I've poorly installed a dual battery and I understand some, if not all of you may find this stupid.
It's just sitting in the engine bay on the floor, connected only by a cable ties which is fine and not dangerous, ie, can't move to contact moving parts, away from heat etc.
I was wondering if connecting a lead from it to my positive pole on the original battery, and connecting the negative to the frame is sufficient to give me some more starting torque and not let the lights dim when the car idles. I've had the problem for a while, the car simply drains a brand new battery overnight and I need a cheap fix until I get rid of her.
Cheers in advance for your help. :y: