Could heated seats drain the battery?

[MtHigh250]

I have an 05 F250 with heated seats and I left them on over night the other night and all of a sudden truck got hard to start. Mind you when I turn the key off and take it out the heated seat light is off and I no longer feel heat. Assuming they are off now. So drive to work seats on and shut truck off then go to work get back to truck try and start and takes even longer. Needed gas so go to the gas station for go go juice fill up then truck won't start. Cts says battery voltage 9.5. Turn off everything radio, seats, heater etc. Still need a jump had 92 7.3 sit for ten MIN to charge up the battery then she turned over drove 5 MIN shut off waited five min turned over fine again. Put heated seats on as a test and drove home. Got home and shut down (truck running for 20 min) go in the house come back and turn key to cts says 9.5 again. Turn seats off and wait ten min to turn key on and cts says 11.2. And truck starts Has anyone had this problem before? Needless to say I'm going to get two new batteries to see if that helps. Any other ideas?

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[WarChild]

Souds like your batteries might be bad. Or your alternator is taking a vacation. You can get them born tested.

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[nordstrom]

Originally Posted by WarChild

Souds like your batteries might be bad. Or your alternator is taking a vacation. You can get them born tested.

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Yea what he said...ha

[southend]

Yea, what they said. Bad batteries kill ficms. Get them load tested.

Sent from my phone that somebody didn't help me get.

[6.0f250firstcar]

Yeah until you can get the batteries load tested I wouldn't drive the truck unnecessarily.


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[MtHigh250]

Yeah I load tested the batteries and one battery is fine and the other is toast. I heard it is best to replace both of them at the same time? is this true? One battery is only 2 years old and the other is 3.5 yrs the older one is done. I am just going off of the calender stickers on the batteries. I think they should both have warranties. Now if new batteries doesn't fix the problem try the alternator?

[Lilpooh]

Always replace batteries in pairs, if you replace just one, the older weaker battery will bring down the new battery.


Why wait to test alternator, get it tested now to eliminate possible drain on your new batteries.


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