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How The Electrical System Works
The 230v mains system runs all household appliances such as the television, kettle, hairdryer etc. and the fridge. The 12v system runs all low wattage items such as water pumps, low voltage lighting etc. A battery is used for the 12v system. If a power cut occurred you will still have lights and pumped water so it is important to check the operation of the battery. If you have a transformer on board and are plugged into the mains the 230v from the mains goes through the transformer, is converted down to 12v, which is connected to the battery and keeps it charged. It is important to have a battery connected because the transformer on its own can deliver up to 15v. The battery regulates the supply of power as some of the electrical systems in the caravan are voltage sensitive and could be damaged. Also, if there was a power cut you would have no lights. This is important for the above reasons and is simple to do. If you use mains all the time and have a transformer you may not know if the battery is working normally. If your 12v system has stopped working it could mean your transformer has failed and the battery has gone flat due to normal use without charging. If you disconnect the mains lead, the lights and water pump should continue to work. If they don't, first check the main battery fuse which will be situated somewhere near the battery, if that is ok the battery needs to be checked. Leisure batteries need to be maintained during periods when the caravan is out of use otherwise their life span will be reduced. Regularly charge the battery at least once a month and, unless it is sealed, check the electrolyte (water) level frequently. Retain receipts to benefit from possible extended warranty. |
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