Lithium Battery Upgrade

[SilentService]

David, I really appreciate your help on this and have started putting everything together. One thing I came across during the installation was, where is the best place to connect the inverter cables? The bus bars or directly to the batteries?
Once again, thanks for your help!

Tim

[SolarPoweredRV]

David, I really appreciate your help on this and have started putting everything together. One thing I came across during the installation was, where is the best place to connect the inverter cables? The bus bars or directly to the batteries?
Once again, thanks for your help!

Tim

Bus Bars

You are welcome.

[Scott'n'Wendy]

Additionally, it is recommended that all the cables from each battery to the bus bar be the same length to ensure even charging and energy draw.

With the distances possible within an RV basement, is this really a concern? Not being a smart **********. Genuine question. I can't imagine there being an appreciable difference between 3 feet of 4/0 and 6 feet of 4/0 as far as resistance/charge current capability?

[SolarPoweredRV]

With the distances possible within an RV basement, is this really a concern? Not being a smart **********. Genuine question. I can't imagine there being an appreciable difference between 3 feet of 4/0 and 6 feet of 4/0 as far as resistance/charge current capability?

When it comes to charging and discharging batteries, yes, you want the cable lengths (when using a buss bar configuration) to be equal, this helps keep the charge and discharge current equally divided between each battery.

If you read the link in post #7 (above) you will realize that cable length (and the distance the Electrons have to travel) does make a difference as to how each battery performs within a specific battery bank. Granted, this will make little to no difference if you are only powering 12 volt devices, where this makes a difference is if you are powering a 3000 Watt Inverter and running your Air Conditioner, then those little Electrons are really scurrying about.

PS: Equal length wiring can also make a difference if you are running multiple LED lights using a dimmer. The closest lights will always be brighter if you don't equalize your wiring.