If you’re not familiar with Optimized charging, it basically charges your phone to 80 percent and then stops. The rest of the 20 percent is charged 100 minutes before you wake up. What this means is that your OnePlus phone is not being consistently charged and it takes help from the sleep cycle detection feature.
When should I charge my OnePlus phone?
The best way is to charge your Oneplus phone before it went less than 40 percent (<40). Which means, charge your phone anytime but never exceed below than 40 percent. Well, if there’s emergency that’s fine. Take it out when full.