Forum Discussion
MEXICOWANDERER
Jul 01, 2015Explorer
Some warts provide 19-volts so testing them is a pain. But if the wart provides the correct voltage as measured with a meter it will not hurt the laptoo battery. If it's a cheap, underpowered wart it will take longer to recharge the battery. Most wall warts only provide 2.5 amps or so. I've seen cheapies develop half that meaning a long time a charging. But check the voltage. It must agree with what is listed on your old wart-brick exactly.
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