AJC-C4.5SAJC-6 V 4.5 Ah-sealed.VRLA Battery
We shopped numerous places for this battery. We couldn't find it and when we finally did,it was so expensive it was cheaper to buy a new unit, until we stumbled on BatteryClerk website. The price was right, delivery was prompt, and it fits our light perfectly. We will shop again at BatteryClerk when we need additional batteries.