Battery Grapher graphs your historical battery levels and learns your habits to make smart predictions on what your future battery levels will be. Developed specifically with energy consumption in mind, Battery Grapher has almost no impact on battery life.
SMART PREDICTIONS
Battery Grapher uses historical battery levels to intelligently predict what your battery level will be throughout the rest of the day, allowing you to plan when to next charge your device. The longer you have Battery Grapher installed, the more accurate future battery level predictions will be.
LOW ENERGY CONSUMPTION
Battery Grapher is made for people who want to extend the battery life, meaning that low energy usage is a priority. The app runs a background task only once an hour, and doesn't require a network connection, which keeps energy consumption extremely low.
CUSTOMIZABLE NOTIFICATIONS
Battery Grapher allows you to set notifications that fit your needs. You can get the app to notify you when you battery drops below a preset percentage, or if you only have a certain number of hours left before your battery runs out. (currently only available on watchOS)
ALL COMPLICATIONS & WIDGET SIZES SUPPORTED
Battery Grapher supports all complications & widget sizes. Complications can show hours before needing to charge, or battery %. Both complications and widgets are customizable from within the app.
HideShow More...
Screenshots
Battery Grapher FAQ
Is Battery Grapher free?
Yes, Battery Grapher is completely free and it doesn't have any in-app purchases or subscriptions.
Is Battery Grapher legit?
🤔 The Battery Grapher app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.
Notifications don’t seem to work and it always tells me that I have 47 hrs left of battery, whether my watch is at 80% or at 40%.
I left it pinned on the dock for more than 14 days. I get that the “how many time you have left on your watch” might require a different configuration or maybe more time, but I just find it disappointing that it cannot even send me proper notifications.
Not good
I’m only doing a review on here because you guys software mess up my Apple Watch an now I have to buy another an this is not the 1st time this has happen i downloaded it on to my watches an the same thing keeps happening
Great App (iPad/iPhone/Apple Watch)
It’s been a 5 star experience on my devices for multiple years, but it does likely need an update for the people with newer products.
Love this app
I love this app I’ve been using it all the time especially on my watch because I love knowing when I actually need to charge it I use the complication instead of ever looking at the battery, I do wish there was an actual MacBook app just because I feel like it would be nice to have.
Love It!
I would give the app 5 Stars if it worked on all the devices it is supposed to work. I love this app on my iPhone and iPad, it gives me great insights into my battery health and great metrics to follow as to battery drainage. My experience on my Apple Watch Ultra has been less pleasing. I have uninstalled and reinstalled the app twice in four months but I never get an accuracy measurement greater than bad. I don’t charge my watch every night but it can never get the accuracy level to change. Thanks for a good app for the phone and tablet. I wish the app worked as well on the watch.
App is improving
The app has improved greatly from when I originally purchased it, a lot more detailed information given on amount of batter drained per hour.
Great app
I love being able to see the time until next charge based on my daily habits rather than just battery percentage. On my phone, this app took about a week for it to collect enough data for “Great” accuracy. Keep in mind that this takes longer on the watch: about 3 weeks for me. Regardless, this is a cool and useful app.
Love this app!
This app is so helpful it is so accurate and I’m so glad I bought it as a one time purchase!
Apple Watch 7 Incompatibility?
Ever since I upgraded to to Watch OS 9.3 the usage per hour has increased significantly. Is this anything you’ve noticed? I’m not blaming the app which I’ve used for a long time and love it. But is it just coincidence? It happened immediately. Thx.
Helps debug battery drain
I really like this app because it helped me see the effect on actual battery duration (in hours) of toggling the always on screen on my watch. As a result, I decided I’d rather have more battery life than the always on screen.
Small annoying bug is that even once the app is confident that battery life is good, the complication never shows more than 47 hours, even if the app details says the battery life is (eg) 60 hours and it’s fully charged. Once it gets below 47 the number goes down as expected, but for the first many hours it’s just stuck at 47, which seems to be a hard-coded number and incorrect. (Or perhaps some logic like <48 is hard-coded.)