I somehow ended up with two different sizes of batteries, and just noticed it today. One is 950 ca and one is 890 ca.

First, is it alright to run two different sizes of batteries?

Second, If its alright to run the different sizes, which battery should I put on the drivers side?

Thanks.

 

Its not recommended to use different sized batteries. They charge and discharge at different rates. One will get munched before it's time then it will take the other out not long after.

You can, it will work and not hurt anything, but you can expect to be replacing both batteries long before you should normally have to.