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Some (basic) help needed on cable

jeddles
in Accessories

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Hi,

I want to DIY recreate something like these trolleys:

https://www.geewiz.co.za/long-run-ups-inverter-battery/178350-3000va-mecer-axpert-pure-sine-inverter-2x-100ah-lithium-battery-trolley-12-hour-battery-life-kit-3000w-with-lithium-battery-3000-cycles.html

 

2x LifePO4 batteries (12V, 100Ah, max. discharge rate 1C/100A) connected in parralel

I have RCT Axpert VM 1000W (inverter/charger) unit

 

What I need help with:

1. what cable size? Geewiz reckons 25mm on all their units...do I need to go 35mm? the batteries will sit next to each other and the ups on top of the trolley.

2. why does the Geewiz not include any fuzes/circuit breakers? should I add one? what size?

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