12V Guru – add a 2nd caravan battery

Concern to a 12V Guru

Possibly one item that your particular guru may prefer to deal with is the addition of a caravan that is second to a preexisting caravan 12V system that presently just has one home battery pack. Just What shall we think about whenever evaluating the ability to accept the additional battery pack, selecting the brand brand new battery pack, as well as the fitting and wiring? For reference caravan, may i recommend a Jayco Silverline?

All the best, Bob Murray

12V Guru answers

Thanks for the question. Numerous RVers find one battery is not adequate to service their needs, specially on a van such as for instance a Silverline where there are lots of devices.

Get in on the batteries in parallel

To own a two battery pack set-up, you will need to join the batteries in ‘parallel’ in which the terminals that are positive linked together basically utilizing the negative. Use dense cable such as 8.4mm2 (AWG 8) and quality battery lugs. a synchronous setup increases the ability of one's system in Amps and maintains the nominal voltage at 12V DC, that is exactly what your van requires. Therefore, two 12V batteries that are 100Ah in https://hookupwebsites.org/tinder-review/ this fashion offers you 200Ah capability at 12V.

Maximise the worthiness of the large system

To increase the worthiness when starting a bigger system, make certain you have actually two batteries associated with the chemistry that is same age and also make. Various battery pack chemistries such as for instance AGM, gel, calcium have different charging voltage requirements and you also would not have the two batteries precisely charged to do something as you. Likewise, a deep cycle battery in synchronous with a beginner (cranking) battery pack are affected as you will find construction distinctions internally within these batteries.

Batteries naturally degrade in the long run and their ability decreases, so an adult battery pack having a new one will not offer maximum performance. Aligning these facets will let the battery to work as you big bank along with cells into the condition that is same.

Failing that, an unbalanced battery pack bank may cause the batteries or their interior cells not to ever get a straight number of the present as a result of various internal opposition, which leads to different parts of battery pack bank receiving different quantities of present. For example, a bank composed of a battery that is three-year-old with age and new a battery won’t fee evenly over the different phases of asking. Which means state of charge (SOC) will change whether or not the new battery pack is the exact same brand name and chemistry.

Therefore simply speaking, to update your battery system to a higher Amp ability it would be most readily useful to purchase 2 to 3 brand new batteries of the identical brand and chemistry, utilize the more substantial quality cable, fuse accordingly and make certain your charger is effective at fulfilling your needs. To make sure the new battery pack bank will be effective at being completely charged think about a DC-DC charger or the addition of the setup that is solar.

Lithium setup choice

Needless to say, there is always the choice of updating the body towards the latest Lithium setup Jayco has simply released, which will imply that with only 1 battery pack you can have double the Amp capacity, longer life, fewer than half the extra weight and a smaller recharging time—but it comes down at a high price!