Power-Sonic 12V Tab Sealed Lead Acid Battery, 12Ah

Lead-cadmium alloy accumulators. The electrolyte is bound in high-absorbent fibreglass wool that, with the ultrasound-welded ABS plastic casing, ensures the accumulators spill-free, wherever they are used.
The accumulators can provide very high discharge currents for short periods, while retaining their charge for very long periods. The accumulators' capacity is stated as the number of ampere-hours that can be provided in the course of 20 hours when the pole voltage falls from 2.1 V to 1.72 V per cell.