> Characteristics HTL Series High Temperature Long Life Deep Cycle Gel BATTERY Voltage: 6V, 8V, 12V Capacity: 6V200Ah~6V420Ah, 8V170Ah~8V200Ah, 12V14Ah~12V300Ah Designed floating service life: 15~20years @25�°C/77�°F > Summary for High temperature deep cycle solar gel battery Newest in 2016, CSPOWER patented High Temperature Solar Deep Cycle long life Gel battery, best choice to work in hot/cold temperature sites and maintain long service life over 15years.