12V Guru – add a 2nd caravan battery pack

12V Guru – add a 2nd caravan battery pack

Concern to a 12V Guru

Perhaps one item that your particular guru may love to deal with is the addition of a caravan that is second to a preexisting caravan 12V system that presently has only one home battery. exactly What shall we give consideration to whenever evaluating the capacity to accept the additional battery pack, selecting the brand new battery pack, plus the fitting and wiring? For reference caravan, may a Jayco clover dating app is suggested by me Silverline?

All the best, Bob Murray

12V Guru answers

Thank you for the concern. Numerous RVers find one battery is not adequate to service their demands, specially for a van such as for instance a Silverline where there are lots of appliances.

Join the batteries in parallel

To possess a two battery set-up, you will have to join the batteries in ‘parallel’ where in fact the good terminals are connected together basically with all the negative. Utilize cable that is thick as 8.4mm2 (AWG 8) and quality battery pack lugs. a synchronous setup increases the ability of one’s system in Amps and keeps the nominal voltage at 12V DC, which can be exactly what your van needs. So, two 12V 100Ah batteries joined up with this way offers you 200Ah capability at 12V.

Maximise the worth of a system that is large

To increase the worth whenever creating a bigger system, make certain you have actually two batteries associated with chemistry that is same age and also make. Different battery pack chemistries such as for instance AGM, gel, calcium have different charging voltage needs and also you would not obtain the two batteries precisely charged to do something as you. Likewise, a deep period battery in synchronous with a beginner (cranking) battery are affected as you can find construction distinctions internally in these batteries.

Batteries obviously degrade in the long run and their capacity decreases, so an adult battery pack with a brand new one will perhaps not provide maximum performance. Aligning these factors will permit the battery pack to use as you large bank with all cells when you look at the exact same condition.

Failing that, an unbalanced battery pack bank can cause the batteries or their interior cells never to get a level quantity of the existing as a result of different interior resistance, which leads to various areas of the battery bank getting various quantities of current. For instance, a bank composed of a three-year-old battery degraded with age and brand brand new a battery won’t fee evenly throughout the different phases of recharging. And so the state of charge (SOC) will be different regardless of if the battery that is new exactly the same brand name and chemistry.

Therefore simply speaking, to update your battery pack system to a higher Amp ability it would be most readily useful to purchase two to three brand new batteries of the identical brand name and chemistry, utilize the weightier quality cable, fuse accordingly and make sure your charger is effective at meeting your needs. To make sure the new battery pack bank will be with the capacity of being completely charged look at a DC-DC charger or even the addition of a setup that is solar.

Lithium setup choice

Needless to say, often there is the option of updating the body to your latest Lithium setup Jayco has simply released, which may imply that with only 1 battery pack you might have double the Amp capacity, longer life, fewer than half the weight and a smaller billing time—but it comes down at a high price!