by Abhay Parvate
Typical "battery low" warnings come up when the battery is - low. Too late. If the current activity is rapidly draining it, we better know it now, even if the current level is 90%.
If you find yourself agreeing, then Battery Predictor is for you. Instead of waiting for a low level, Battery Predictor warns you when the remaining estimated *time* is under two hours.
It does it frequently, while watching the changes in the level. Don't worry if you don't see anything immediately after starting the flow. The warnings will start only when needed.
If the screen is locked or off, it will show notifications. Otherwise it will show toast messages.
The prediction changes with the rate of battery drain, so fluctuations in the estimates are usual. And when you stop a heavy activity, the warnings often stop, because now the estimate is not worrisome (not under two hours).
Also note that the prediction is approximate, so don't wait till the last minute.