macOS · Free forever · Pro $6.99, one payment
静かに見守り、無理なく長持ち。
Your MacBook battery wears down a little with every full charge. Battery Sensei watches the details: warns before shutdown, holds a healthier charge limit, and shows which apps drain power, how cycles add up, and whether capacity is aging normally.
Lives in your menu bar. Speaks only when it matters.
What it does
静かな警告
macOS shows a percentage. Sensei reads what that number means, so you get the right nudge before your MacBook dies. Use the three presets, or set your own thresholds and dismiss times.
Turn either update on or off. After unplugging, Sensei starts with your recent workload and refines the battery estimate live. After plugging in, it waits for charging to settle, then shows the time to your active charge limit, or 100% in Travel Mode. Both stay out of the way and close with Escape.
On battery
46%Charging
46%Weekly standup
Battery won't last. 22 min on the charger and it lasts through the meeting.
Opt-in. Sensei checks your next few meetings on-device and, when the battery will not last, warns you at 30, 15, 5, and 1 minute before with a clear fix. Event titles never leave your Mac.
Lithium-ion batteries age faster when they sit at 100%. Pick a cap (80% is the gentle default); Sensei holds it in the background. Flying tomorrow? One tap tops up to 100%, then your cap returns after the trip.
84%
1h 52m left
Charging to 80% 80%
Charge, source, watts in or out, time left. The whole picture at a glance. No dock icon. No notification noise. Nothing to click unless you want to. Stay current without checking twice.
MacBook battery health · 健康
A calm line for every charge. See your daily rhythm, spot unusual dips, and understand battery behavior at a glance.
When the battery passes your chosen temperature, Sensei pauses charging until it cools. Less heat each cycle, so your capacity lasts longer.
42°C
Charging pausedresumes at 37°
Sensei ranks the apps burning through the last sixty minutes, with names you recognize. Spot a runaway helper in one glance.
Spot a flaky cable in seconds. Catch a power-hungry app before it takes the afternoon.
"217 cycles. Normal for 14 months." Context, not just a number.
No app telemetry or cloud sync. Your battery, calendar, and per-app energy data stays on your Mac. Only focused update, licensing, and actions you start use the network.
Sensei vs the rest · 比較
Battery Sensei sits alongside well-loved Mac battery tools: AlDente, BatFi, coconutBattery, iStat Menus, even the new macOS Charge Limit. Here is the plain side-by-side.
| Feature | Battery Sensei | AlDente | BatFi | coconutBattery | iStat Menus | macOS |
|---|---|---|---|---|---|---|
Native macOS app | ||||||
Light & dark themes | ||||||
Cycle & capacity | Partial | |||||
Multi-device support | ||||||
Silent updates | Partial | Partial | ||||
Live menu-bar watts | ||||||
Charge limit | ||||||
| Partial | Partial | |||||
| Partial | ||||||
Based on each tool's public site as of May 2026. Each app is good at its own thing; check their sites for the full picture.
Pricing · 値段
Start with Free and keep the essentials forever. Pro is free for 5 days; after that, choose a one-time Lifetime unlock or stay flexible as a Yearly Patron.
Free forever. No card, no account.日 5 After 5 days, Sensei asks once:Keep Pro ($6.99) or switch to free. No card on file, no silent charge.
Fund Sensei's ongoing development. A yearly subscription with every Pro feature included.
Already bought? Open Sensei → Settings → Pro, then paste your key.
Questions · 問答
Get in touch · 連絡
Bugs, feature ideas, and anything tied to your purchase or license all go through the form below. First reply usually lands within 48 hours on weekdays.
Check the FAQ first, add your Polar order ID for anything billing-related, and find deeper tips in the Guides.
