Hi,
That's a very good idea, but only if the resistances are similar and if the added resistances dont have to be too high in value.
The best way however is to use a higher voltage for the higher resistance battery, and see if that brings the resistance down (it may). If so then the problem may get better and you wont have to do this again for a while.
If not, then the best way is to use a separate voltage for each battery. If you need a higher voltage for the 2nd battery you can use a small boost circuit. Yes that makes things a little more complicated, but batteries are devices that are not as simple as they appear to be.[/QUO
Can you direct me to a circuit for a boost circuit for a 12 volt 7Ah ela battery