Originally Posted by cb450sc

I have an '03 Civic Hybrid with about 75 000 kilometers on it. Two weeks ago I had to replace the 12 volt battery. It would not start the car and would not hold a charge. The IMA battery was at less than half a full charge. I replaced the 12 volt with a Walmart battery and after about a 15 minute drive the IMA was completely charged. I was proud of myself for having saved a bundle by not taking it to the dealer. Over the past two weeks the IMA has slowly discharged again so that it is always at less than half. The only thing that seems to charge it is the braking. I have taken it out on the highway a few times and the charge did not move one bar. Any suggestions?