... liquid charge;2.no memory, no need to discharge battery use, suitable for circuit design;3.by high partition, adsorption and strong ... environmental requirements, ease of use,6.the use of lead-calcium alloys, battery self-discharge is very low,7.easy storage, less ... ;8.using ABS plastic shell and valve technology for safe use.ApplicationThe lead acid battery 4v2ah can be used in LED, mosquito killer ...