Leisure battery for all types of caravan and motor home including a 110ah leisure battery and an 85amp battery. Leisure batteries perform two separate functions. They produce a supply of 12V DC power and also smooth out any irregularities in the output from the built-in charger. It's important to buy a quality leisure battery which can fulfil both of these tasks well. Caravan batteries are used in a different way to car batteries. Leisure batteries need to be able to produce power for extended periods, until almost flat, and then be recharged until it is topped up. This is called deep-cycling and quality leisure batteries such as ours are manufactured to perform well under these conditions. For example, our batteries have glass fibre separators inside the battery cells. This unique plate construction increases electrical capacity, improves deep cycle capability and provides greater resistance to vibration to extend the life of the battery.