My 2024 Tesla Model 3 used to charge to 100% no problem, but for the last few weeks it stops at 80% even when I set it to full charge. The car's only got 15k miles on it. Is this a battery management system issue or something I should get checked at the service center?
I've seen this happen with various battery-powered devices - it's almost always intentional software limiting, not actual battery damage. Tesla does this deliberately to extend battery lifespan; the car's BMS (battery management system) learns your charging patterns and may cap you at 80% if it detects you're regularly charging to 100%, which degrades cells faster over time. Check your charging settings in the car's menu - there should be a slider where you can manually set your charge limit back to 100% if you really want it, though Tesla's recommendation to stick around 80-90% for daily use is solid advice. If the setting's already maxed and it still won't go past 80%, then yeah, get it checked at the service center, but I'd bet money that's not the case here.
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