Chromebook Battery Won't Charge

[dnitzel]

I have a Chromebook that won't charge and the battery is dead.  When I plug its power adapter in, the charging light does not come on and I've had it plugged in for 3 days and the Chromebooks battery is still dead.  I tried using another power adapter from another Chromebook of the same model.  The charge light did not come on and it did  not charge the battery.  When I plugged the power adapter from the Chrombook with the dead battery into the other Chromebook, the charging light came on and it appeared to charge that Chromebook, so I'm pretty sure the problem is with the battery.  I had this same issue with this Chromebook last fall and I believe I had to replace the battery.  What would be causing this Chromebook to be going through batteries like this?

[AlaaAl90 · Accepted solution]

if you are using the chromebook with the ac plugged in without removing it .. thats cause the battery damage ..

you need to charge the battery at 10% 

and you can take the ac off when the battery charges 95% 

thats the safest way to charge the battery