Posted on 31/10/2018 22:05
Not strictly a caravan question but a related topic nonetheless. I want to be able to charge a battery mounted on my car trailer and it would seem that a VSR on the trailer, connected to pin 10 (ignition controlled power supply) and then to the trailer battery, would do the trick. Some possibilities are the Samlex BS100 and the seemingly similar Durite 727-33.
Has anyone any experience of these, or other suitable VSRs?
Posted on 02/11/2018 07:47 by SimonWJPerhaps it's their much higher amperage rating which I don't really need just for battery charging?
Posted on 02/11/2018 12:04
And the fact that they are approx. 10 times more expensive. Towsure also stock one similar to the Ring product which would do the job.
Posted on 02/11/2018 16:07
Thanks again, Vulcan. The one you've linked to at Towsure seems to be simply a variation on the Ring one and indeed the similarly specified Maypole one. At least the Towsure one doesn't use the old 12S pin designations!
Since I don't need 100 amp capacity in the relay I may just try one like one of the ones linked to but with just a single 12v feed and see how it works. I double checked pin 10 on my towbar electrics and it doesn't drop out when cranking but naturally enough the voltage drops to around 10 volts while starting but very quickly comes up to over 14 volts. So any of these relays should work ok.
SimonWJ