How to "disconnect the battery plugged in from more charging when Lenovo z510

Go to Battery options on your Device settings.

Check the Battery charging mode. The device can only charge through the power adapter and may have shifted into the USB charging. If it shows USB charging, do the following.

Remove the USB connector from the Tab device and AC adapter from wall power outlet (Must need to remove both the ends).

Reconnect the USB cable and AC adapter to wall unit. Now check the charging mode, it shows charging with AC. Now the device can charge as normal condition.

If however it shows USB charging, do this step again by disconnecting the ports and reconnecting until you see the AC charging mode for Battery.

If the mode was correct, I'd test the charger unit for 5+ volts. It's possible it died.

the battery is bad
most PCs the charge chip inside is so easy to fool
put in a new battery.

will it run on AC power pack no, large battery present
yes, bad battery.

Quite possible you have a third party battery in this unit.the one supplied by Lenovo may have a chip in the charging circuits to allow continued charging so when you use any other make it refuses to charge.solution replace with original make or source from EBay.sometimes you can fool the dud battery by repeatedly connecting and disconnecting power until it has a residual charge ,then it may allow the charging sequence to continue.

Is the computer at full charge (or at least 90%) prior to the attempt to charge it? I know that my Lenovo is set to not charge from 90% in order to keep the battery from overcharging.

Why Settlers - Rise of an Emmpire + Lenovo Z510 + NVidia GT740 did not started? This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:[email protected],we sincerely hope we can help you!
you can also check this boards whether suit you:
200 001 170DTLA AH Proview 860 AB0 170DTLAQH Power Supply Backlight...

use below link to get the drivers.

http://support.lenovo.com/en_IN/downloads/default.page?

Most of the mouses have a kind of switch and when opened, there are 2 batteries. you can replace them with other rechargeable batteries

again try it without batterie it must be the batterie try only with the cable direct if its than still than you know it something with your pad which i dont think

I just had the same problem. My battery had discharged to less than zero and would not start even though the power plug was in. I tried everything... but what fixed it for me was to remove the power plug, remove the battery, plug in the power cord and start the machine. Once the machine was already booted, I put the battery in and it started charging. Dont know if that will fix your problem, but it fixed mine.

Had the same problem with a manufactured refurb, would go to 79 %, if you go to power options, change plan settings, change advance power settings, then to the Lenovo energy management tab, press the big enable Lenovo energy management, click on the blue gear to the left of the question mark, if "Optimize for Battery lifespan" is selected it will only charge the battery to 80%, change this to "Optimize for Battery Runtime" and it will charge to 100%