macOS 26.4 ships a basic 80–100% limiter. ThunderVolt Pro ships the features that require cross-device intelligence, AI, and hardware depth Apple won't expose. Try free for 7 days.
$2.99/mo · $14.99/yr · $29.99 lifetime · No credit card required for trial
Toggle charging modes, view live battery %, and get cross-device heat alerts from your wrist. Apple's native limiter is Mac-only — ThunderVolt follows you everywhere.
Apple's native limiter stops at 80%. ThunderVolt Pro goes further: Storage Mode locks at 50% for long-term shelf storage, or set any custom threshold from 50–95%.
ThunderVolt tracks your real health trend as −%/month and predicts your replacement date — often months before Apple's Battery Health indicator moves a single point.
Monitor every Mac in your household or workspace from a single iPhone view. Private CloudKit sync — your data never leaves Apple's infrastructure.
ThunderVolt reads your calendar and automatically allows 100% charging the night before a detected flight, trip, or travel event — then returns to your health limit after.
The direct .dmg edition goes one level deeper: a privileged LaunchDaemon writes charge inhibit bits directly to the SMC. The limit is enforced in hardware, not just software.
7-day free trial on monthly and annual plans. No credit card required to start.
$2.99 / month · $14.99 / year (save 58%) · $29.99 lifetime
Download & Start Free TrialRight-click the app and select "Open" to bypass Gatekeeper for the direct edition.