![]() ![]() Cycle Life and Deep Cyclesĭepending on the type of technology used in the leisure battery, the number of cycles it can withstand before failure varies.įurthermore, how deep the cycles typically are (how discharged the battery gets during use) will also dictate its usable life.Īgain as previously referenced, my post on leisure batteries covers cycle life and deep cycles. In the winter months, particularly, a leisure battery at a very low state of charge can even freeze! If that does happen, the leisure battery could be permanently damaged. The most important points to remember are to not leave the leisure battery at a low state of charge as it can lead to damage. You’ll also be removing the leisure battery and using a suitable portable battery charger around once every six weeks. Therefore, ideally, before you test the voltage and state of charge, you will isolate the battery.Īlso, in an ideal world, you’ll want to check the state of charge once a month. However, when these batteries are empty or fail, they pull power from the main leisure battery. The reason being, even if you believe all your 12V appliances are off, there may still be something pulling power.įor instance, security trackers do have their own small 12V batteries. Now, ideally, to get the most accurate reading on the leisure battery’s state of charge, you need to separate the battery completely from your caravan or motorhome. The voltage reading the battery returns will indicate the state of charge. However, you can also use a portable voltage meter to test the state of charge. Most caravans and motorhomes have either an analogue or digital voltage meter as part of the master control panel. Checking Your Leisure Batteries State of Chargeīefore we discuss the various portable and built-in leisure battery options, we need to discuss how you actually check when your battery needs charging. Quick Note: Recently, I also became aware of caravan fridge problems while towing related to battery charging from some Euro 6 engine vehicles. However, they should only be used when the battery is isolated from the 12V appliances. Whereas a portable leisure battery charger can provide more power to the battery. Therefore, built-in chargers don’t provide an excessive amount of power which may damage those 12V appliances or lights. ![]() To quickly summarise the points made in the video above, a built-in leisure battery charger provides a maximum power of 13.8V, whereas portable leisure battery chargers will potentially provide up to 15V of power.īuilt-in leisure battery chargers have to provide power to the battery while 12V appliances are potentially in use. This quick video from Practical Caravan explains the differences between onboard/built-in and portable battery chargers for caravan and motorhome leisure batteries. The video below from practical caravan provides a good brief overview of the differences. Conclusions on the Best Leisure Battery Chargersįirst, it’s probably a good idea to discuss the differences between the on-board battery charger in your caravan or motorhome and a portable leisure battery charger.Numax 12V 10A – Fully Automated Charger.When Would You Use a Portable Leisure Battery Charger?.Pulse Charging Combats Battery Sulphation.Fully Automated Leisure Battery Chargers.Different Types of Portable Leisure Battery Chargers.Portable Caravan Leisure Battery Chargers.Checking Your Leisure Batteries State of Charge. ![]()
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