Each RV or motorhome is equipped with a special battery-powered installation during standstill. 12 or 24 volt batteries supply electricity to the 230 V voltage converter, thanks to which we can use all electrical devices – chargers for the phone, laptop, TV and many more.
When the engine is running, the batteries are recharged by the alternator. At a standstill, the system can be connected to an external 230 V power supply, which recharges the batteries and supplies all devices connected to the network at a given moment.
The installation of solar cells, which additionally recharges the batteries, is becoming more and more popular. Previously, gel batteries (lead-acid batteries) have been used mainly because of the low price at the cost of weight and size, however many manufacturers are now opting for lithium-ion or lithium-iron-phosphate batteries (Li-FePO4), which provide equally high discharging currents while reducing weight (up to 50%) and increasing capacity.
A huge advantage of lithium-ion batteries over traditional ones is the ability to make a battery in any shape.