Solarexploits Posted June 6, 2022 Share Posted June 6, 2022 On the solar controllers I have, they have 6 connections, + & - from batteries, + & - from panels & then a further + & minus which are labelled load (shows an icon of a light bulb) In the Chinglish instructions there is no mention of what the load terminals do, (they show a schematic of them supplying a light as an example) I have my supply to the inverter running direct from my main batteries, I can't see any difference if I measure voltage at load terminals as opposed to if I check voltage at the battery terminals. What is their purpose. do they offer some further protection to that 24V supply? Is there any advantage to connecting to load rather than batteries? Link to comment Share on other sites More sharing options...
Wil Posted June 6, 2022 Share Posted June 6, 2022 Doesn’t this act as a backup ‘essential loads’ in the event of a power outage? How else are you getting your battery power out of the batteries again- is there a separate DC-AC inverter for this? Link to comment Share on other sites More sharing options...
dpmiller Posted June 6, 2022 Share Posted June 6, 2022 The Load terminals have deep discharge protection- they'll switch off at 10.7V or so (on the 12V version) Link to comment Share on other sites More sharing options...
Solarexploits Posted June 6, 2022 Author Share Posted June 6, 2022 2 hours ago, dpmiller said: The Load terminals have deep discharge protection- they'll switch off at 10.7V or so (on the 12V version) Ah! Ok, that makes sense, I'm building in a separate system which automatically kicks the battery charger in should the voltage fall that low (21.4V in my case as I run 24V system). Itho' would not ever expect it to drop that far unless we had an exceptionally bad set of weather conditions, at which point I'd be switching loads off from the batteries anyway. I don't leave any essential loads like fridge/freezer on the batteries if we're away for any extended period Link to comment Share on other sites More sharing options...
Solarexploits Posted June 8, 2022 Author Share Posted June 8, 2022 On 06/06/2022 at 11:27, Wil said: Doesn’t this act as a backup ‘essential loads’ in the event of a power outage? How else are you getting your battery power out of the batteries again- is there a separate DC-AC inverter for this? I take power direct from the battery terminals at 24V, this powers a 24V inverter to give 230V off grid ac 1 Link to comment Share on other sites More sharing options...
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