Stable quality, high reliability Security Certification : UL ,CE ,ISO export to NorthAmerica,Europe,Spain,Australia,Indonesia battery FeaturesSecurity sealNo free acidAir leakage system & Self-sealingLong life to useStable quality, high reliabilitySecurity Certification : UL ,CE ,ISO etc. APPLICATION: Stand-by/Back-up power application TelecommunicationsSolar powered systemElectronic switching ...