Eve ef6516 400550750mah lithium battery cells 36v pcb pin eve 237102 this 550mah lithium battery cell from eve is based on lithium thionyl chloride li socl2 technology and offers a high operating voltage high minimum voltage during pulsing lower self discharge while non flammable with a temperature range of 55 to 85degc the battery is ideal for applications such as back up systems real time clocks measuring instruments alarms and safety equipment emergency transmitters and e