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HP 2540p Elitebook

Mark D Oct 10, 2014 12:49PM EDT

Battery Status on screen does not indicate that the laptop is charging when plugged into the V72 battery at either the 19V/3A setting or the 16V/3.5A setting. The output rating on my adapter for the notebook is 18.5V/3.5A - is the V72 not compatible with this laptop?

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Voltaic Support Oct 13, 2014 09:20AM EDT Home Agent

Hi Mark, sorry to hear that your laptop isn’t charging. Unfortunately both the current and voltage of the battery output need to exceed the requirements of the laptop, otherwise it won’t charge. If the laptop tries to pull 3.5A from the battery at the 19V setting, it will shut down to protect itself against short circuiting.

Try charging when the laptop is asleep or turned off, as they require much less power than when then are actively used.


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