• These two relays are master switches for my 24 and 12V systems and when we are travelling are - through necessity - permanently on. I did some testing and found they draw approx 165mA each when in use. This might seem inconsequential but when extrapolated can be an eye-opener - it was for me, anyway.

    We normally travel each day when out and about but usually 'camp' from somewhere late afternoon to mid morning the following day, usually a period of around 17hrs. In that time it's costing us almost 6A just to hold the relays in. Now, because we travel each day we've never really succumbed to huge battery capacity or auxiliary charging solutions so our 24V battery capacity is comparatively small. As such, 6A is just about 6A more than I'd like to be losing for no good reason. I'd much rather that 6A be available for the compressor fridge.

    Even worse, though I never intended our truck to be used for shows, I have been to a few and parking up late Thursday to Sunday afternoon would see the relays suck 24A. Ouch.

    And so, I've tweaked them to enable manual override. With the knurled screws 'out' the relays still operate just as Durite intended. Once the relays are switched on though, I can now tighten the knurled screws in and lock the contacts closed. When that's done, turning the relays off saves all the power previously required just to activate the coils. From now on I'll 'lock' them when setting off on a break and 'unlock' them on our return.

    It seems like a decent work-around and though it's a bit of a bodge it's saved me from having to disturb my original wiring looms. Lesson learned: if I built again, I'd utilise purely manual switches instead…

Tweaks and fixes are an ongoing part of the project. This series of pages form a blog - of sorts - and is intended to give a flavour of the day-to-day realities of living with the truck as issues crop up and tweaks and fixes progress. Many of the posts eventually end up getting written up properly and included in the main body of the Trip Truck site; so if you think you have read any of the older posts somewhere else, you almost certainly have.

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