RJW90
New Member
No. The increase in battery capacity does not affect anything. It just gives you more cranking power, and allows you to leave your lights on longer without the engine running.
How do you know that the battery isn't charging? If you have a multimeter you should get between 13.9 and 14.5 at the battery with the engine running.
I'm only getting 12.57 across the battery. Which i know from having alternator problems before means it's not charging properly.