Using oxygen recombination technology: maintenance-free
Pb-Ca-Sn alloy for plate grids: less gassing and less self-discharging
High quality AGM separator: extend cycle life and prevents micro short circuit
ABS material: increases the strength of battery container. (Flame-retardant ABS is optional)
High purity raw material: ensures low self discharge rate
Silver-coated copper terminals, brass insert terminals and lead terminals improve the electric conductivity