Recently got the Lenovo Yoga C740 and initially got it to charge at 100%. However, I’ve since noticed it drop to 98% with “plugged in, not charging”. I’m hoping it’s some sort of setting I’ve accidentally switched off and I just need to switch back on. Does anybody have any suggestions how I can do this? Whereabouts is the setting in Lenovo Vantage (if any) to get it to start charging again? Conservation mode is switched off and I have no idea where to find the charging threshold and whether it’s on or not (I saw this term on another thread)
Seeing “plugged in, not charging” at 98% can be normal battery protection. For the Yoga C740-14IML and C740-15IML, Lenovo’s user guide says recharging does not start while the remaining charge is above 95%. That is a recharge-start threshold, not a guarantee that the battery can never drop below 95%.
A stop at 80% alone does not prove a fault. Conservation Mode can limit charging on supported Lenovo models, and some models offer a custom charge threshold. These settings can be changed where available; the options and percentages vary by model and Vantage version. Check the power settings actually available in Lenovo Vantage and your model’s manual rather than assuming every C740 has the same controls. If charging still fails after the applicable limits and adapter have been checked, follow Lenovo’s battery troubleshooting guidance. If you regularly use the laptop on AC power, consider Conservation Mode where your model supports it.