12V Guru – add a caravan battery that is second

12V Guru – add a caravan battery that is second

Concern up to a 12V Guru

Maybe one item that your particular guru may prefer to deal with is the addition of the caravan that is second to an existing caravan 12V system that presently has only one house battery. Exactly just What shall we give consideration to whenever assessing the capacity to accept the extra battery pack, selecting the brand new battery, plus the fitting and wiring? For guide caravan, may a Jayco is suggested by me Silverline?

All the best, Bob Murray

12V Guru answers

Thank you for your concern. Numerous RVers find one battery is not enough to service their needs, particularly for a van such as for instance a Silverline where there are numerous devices.

Join the batteries in parallel

To possess a two battery set-up, you need to get in on the batteries in ‘parallel’ where in actuality the positive terminals are linked 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 ability of the system in Amps and maintains the nominal voltage at 12V DC, which can be exactly what your van needs. Therefore, two 12V 100Ah batteries joined this way offers you 200Ah capacity at 12V.

Maximise the worthiness of the system that is large

To increase the worthiness whenever creating a bigger system, make certain you have actually two batteries associated with the chemistry that is same age while making. Various battery chemistries such as for instance AGM, gel, calcium have different charging voltage needs and you also could not obtain the two batteries precisely charged to behave as you. Likewise, a deep cycle battery in synchronous with a starter (cranking) battery pack are affected as there are construction distinctions internally during these batteries.

Batteries obviously degrade with time and their capability decreases, so a mature battery pack with a brand new one will likely not provide performance that is optimum. Aligning these facets will enable the battery to use as you big bank along with cells into the condition that is same.

Failing that, an unbalanced battery pack bank can cause the batteries or their interior cells not to ever get a level level of the present because of the different interior opposition, which leads to some other part of the battery pack bank receiving various amounts of current. As an example, a bank composed of a battery that is three-year-old with age and new a battery won’t cost evenly over the different phases of asking. Therefore the state of fee (SOC) will be different whether or not the brand new battery pack is exactly the same brand name and chemistry.

Therefore simply speaking, to update your battery pack system up to a higher Amp ability it would be best to purchase 2 to 3 new batteries of the identical brand name and chemistry, make use of the more substantial quality cable, fuse accordingly and make certain your charger is effective at fulfilling the needs you have. To make sure your brand-new battery pack bank will be with the capacity of being fully charged think about a DC-DC charger or even the addition of the setup that is solar.

Lithium setup choice

Needless to say, there’s always a choice of upgrading one’s body towards the latest Lithium setup Jayco has simply released, which may signify with just one battery pack you could have twice as much Amp capacity, longer life secret benefits, not even half the extra weight and a smaller asking time—but it comes down at a high price!