12V Guru – add a caravan battery that is second

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Concern up to a 12V Guru Possibly one item that the guru may love to deal with is the addition of the 2nd caravan battery pack to a preexisting caravan 12V system that presently only has one household battery pack. Just What shall we think about whenever evaluating the ability to accept the additional battery [...]

Concern up to a 12V Guru

Possibly one item that the guru may love to deal with is the addition of the 2nd caravan battery pack to a preexisting caravan 12V system that presently only has one household battery pack. Just What shall we think about whenever evaluating the ability to accept the additional battery pack, choosing the brand new battery pack, plus the fitting and wiring? For guide caravan, may a Jayco is suggested by me Silverline?

All the best, Bob Murray


12V Guru answers

Many thanks for the concern. Numerous RVers find one battery is not adequate to service their needs, specially for a van such as a Silverline where there are numerous appliances.

Get in on the batteries in parallel

To own a two battery pack set-up, you need to join the batteries in ‘parallel’ where in actuality the good terminals are connected together basically utilizing the negative. Utilize dense cable such as 8.4mm2 (AWG 8) and quality battery pack lugs. a configuration that is parallel the capability of the system in Amps and keeps the nominal voltage at 12V DC, which will be exactly what your van needs. Therefore, two 12V 100Ah batteries joined in this way gives you 200Ah ability at 12V.

Maximise the worth of a big system

To maximise the worth whenever starting a more substantial system, make certain you have actually two batteries associated with the chemistry that is same age and then make. Various battery chemistries such as for instance AGM, gel, calcium have different charging voltage requirements and also you would not have the two batteries precisely charged to clover dating app ad girl do something as you. Likewise, a cycle that is deep in synchronous having a beginner (cranking) battery are affected as you can find construction distinctions internally in these batteries.

Batteries obviously degrade with time and their ability decreases, so an adult battery pack having a new one will perhaps not offer performance that is optimum. Aligning these facets will enable the battery to use as you big bank along with cells when you look at the condition that is same.

Failing that, a battery that is unbalanced will cause the batteries or their interior cells to not get a level quantity of the existing because of the various interior resistance, which leads to various areas of battery pack bank getting different amounts of current. For instance, a bank composed of a three-year-old battery degraded with age and brand new a battery won’t cost evenly across the different stages of recharging. And so the state of fee (SOC) will change even though the brand new battery is exactly the same brand name and chemistry.

Therefore simply speaking, to upgrade your battery system up to a higher capacity that is amp would be most readily useful to purchase 2 to 3 brand new batteries of the same brand name and chemistry, make use of the weightier quality cable, fuse accordingly and make sure your charger is effective at fulfilling your needs. To make certain your new battery pack bank is then effective at being completely charged look at a DC-DC charger or even the addition of the setup that is solar.

Lithium setup choice

Needless to say, there is always the option of updating one’s body to your latest Lithium setup Jayco has simply released, which will signify with only 1 battery pack you could have twice as much Amp capacity, longer life, fewer than half the extra weight and a shorter asking time—but it comes down at a high price!

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