Which Macs are supported?

macOS 13 Ventura or later. Sonoma, Sequoia, and whatever ships next. Every Apple Silicon Mac. Intel MacBooks too.

How much does Battery Sensei cost?

$3.99 once, lifetime license. Lifetime unlock: up to 3 Macs you own. No subscription. Free for 5 days first. No card, no account. When the trial ends, Sensei asks once at launch. Skip the purchase and the core stays free forever: charge limit, Travel Mode, smart alerts, 24-hour history, per-app drain, live menu-bar watts. Premium adds Meeting Battery Guard, unlimited history, and custom warning rules. Checkout shows your local currency.

How does the license key work?

After checkout, your key arrives by email. Open Sensei → Settings → Premium and paste it in. Activates against Polar, stores locally. No account. No login. Lifetime unlock: up to 3 Macs you own. Yearly Patron: up to 5 Macs while subscribed.

Yes. 14 days, no questions asked. Email us and the refund goes back to the original card. Polar handles the payment.

How does the charge limit work?

Sensei stops the charge at the level you pick. Default is 80%: cooler battery, longer life. Travel Mode is one click. Sensei tops up to 100% at full speed, with no macOS slow-down on the last 20%. Returns to your limit when you are home.

Does Sensei send my data anywhere?

No. Nothing leaves your Mac. No telemetry. No analytics. No cloud account. Your battery history stays on this machine.

How is Battery Sensei different from the macOS battery menu?

macOS shows you a percentage. Sensei reads the rest. Smart low-battery alerts at thresholds you choose. A charge limit with Travel Mode. Live charging watts. Cycle and capacity over time. Plus a calm, plain-English history of how your battery is aging.

How much battery does Sensei itself use?

Less than 1%. Native AppKit and SwiftUI. No background polling. Sensei samples only when macOS reports a change.

Is Battery Sensei an AlDente alternative?

Yes. Sensei covers AlDente's charge limit in every tier, plus smart warnings and a battery history. Ships as one notarized .pkg installer. Premium adds Meeting Battery Guard, unlimited history, and custom warning rules. One payment, lifetime. Side-by-side comparison lives in the Compare section above.

How do I update Battery Sensei?

Sensei checks for updates on launch. A new build shows up as a quiet notice. You install when you say so. No silent pushes, no nag screens.

How does Meeting Battery Guard work?

Opt-in Premium feature. Sensei reads your calendar locally and predicts which meetings your battery might not survive. When a meeting is at risk, you get up to four nudges: 30, 15, and 5 minutes before start, plus one at the start time. Each nudge names the exact minute the laptop is predicted to die ("dies 17 min into standup") and the plug-in time that clears it ("22 min on the charger and you're through"). Event titles never leave your Mac. Sensei reads the calendar locally via EventKit. If the risk passes, pending reminders cancel silently.

Battery Sensei

Feature · 警告

Alert presets.Zen Mode. Regular Mode. Teach Me Senpai.

Name: Battery Sensei
Availability: InStock
Author: Battery Sensei

Zen Mode whispers at 15% (closes in 5 s) and once more at 5% (10 s) — quiet, lets you finish. Regular Mode adds a red overlay at 5% and a persistent alert at 2%. Teach Me Senpai keeps it simple but stern: a red overlay at 15% and a full-screen flasher at 5%, both staying until you dismiss. Pick the mood that fits — or compose your own with Custom thresholds.

Three preset moods. One tap to switch — any time.

Why it matters

macOS gives you exactly one battery notification: at 10%. By then it's often too late for the slide you were about to ship. Three presets let the warning match the stakes.

Try Battery Sensei free