Adapter only works with battery fully charged or removed


Mar 5, 2017
I have a Lenovo Y510p and recently had to replace the power adapter. The problem is that the new one only works when the battery is fully charged or removed.

I have to remove the battery, plug in the adapter, turn on the pc and then put the battery back on. If I go through this process, everything works properly and the battery even gets charged.

If I plug the adapter with the computer already on or try turning it on when the battery is not fully charged, the adapter dies and I have to remove it from the power outlet so it resets and start working again.
It honestly still sounds like the adapter is the issue. When they aren't working correctly, they will only work to charge the battery when the laptop is off and only power the laptop when there is no battery or it is fully charged. Usually when this problem occurs it is with an older one and is time to replace it. As it isn't putting out enough of a charge to both run the laptop and charge the battery. Since you said this is a new one, then it isn't functioning correctly.
Did you buy the same adapter that comes with the laptop or did you buy and aftermarket one from somewhere? If it is the latter, then this could be your problem. Some aftermarket ones just do not put out the right amount of power to work correctly. Leaving you unable to charge the battery while using the laptop.

Try returning the charger and get a better one.


Mar 5, 2017

I don't believe this is the issue. I bought one from Amazon that was certified by Lenovo. And it does charge the battery if I go through the process I mentioned before. I even checked the power with a multimeter. It measures correctly on its own and goes to 0V if I plug it to the PC without removing the battery first.
Thread starter Similar threads Forum Replies Date
jomari29 Laptop Tech Support 4
J Laptop Tech Support 1
A Laptop Tech Support 1
J Laptop Tech Support 1
M Laptop Tech Support 5
D Laptop Tech Support 1
T Laptop Tech Support 2
M Laptop Tech Support 1
T Laptop Tech Support 1
G Laptop Tech Support 3
D Laptop Tech Support 2
R Laptop Tech Support 5
A Laptop Tech Support 2
M Laptop Tech Support 4
A Laptop Tech Support 2
J Laptop Tech Support 3
N Laptop Tech Support 1
O Laptop Tech Support 5
S Laptop Tech Support 1
R Laptop Tech Support 1
Similar threads
Accidentally snapped off this capacitor, now laptop wont work on battery
Why does my computer run slowly when plugged in with charger and works normally on battery?
i have t460 laptop which is working by adapter after connecting battery machine goes to power off... swapped the battery, memo
I have an acer laptop. No power getting to pc, either woth adapter or in battery. Worked fine yesterday. Tried ESD, no luck.
Laptop will not charge, will work on AC but not on battery
My laptop's battery is not charging but the AC adapter is working.. Do I need a new battery?
US Gigabyte Laptop Power Adapter weak or not working, laptop switching between battery and charging
AC adapter works fine, got new battery, laptop still not charging
Battery charges intermittently, BUT had work done on damaged
the AC adapter won't work without the battery in
Asus g55vw laptop will work only on battery. It will not charge the battery and will not power up with power adapter
HP pavillion M6 Laptop wont start with battery inserted but works fine on only adapter.
Unable to charge laptop,battery and adapter working
My Laptop doesn't work while plugged in but it works with the battery.
Battery doesn't charge, ac adapter stops working if battery inserted
ASUS UX31A - Battery won't charge / AC Adapter only doesn't work
Lenovo G500s does not Work without being Plugged In
AC adapter won't work when battery is in laptop (HP Elitebook 8560w)
Power dies when unplugging AC Adapter, but battery works fine.
Plugged in, not charging. Most fixes do not work.