| 04-24-2026, 11:14 AM | #23 |
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Colonel
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| 04-25-2026, 04:52 PM | #24 |
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Private First Class
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57
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Drives: 2015 M3
Join Date: Jul 2014
Location: Stokesdale, NC
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Replaced the battery on my 2015 F80 (July-2014 build date) this month (April-2026). ISTA said the battery was getting charged to 40% and rarely to 48%. I noticed that it would not take long in the garage with the ignition on to get a low battery warning.
Bosch 70Ah AGM battery + Hella ground cable with IBS sensor from RockAuto fixed it for $468. ISTA says this battery charges to 80% which is what it is supposed to say. Had to make a new battery hold down clamp because this battery is one size shorter than the original Lithium despite having the same 70Ah capacity. |
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| 04-28-2026, 04:03 PM | #25 |
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Captain
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The heat from the engine are killing the battery.
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