Weird Battery Issue - Page 2
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Thread: Weird Battery Issue

  1. #11
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    Quote Originally Posted by oreo382 View Post
    Well it turns out it is the battery.Went back to the store after getting the car started and they tested it with a cca reading instrument which read 500cca.As a second test they then got me to start the car,turn on the hi beams and heater to full and watched the battery voltage slowly dropping,the alternator couldn't keep up.They changed the battery (another lead acid) and she starts now.I have no idea why the first load test showed good other than the tech didn't have the load current set high enough.I did notice the old battery voltage would jump up to >15 volts almost immediately after starting.The new one goes up there if the temperature is below 0 but it does it much more slowly.As for the have to have an AGM battery replys,flooded batterys have been starting diesels for a long time,much larger diesels than the 2L Cruze.Admittedly the big ones use 2 batteries but the diesels are like 6L,3x the displacement of the Cruze.I've got 1 year free replacement left on this battery,if it starts to act up then i'll go buy a Northstar and be done with it.
    Get it replaced now with an AGM battery. The old flooded cell Lead Acid batteries won't work in the Cruze, or in just about any other late model car for that matter. It's not about how much starting power is needed, it's how the battery is managed by the car. The Cruze has a variable output alternater, which means that the battery won't be receiving a consistent 14.4v for charging. Instead, it will receive anywhere from 13.5 to 15.6v for charging based on the load on the engine. Lead acid batteries simply can't handle this variable charge rate.
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  3. #12
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    Whoever did the service in the car should be put out of business, they are not qualified to work on anyone’s car. I am amazed how folks buy a car and then can’t seem to understand how to maintain it properly. My dad is 80 now and his first real job was a Ford mechanic at a dealership. I am so thankful for everything he taught me. I am not a gear head but I understand how to do basic stuff and get repairs done properly.
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  6. #14
    oreo382 is online now [OP]
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    The gas Cruzes came with flooded lead acid batteries and have the same charging algorithm (smaller alternator current output though).I've looked this up in Chilton's service manual for both the gas and diesel cruzes so your statement of not working is not correct.My Cruze output is 15 volts when the temp is below zero celsius which is fine for a flooded battery.Look up the charging specs. for them at low temps and see for yourself.Optima batteries in one of their q&a's about AGM battery charging were asked what charger setting to use if there is a standard (flooded) and gel setting on a charger.Their reply was to use the standard (flooded) setting.So the AGM and floodeds are not that much different as far as charging,they're both lead acid.Another thing to put in your pipe,AGM's can't tolerate charging above a certain ambient (120F) temperature as well as floodeds.Manufacturers state this in their literature,look it up.Underhood summer temps are more than 120F.No wonder there are a lot of Cruze Diesel battery failures.AGM's are great in the trunk.I'm sure the manufacturers don't mind as they can sell more.

  7. #15
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    Quote Originally Posted by oreo382 View Post
    The gas Cruzes came with flooded lead acid batteries and have the same charging algorithm (smaller alternator current output though).I've looked this up in Chilton's service manual for both the gas and diesel cruzes so your statement of not working is not correct.My Cruze output is 15 volts when the temp is below zero celsius which is fine for a flooded battery.Look up the charging specs. for them at low temps and see for yourself.Optima batteries in one of their q&a's about AGM battery charging were asked what charger setting to use if there is a standard (flooded) and gel setting on a charger.Their reply was to use the standard (flooded) setting.So the AGM and floodeds are not that much different as far as charging,they're both lead acid.Another thing to put in your pipe,AGM's can't tolerate charging above a certain ambient (120F) temperature as well as floodeds.Manufacturers state this in their literature,look it up.Underhood summer temps are more than 120F.No wonder there are a lot of Cruze Diesel battery failures.AGM's are great in the trunk.I'm sure the manufacturers don't mind as they can sell more.



    Wow, thanks for straightening us all out. I don't know what these silly people with all this education and experience were thinking. Whoops, went past 20 words and that's more than I want to invest in somebody that already knows everything.
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  8. #16
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    Quote Originally Posted by oreo382 View Post
    The gas Cruzes came with flooded lead acid batteries and have the same charging algorithm (smaller alternator current output though).I've looked this up in Chilton's service manual for both the gas and diesel cruzes so your statement of not working is not correct.My Cruze output is 15 volts when the temp is below zero celsius which is fine for a flooded battery.Look up the charging specs. for them at low temps and see for yourself.Optima batteries in one of their q&a's about AGM battery charging were asked what charger setting to use if there is a standard (flooded) and gel setting on a charger.Their reply was to use the standard (flooded) setting.So the AGM and floodeds are not that much different as far as charging,they're both lead acid.Another thing to put in your pipe,AGM's can't tolerate charging above a certain ambient (120F) temperature as well as floodeds.Manufacturers state this in their literature,look it up.Underhood summer temps are more than 120F.No wonder there are a lot of Cruze Diesel battery failures.AGM's are great in the trunk.I'm sure the manufacturers don't mind as they can sell more.
    Chilton's is wrong in this case. The battery that came with my 2012 ECO MT was AGM.
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  9. #17
    oreo382 is online now [OP]
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    Quote Originally Posted by obermd View Post
    Chilton's is wrong in this case. The battery that came with my 2012 ECO MT was AGM.
    Read up on the Gas Cruze forum,that's where I learned that bit.The part about the algorithm is from Chiltons and if you think that's wrong then read up again on the gas forum and there is info about the charging scheme.The ECO may be different (weight saving?)

  10. #18
    oreo382 is online now [OP]
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    No, I don't know "everything",just that you spout out some b.s. about batteries not working in any cars.Show some proof.BTW the sarcasm attack is typical of a person with no backup to their statements.

  11. #19
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    Quote Originally Posted by oreo382 View Post
    Read up on the Gas Cruze forum,that's where I learned that bit.The part about the algorithm is from Chiltons and if you think that's wrong then read up again on the gas forum and there is info about the charging scheme.The ECO may be different (weight saving?)
    The charging algorthyms are correct - just the OEM battery info. GM started transitioning from Lead Acid batteries in the late 90s - my 2002 Pontiac Montana had an AGM battery from the factory.
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  12. #20
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    That's just diesel's dude. Cold weather puts an unbelievable strain on batteries.
    That's the nature of pure compression cycle.

    Plus side you never pay for batteries, just keep those receipts. Free new battery almost every winter!

    If stuck charge the battery then jump it. That should give you enough umph to lite the glow plugs and spin fast enough.

    At least new ones start in the winter. The old manual injection pump motors were a nightmare if you forgot to plug in the block heater.
    More then once I stuck a hibachi under my old VW rabbit...
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