How To Check Laptop Battery Connector With Multimeter

You need not require any multi-meter to test a laptop battery.

How to check laptop battery connector with multimeter. We apply normal for it voltage in the range of 3-42V per cell and see if it takesany current. Does this mean that my dc power jack is good for sure. Plug the power cord back in.

Then proceed to check the reading on the multimeter display. 2Using a voltmeterfind the and - polarities of the batteryUsually not marked 3Get a power supply that has an output voltage about 20 higher than the stated battery voltagePreferably variable voltage. Plan B- put the battery back in laptop and observe signals on the pin.

Negative probe to alternator case scrape it a little bit to get a good connection. Verify the battery is Li-ion type. My first thought is its either the battery or the AC adapter but Im not sure how to check those without having swappable.

Answer 1 of 3. Run it down completely if the system goes to standby continue waking it. Turn off your computer and remove the battery.

Another test you can do with your multimeter is to unplug the AC adapter from its power source the 110 V to 240 V wall socket and look at the impedance at both ends. Look for the Battery Statusindicator. Windows Mobility Center has various indicators to show whether your laptop is mobile.

If capacity isnt very good try conditioning the cell. When plugged in the battery will be in the middle of. Fully charge your laptop battery.