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Connecting load and battery on a solatr controller
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<blockquote data-quote="PeterS" data-source="post: 484403" data-attributes="member: 31611"><p>Thanks again guys. The batteries are AGM (the data sheet here <a href="https://www.alpha-batteries.co.uk/media/catalog/product/l/a/lagm-130.pdf" target="_blank">https://www.alpha-batteries.co.uk/media/catalog/product/l/a/lagm-130.pdf</a>). It says the initial charge for cycling can be set to run at 14.4-15v then standby charging at 13.5-13.8v. The graph at the bottom is a bit confusing, but i think it says a standard charge voltage of 14.1, with boost of 14.4, and a max of 14.7v. The charger has the following profiles for the constant current (bulk) charge (lead = 14.6v, sealed = 14.4v, gel=14.2v) then drops to 13.8 for constant voltage/float for all 3, so think maybe any would be okay, though let know if you think a profile is best. The charger also applies an extra 0.2v over the bulk charge voltage for 60min per month.</p><p></p><p>I chose two separate batteries over the larger one as the discharge profile was slightly better for these batteries when half the current was required. A 24v or 48v system would be ore efficient i guess but all the appliances (toilet, fridge, lights) are 12v (didn't know other voltage systems were possible really). i'll maybe do a refit in the future, when it's time to change the batteries, and check the compatability of the appliances in the meantime.</p></blockquote><p></p>
[QUOTE="PeterS, post: 484403, member: 31611"] Thanks again guys. The batteries are AGM (the data sheet here [URL="https://www.alpha-batteries.co.uk/media/catalog/product/l/a/lagm-130.pdf"]https://www.alpha-batteries.co.uk/media/catalog/product/l/a/lagm-130.pdf[/URL]). It says the initial charge for cycling can be set to run at 14.4-15v then standby charging at 13.5-13.8v. The graph at the bottom is a bit confusing, but i think it says a standard charge voltage of 14.1, with boost of 14.4, and a max of 14.7v. The charger has the following profiles for the constant current (bulk) charge (lead = 14.6v, sealed = 14.4v, gel=14.2v) then drops to 13.8 for constant voltage/float for all 3, so think maybe any would be okay, though let know if you think a profile is best. The charger also applies an extra 0.2v over the bulk charge voltage for 60min per month. I chose two separate batteries over the larger one as the discharge profile was slightly better for these batteries when half the current was required. A 24v or 48v system would be ore efficient i guess but all the appliances (toilet, fridge, lights) are 12v (didn't know other voltage systems were possible really). i'll maybe do a refit in the future, when it's time to change the batteries, and check the compatability of the appliances in the meantime. [/QUOTE]
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Connecting load and battery on a solatr controller
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