• ColeSloth@discuss.tchncs.de
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        5 months ago

        What? No they aren’t. They almost always fail on a curve of power and voltage loss.

        Also, I didn’t look it up, but I’d be very surprised if the model Y tesla didn’t require (suggest and oem?) an AGM battery. It’s still lead, but due to how they’re made they can’t get a dead short in them like older regular lead acid batteries can once they get old, although it still isn’t very common for it to happen.

          • ColeSloth@discuss.tchncs.de
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            5 months ago

            No they aren’t. They degrade before they fail. If tesla wanted to provide a warning of a failing battery that pretty much always worked it could have wired in a load test and went off voltage drop under a heavier load.

            Testing if batteries are good or bad does not qualify a person to chart out battery degradation.