Solar panel hook up to battery

[DickO]

I have a small solar panel to hook up to my 2 batteries. I have conflicting ways to hook up. Do the clips from the panel hook to one battery or the positive on one battery and the negative on the other or does it matter. Thanks

 

[jerryjay11]

If you are talking about two 12-volt batteries in parallel, then it doesn't matter. use clips on both post of one battery. Keep in mind that if one battery is weaker than the other you won't have equal charging of batteries. If you are running two 6-volt batteries, then one clip on + one battery and the other clip on - second battery.