1 Solar panel--2 Seperate batteries
I have a 100 watt solar panel. I want to use this 1 panel to charge 2 separate batteries in different locations. Will a wire splitter with 2 different control boxes work or should I get another pane...
Forum Discussion
Hi Pianotuna,
Here's your original post:
This is what confused me:
- If the batteries were paralleled, there wouldn't be a need for an additional charge wire as the single charge wire would be charging both batteries.
- If they weren't paralleled, the additional wire would now parallel batteries that are probably of different age and capacity. Potentially high battery currents would be carried by what is usually a 20 or 30 amp wire.
- If the batteries were paralleled, the two wires you recommended from the controller to each battery would be in parallel with the existing battery wiring. Any large battery currents would be shared across what is probably a large wire and the small charge wires, through the charge controller terminal.
It depends on how high the battery currents are that you expect. For very high battery currents, any additional reserve capacity gained by paralleling the two batteries to counter the Peukert effect would likely be offset by the coup de fouet effect. ;)
Bruce
Here's your original post:
pianotuna wrote:
Hi,
If you are careful to have exactly the same length of wire from the charge controller to each battery it will be ok.
This is what confused me:
- If the batteries were paralleled, there wouldn't be a need for an additional charge wire as the single charge wire would be charging both batteries.
- If they weren't paralleled, the additional wire would now parallel batteries that are probably of different age and capacity. Potentially high battery currents would be carried by what is usually a 20 or 30 amp wire.
- If the batteries were paralleled, the two wires you recommended from the controller to each battery would be in parallel with the existing battery wiring. Any large battery currents would be shared across what is probably a large wire and the small charge wires, through the charge controller terminal.
pianotuna wrote:
Plus the Peukert effect would benefit the overall capacity if they are wired in a balanced manner.
It depends on how high the battery currents are that you expect. For very high battery currents, any additional reserve capacity gained by paralleling the two batteries to counter the Peukert effect would likely be offset by the coup de fouet effect. ;)
Bruce
