Our batteries are AGM type lead batteries. Because it contains no liquid, an AGM battery is maintenance-free, i.e. no liquid needs to be topped up. The cells are also encapsulated, which means that the battery is very safe as it does not emit any gas and can only swell instead of exploding. An AGM battery is perfect for both starting and consumption, but it should not consume more than 60% of the total capacity, after which a new charge must take place. A well-maintained AGM lasts about 400-600 charge cycles before its life is used up and you notice a deterioration in the battery. An AGM battery must never be left discharged, as it will be damaged.