One way of saving money but still being able to charge the aux to 100% is to use a VSR AND solar connected to the aux. Would never buy it again).Įnerdrive's is a 140amp VSR, & Victron's is a 120amp VSR.Īs far as solid state vs Solenoid - I have no idea - have only ever used Redarc VSR's - both 100A & 200A. (Some might claim Projecta is good, but I need my electrics to be reliable 24/7, & have had a poor experience with Projecta stuff. Enerdrive & Victron both do VSR's which are cheaper than Redarc & I'd pick them anyday over Supercheap's rebadged Chinese rubbish or Projecta crap. If you are going to buy a VSR - stick with a good brand. With a DC to DC charger, you will have your 100Ah aux battery fully charged to 100%, giving you 50Ah to use at camp - getting on for double it's useable capacity to keep you beer cold for longer. if you want a good life from the battery. That means only 30% (30Ah on a 100Ah battery) useable capacity. If charging via a solenoid/VSR the battery wil never get charged beyond 80%. Saving a bit more now for a dcto dc charger will not only save you money in the long run, it will make camp life better!īe aware that with any lead acid based battery (AGM Gel, or wet batteries) the 'useable capacity' of the battery (if you want it to last) is around 50% of it's stated capacity. Obviously if you need a new aux battery every year or two, the long term cost is way more than the cost of a dc to dc charger. Depending on charging & use a deep cycle battery can last from 12 months to 10+ years. The charging is done by the alternator, & if you are charging auxillary deep cycle battery or batteries, it/they will never fully charge giving you less capacity to use at camp, & most folk in this situation end up running the aux battery lower than is good for battery life & as a result have to replace it far sooner.
They are just a switch to parallel the crank & aux battery. I'm guessing the Ridge Ryder and Projecta units are solid state, I can't find any internal photos.OK, but understand that VSR's or ignition switched solenoids are not actually chargers. How do these solid state (?) type devices compare to the solenoid type relays?
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