Product Feature; (1)Maintenance-free operation. There is no need to check specific gravity of the electrolyte or add Water to battery during float service life. (2)Low self-discharge rate, small internal resistance. (3)The unique construction and sealing techniques of the battery, add the ABS plastic crust that guarantee leak proof operation in and position with no adverse effect to capacity or service life. (4)With our high quality lead-tin-calcium alloy grids, it has a long usage life and deep discharge recoverability. (5)No pollution and no harm.
