the service life of iron phosphate battery has been greatly improved. under standard charging conditions, the service life of iron phosphate battery can reach more than 10 years large capacity. under the same volume, the storage capacity of lithium iron phosphate battery is 2 ~ 3 times higher than that of carbonic acid battery. iron phosphate is safe. as we all know, ordinary lithium batteries and polymer batteries will swell when they are used for a long time the characteristic of lithium phosphate battery is that it can be used as soon as it is flushed and it will never affect its power storage capacity.syi