... ISO/TS16949/ SASO.SONCAP 4.long service minibus battery,truck battery,common dry charged battery:maintenance needed, dilute sulphuric acid needed.lead- ... 260*2102931.2Tips:When you use a new dry charged battery,please charge it by a charger for 30 minutes ... in battery plate. And 30 minutes is enough to soak battery plate.Certification:ISO9001,ISO14001,ISO/TS16949,CE,SASO.SONCAP etc mini bus battery