important elements of this type of battery is an Electronic Management System (BMS).