Mixing different volatage batteries
Have 2 new 6v Interstate batteries, if I have enough room for just 1 more, would this work for 12v? if so, where would you connect the load.
Forum Discussion
Padlin wrote:
Or this
This will not work properly. You're only giving the load 6V. It is only very marginally better than your first drawing, which had the batteries shorted out. This one probably wouldn't blow up, or start a fire right away, but it won't work and could well destroy a battery or your converter/charger over time
The 12V battery is, broadly speaking, equivalent to two 6V batteries in series. The 12V battery has six cells in series internally; the 6V batteries each have three cells in series. The main difficulties alluded to by other posters are due to significant differences in cell structure between the two batteries.
Based on the pictures you're posting, I would suggest that you have someone else (with a decent knowledge of things electrical/electronic) check out your actual wiring before you connect things up. It's easy enough to cross yourself up when you're quite clear on what needs to be done, and having only a fuzzy understanding of things doesn't make it any easier.
