Retrofitting second battery in the camper

More capacity, greater autonomy, more freedom. To get there, on the retrofitting of a second onboard batteries. Often the producers have provided space for a second vehicle battery.

Anyone who suffers from chronic lack of energy and goes to the doctor, gets usually prescribed magnesium. For motorhomes with similar symptoms contrast helps lead, in serious cases, lithium. Many motorhome owners want to improve the self-sufficiency of their Gefährts by increasing the battery capacity.

One should first check whether the battery catering space for a bigger or a second Stromsilo is present in the immediate vicinity. The retrofitted battery should the existing match in capacity, type and age. Ideally, it also comes from the same manufacturer. Never should combine batteries of different ages and level of usage. Because batteries wear out, and their capacity decreases. Therefore, the purchase of a larger battery is usually the least expensive variant for capacity expansion.

A check of the performance of the battery charger provides information about whether this is still adequately dimensioned. A general rule is that the output of the charger should be at least 10 percent of the nominal battery capacity, plus the capacity of combustible during charging consumers. If one wants to replace a 100 Ah battery pack with a 200, you need a charger at least 20 A capacity.

If you switch to the battery and the battery type, the charger should be able to load with the characteristic required for this type. If a more powerful charger is needed, this must be connected by the manufacturer, with correspondingly thicker cables. Again, there is a rule of thumb for calculating the cable cross-section of the 12-V environment. Amperage: 3 = cable cross-section. This applies to cable lengths up to three meters. For each additional meter you should add 2mm².