Enten det er et lavt batteri eller et feil batteri, vil Windows en god jobb varsle deg om problemer med laptopbatteri. Menhvordan akkurat det oppdager problemer? Les videre når vi undersøker.
Dagens Spørsmål & Svar-sesjon kommer til oss med høflighet av SuperUser-en underavdeling av Stack Exchange, en fellesskapsdrevet gruppering av Q & A-nettsteder.
Spørsmålet
SuperUser leser Cam Jackson er nysgjerrig på hvordan hans Windows 7 laptop vet at batteriet går dårlig:
I have a laptop that’s a little over 5 years old, and I’ve never changed the battery, so I believe Windows 7 when it tells me “there is a problem with your battery”, and to consider replacing it.
My question is: how does it detect a dodgy battery? Does the battery not have the same voltage that it used to?
Hvor sant?
Svarene
SuperUser-bidragsyter Tonny forklarer:
Laptop batteries have a small chip inside that controls/monitors the charging process and also monitors the number of charge/recharge cycles.
This chip is factory programmed with information how this sort of battery typically degrades over time.
It also can derive information from the charging cycle itself: The time it takes to reach full-charge at a given voltage/current changes when the battery gets worn out.
(Voltage drop during discharge is not reliable as it depends a lot on the amount of current drawn while discharging, so it varies with the use-pattern of the laptop.)
Windows communicates with this chip to get information about the battery health.
Har du noe å legge til forklaringen? Lyde av i kommentarene. Vil du lese flere svar fra andre tech-savvy Stack Exchange-brukere? Sjekk ut hele diskusjonstråden her.
