bobbyd Posted June 3, 2022 Share Posted June 3, 2022 Anyone know when I should consider replacing my small battery on my 2017 Cmax Hybrid (Less than 22,000 miles)? It runs fine but would enjoy comments....pricing! Quote Link to comment Share on other sites More sharing options...
akirby Posted June 3, 2022 Share Posted June 3, 2022 Well there are 2010 fusion hybrids with 150k+ miles still running fine….. Quote Link to comment Share on other sites More sharing options...
bobbyd Posted June 3, 2022 Author Share Posted June 3, 2022 (edited) 45 minutes ago, akirby said: Well there are 2010 fusion hybrids with 150k+ miles still running fine….. Thanks! I should be more specific, since the Cmax has 2 separate batteries...I meant the 'engine start up battery.' Edited June 3, 2022 by bobbyd Quote Link to comment Share on other sites More sharing options...
akirby Posted June 3, 2022 Share Posted June 3, 2022 52 minutes ago, bobbyd said: Thanks! I should be more specific, since the Cmax has 2 separate batteries...I meant the 'engine start up battery.' Sorry I misread. Normally a 12V battery lasts 3-4 years but hybrids usually last longer. If you want to be sure get a Solar BA-9 battery tester and check the CCA rating against the new spec. 1 Quote Link to comment Share on other sites More sharing options...
bobbyd Posted June 3, 2022 Author Share Posted June 3, 2022 2 hours ago, akirby said: Sorry I misread. Normally a 12V battery lasts 3-4 years but hybrids usually last longer. If you want to be sure get a Solar BA-9 battery tester and check the CCA rating against the new spec. As always, thanks for the information. I think the batteries at the Ford dealer are around $139 or so. I'll wait till the next oil change and get a battery! Quote Link to comment Share on other sites More sharing options...
Noah Harbinger Posted July 6 Share Posted July 6 I suspect the battery-drain gremlins mean that if your car sits a lot you'll need to replace it more often than if you drive it daily. It takes almost no power to start a hybrid (all it's doing is energizing the 12 system enough for it to close a relay)... which also means the battery can get into a realllllly bad state before you realize it's dying - I had one discharge to the point that it spewed sulphuric acid around the battery compartment. (It actually dissolved the battery hold-down clamp, so I've got a little styrofoam in there to help hold it in place.) Quote Link to comment Share on other sites More sharing options...
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