Haze sealed 6 and 12v lead acid batteries hsc series haze hsc12 5 a sealed 12v lead acid battery that is completely maintenance free the haze hsc12 5 is optimised for security and alarm systems cctv emergency energy lighting systems marine or medical equipment capacity is quoted at the 20 hour rate at 25degc down to 17v per cell haze 12v 5ah sla battery hsc12 5