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MBenm

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  1. MBenm
    I'm really sorry if I could have found my answer somewhere on the forum but after searching I thought I would ask. I have a 2019 Chev Silverado Duramax. On of the batteries is testing at only holding about 70% of its full charge (engine cranking is getting slower). The other is testing at 98%. I am thinking it is time to replace the 70% battery and wondered if i need to replace both at the same time. Also, do they have to be a matched pair (cca / amps etc). Thank you in advance for your help.
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