mixing batteriy sizes
I have 3 deep cell batteries. One of them is bigger (and newer) than the other 2. What happens if I try to use a big and small one together? What about putting all 3 together?
Forum Discussion
12 Replies
- Another option for you to consider is to create two ‘banks’ of battery power by running the newer battery by itself and the other 2 (together) as a second battery.
This can be done via a cheap marine battery switch (bat. 1, bat. 2, both, off) or by just swapping cables. - The weaker batteries will cause a shorter life for the new battery. Given they are used per your other thread it's a good idea to load test all 3 to make sure they are in reasonable condition. Given that and they are available go ahead and use all 3.
