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I used to say the same stuff about the built in ups in my laptop server. Until I almost burned down my house. Aparently laptop battery charge controllers do no
by callesgg 12y ago
I used to say the same stuff about the built in ups in my laptop server.
Until I almost burned down my house. Aparently laptop battery charge controllers do not work as intended when plugged in for long periods.
Otherwise laptops are perfect as cheap low power servers.
- mnw21cam 12y agoSounds like you had a duff charger circuit. However, yes, a LiIon battery is not meant to be left continuously on charge. A lead-acid battery (typically used in UPSes) is meant to be left continuously on charge.
- simoncion 12y agoShouldn't the charging controller in the laptop stop charging the battery once the battery is at full charge? It seems to me that a great many folks leave their laptops plugged in for weeks or months at a time, and that this would be something that a laptop designer would account for. (Anecdata: The six-ish year old battery in my primary laptop still holds ~60% of its original maximum charge. This laptop spends the vast majority of its time on, with the battery installed, and plugged in to an AC outlet.)
- callesgg 12y agoIt definitely SHOULD turn off when full. No doubt about it.
- simoncion 12y agoI agree with mnw21cam's assessment of your charging circuit. I have a Toughbook and a Thinkpad that have been continuously plugged in for many, many, many years.