Lithium ion battery 12V 20Ah. The ideal caravan battery. Perfect for caravan movers. Clean and maintenance-free battery technology. Long life with 1500 cycles (charge/discharge). With only 4.3kg including charger very light. Due to low self-discharge the wintering of the caravan is unproblematic. The 20Ah capacity can be taken to 100%. Current rapid tapping with up to 90Ah. Charger 12V/3A, input voltage 100-240V.