According to test results compiled by EveryMac.com, the battery in an Apple MacBook Pro laptop lasts five to six hours even with the Wi-Fi adapter turned on and the processor running full speed. This ...

You plug in your adapter to your laptop, and the battery doesn’t charge reliably. Sometimes, your Mac dings to let you know it’s plugged in to power; other times, you have to plug and unplug, or even ...