Our lifepo4 batteries 6.4V are widely used in popular electronic products such as Bluetooth Headsets, Portable Speakers, consumer products, emergency lights, GPS, digital players, solar & wind energy storage, electronic auto and E-buses. Type: lithium battery lifepo4 The use of Lithium-ion batteries in emergency lighting products is increasing as they have several advantages over other types of rechargeable batteries. A lithium iron phosphate (LFP) battery is more efficient than a NiCd battery as LFP batteries lose less charge over time and also less energy in the form of heat during their charging process. LFP batteries also have a longer life span than NiCd batteries.