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Thanks for this! My partner's laptop has started giving battery-related warnings and I - even as someone vaguely technical - hadn't really considered it might b

Thanks for this! My partner's laptop has started giving battery-related warnings and I - even as someone vaguely technical - hadn't really considered it might become actively dangerous. If I'm totally honest, I simply and somewhat cynically figured it was a ruse by the manufacturer to bilk some money from us on an unneeded replacement, given its software's likely counting daysSincePurchase!

jschwartzi 9y ago
Modern lithium-ion batteries have a really nice voltage regulator and smart charger embedded within which can estimate cell wear, count charge/discharge cycles, and tell you how much absolute charge is remaining. It's at least possible for the manufacturer to be using this information instead of simply counting the hours.