I have never had any problem with my IMA. Had it checked recently and still rated at 98 % . My question is whats up with the small starter battery. Supposedly its incase your IMA is down, you can still start car and then charge IMA. My problem is that the starter battery has gone dead on me 5 times over the life of the car and when it is dead, everything is dead and car will not start without a jump. Is this a design flaw, is there something wrong with just my car or do I just not understand how the system works.