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What is the difference between these two breakers? they are both 50A https://www.ebay.com.au/itm/223090583778?hash=item33f13c28e2:g:cTgAAOSw~AhbZ71s https://www.ebay.com.au/itm/154531097329?hash=item23fac56af1:g:5IMAAOSwD2JhCKWg

I am looking at this setup for my second solar build: https://www.mobile-solarpower.com/2000-watt-24v-solar-system.html I was looking at using two 170aH batteries, would this change the amperage size of the charge controller that is needed? I'm also not sure what solar panel to get, does it...

Is a combiner box only needed when solar panels are connected in parallell? If solar panels are connected in series thereby increasing the voltage but the current remains the same will it cause problems with the charge controller due to the higher voltage? eg 3, 300W solar panels in series...

I am looking to connect two 12V 170aH batteries in parallel. To my understanding in parallel this would yield 12V and 340ah. To connect the two batteries in parallel how do I figure out what size cable to use? This system will be able to deliver 34A for 10 hours, 68 Amp for 5 hours. How do I...

if electrons are negatively charged and they travel from negative to positive, why does a circuit breaker to protect an AC inverter go on the positive terminal, won’t the electrons get to the AC inverter along the negative wire? If anyone understands this I can’t figure it out, I get that...

I have a giantz battery box and a 140Ah battery. I noticed the battery box has 8AWG cables on the inside for connecting to the termninals of the battery. Each cables is 32cm long at a total length of about 0.64m. Should I change the 8AWG to a thicker cable for the 140Ah battery? Different...

125Ah, 12V battery A battery box with DC outputs and usb outputs A circuit breaker fuse (to use from battery to 1500W Ac inverter) 300W solar panel Do I need a diode from the solar panel to battery, or do all solar panels already have them so the current won’t flow back into the solar...