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Fuse Size
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<div>I have a 12volt 100ah battery and a 30amp solar charge controller. What size fuse from the battery to the solar charge controller should i used ?</div>
For a 12V 140Ah battery and a 30A solar charge controller:
Use a fuse around 15A to 20A between the battery and the charge controller.
Check the charge controller’s manual for recommended fuse sizes.
Consider the controller’s 30A rating and the battery’s 14A continuous current.
Choose a size slightly higher than the battery’s continuous current for safety.
Always follow manufacturer guidelines for the best fuse size.
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