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  • How to Size Your Off-Grid Solar Batteries

    Hello Robert, your response above seems like you could point me in the right direction. I am looking to put together an off-grid solar system for a small shed. I have been researching on how to go about getting the proper set up to make it as efficient and safe as possible and hope you could further help me. I will be using 2 - 4ft LED shop lights @ 40 watts, which won't be used often as I will only be in there mostly during the day. Most power tools will be DeWalt 20V cordless therefore using at least 2 battery chargers. Also, if possible, I would like to be able to run a 30 gallon air compressor. This is not a necessity as I could reach an outlet with an extension cord but would be very convenient. I have come across this system: https://www.renogy.com/renogy-100-watt-12-volt-ec...see more »Hello Robert, your response above seems like you could point me in the right direction. I am looking to put together an off-grid solar system for a small shed. I have been researching on how to go about getting the proper set up to make it as efficient and safe as possible and hope you could further help me. I will be using 2 - 4ft LED shop lights @ 40 watts, which won't be used often as I will only be in there mostly during the day. Most power tools will be DeWalt 20V cordless therefore using at least 2 battery chargers. Also, if possible, I would like to be able to run a 30 gallon air compressor. This is not a necessity as I could reach an outlet with an extension cord but would be very convenient. I have come across this system: https://www.renogy.com/renogy-100-watt-12-volt-eclipse-solar-premium-kit/#tab_prd-specs. Would I need the 200 watt system? And what size battery and size inverter do you recommend?

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