Also called Optimised Charging, this feature on OnePlus phones basically keeps the charging of the smartphone battery on hold to 100% once it hits 80%.
Now, OnePlus has also launched a similar feature. With iOS 13, Apple introduced a new feature called - Optimised battery charging - that aims to reduce the ageing of battery of iPhones by learning from your daily routine so it can wait to finish charging past 80% until you need to use it.