Waqar my laptop battery habe problem that it drains too fast becouse of it is 4 year old. when i took out the battery cell and chaked the power by multemeter all 6 cells shows 4.9 but it drains too fast and also it charging too fast... i dont what is the problem.cells show perfact voltage.. Pls help! my hp laptop battery won’t on my laptop,i have to remove the battery to on the system with power source before it will come on, and then put the battery back, & it charges & also retain charge for some time, pls what can i do to fix this.. Laptops with a non-removable battery: shut down the computer. plug it into a power source. plug it into a power source. on the built-in keyboard, press the left-side shift control option keys and the laptop power button at the same time..
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