12v 100ah lifepo4 batterie with 10 years lifetime.4000+cycles. it is an ideal choice for outdoor camping power supply and simple indoor installation. built-in bms protects the cells from overcharging, deep discharge, overload, overheating and short circuit, and low self-discharge rate. longer service life. its service life can up to 10 years, lead-acid's service life only 3 years. lightweight. its weight is only 1/3 the weight of lead acid batteries. more stable and safer. the chemical of lifepo4 battery is very stable. so it's very safer than lead acid battery. this lithium iron phosphate batteries the superior high temperature & storage performance make lifepo4 the most suitable one for 12v li-ion battery positive material..syi