Lithie is a battery health and charging app for Android. It measures health from your own charges and tells you where every figure came from: reported by the phone, calculated from your charges, or estimated. Your battery history stays on your phone.
Features
A live charge ring with current, power, temperature and voltage, plus time to full and time left on battery. Holding at the limit shows as holding, not as slow charging. Temperatures in Celsius or Fahrenheit, or automatically from your region.
Health measured from your real charges, even partial ones, so there is no need to run the battery flat. Every figure is labelled reported, calculated or estimated. Two opinions puts Lithie's figure next to the one your phone keeps, with a plain note on what any gap means.
A guided charge from near empty to full, worth doing after a new battery. Your charge limit steps aside for that one charge. It is Lithie's most complete measurement, so it counts extra toward your health figure.
Charts you can tap for charges per day, energy charged, average and peak power, temperature, time held at the limit, where charges start and stop, and drain with the screen on and off. Each charge has its own report with a curve you can drag across to read any moment.
Give your chargers names and see them ranked by the power they really deliver to your phone.
Plug in and, in about a minute, Lithie reads what the charger offered, what the cable let through, the connection protocol and Android's own USB warnings. When the phone slows charging itself because it is nearly full, warm or pacing the charge, Lithie says so instead of judging the cable. Save checks to see which charger and cable pair delivers the most.
Battery use per app from the system's own figures, shown with each app's icon.
With Power mode and Pro. See which apps kept the phone awake or woke it up since the last full charge, with the ones worth a look picked out. Suggestions weigh when you last opened each app, so one you never open that keeps waking the phone stands out. Restrict it in background or stop its background activity, see what Android reads back, and undo it at any time.
With Power mode and Pro. Restrict apps in the background, freeze them, turn them off or force stop them, one at a time or several at once with a result for each. Every action asks first and can be undone. Every app carries a safety rating, and Lithie never touches the apps your phone needs. With root, a preinstalled app can also be removed for your user and restored later.
Alarms for full, low and heat that can keep ringing until you look.
Stop charging at the level you choose, through the battery protection your phone maker built in, or directly with root. Charge to 100% once for a long day, or on chosen days. No switch on your phone? Lithie can open a smart plug's web address once per charge at the limit.
Export charges, drain periods and chargers as CSV files any spreadsheet opens. Back up your history to a file and restore it on a new phone.
A plain battery report you can share, handy when you buy or sell a used phone.
Optional, with Pro. The charge limit, wake locks, app control and some figures need more access than a normal app has. Lithie sets this up through Wireless debugging on the phone itself, with no computer and no root. With root, it can also read the kernel's wake sources and the battery gauge's own figures.
How it works
Lithie learns your battery from the charges you already do, partial ones included. Each figure carries a label, so you always know whether the phone reported it, Lithie calculated it from your charges, or it is an estimate. When your phone keeps its own health figure, Lithie shows it alongside, with a plain note on what any gap means.
Power mode is optional and part of Lithie Pro. Lithie sets it up once through your phone's own Wireless debugging, with no computer and no root. If your phone has root or Shizuku, Lithie can use that instead. Either way it only runs a fixed list of commands: battery reads and settings, the wake lock records, when each app was last opened, and the app actions you confirm. Every app action is read back from Android, so you see whether it took. It never restricts, freezes or turns off an app your phone needs.
Pricing
The live ring, battery health, the last week of history, the full and low alarms, keep ringing, Check this cable and Full cycle charge are free. Pro adds the charge limit and its schedule, the smart plug, Power mode, wake locks, app control, per-app use, the heat alert, health over time, full history with charge reports, charger and cable ranking, export, a home screen widget and a Quick Settings tile.
Pro
Subscribe or buy once