Simple DIY Home Battery Backup

System Components

SOK Battery 100Ah 48v Server Rack Battery

SOK Battery | 100Ah 48v

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Victron 48v Multiplus-II Inverter Charger 3000va 120V

Very efficient and very reliable inverter. Comes pre-programed when purchased through Current Connected!

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Victron 48V MultiPlus-II UL1741 3kVA 120V Inverter 35A Charger

This is the exact same inverter as the standard Multiplus II except it is UL listed. If you need to get an inspection, you will want this version. One difference between the two is it has a larger wiring compartment, which is worth the extra $70 in my opinion.

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MegaFuse Holder + 2 Fuses (58V 125A-300A)

Great quality fuse for medium size projects, comes with holder and 2 fuses. I used 125A for this project.

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Custom Made | Red + Black Pure Copper Battery/Inverter Cables

Good pricing on quality cables made to order cable and lug sizes. I used 1/0 for this project.

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Battery Cable Lugs 5/16″ or 3/8" | 6AWG - 4/0

Quality lugs, choose the size and quantity you need. I used 1/0 Battery Cable Lugs 5/16″ for this project.

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Fully Loaded 25kWh SOK 48v Server Rack Battery Kit

Bundle & Save

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Optional Materials & Sources

UV Resistant Black Zip Ties

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1/0 AWG 10 Feet Red + Black Welding Battery Cable kit

This is a great kit to make your own cables if you have a crimping tool.

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Ground Wire Solid Bare Copper 6 AWG 20 FEET

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125A CNN fuse

Good for small systems. High enough voltage limit for 48V systems.

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CNN/ANL fuse holder

Holds CNN or ANL fuses

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Q150 50-Amp Single Pole Type QP Circuit Breaker

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Q120 20-Amp Single Pole Type QP Circuit Breaker

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Siemens QA120AFCP 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker

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Tools

If you are interested in the tools I use here is a link.

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Disclaimers:

This video is for information purposes only, and does not constitute professional advice. Solar systems can and do involve dangerous electrical connections. If you do not have experience with electrical wiring, please seek professional support.