bSaver
MacBook Battery Charge Limiter for macOS
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Limit MacBook charging to 80% or any level you choose. bSaver lets the battery rest on the charger, with a thermal guard and calibration. Free 7-day trial.
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More like this: all 379 launches in macos system utilities →
PH · launched Oct 28, 2026 · 2 upvotes (top 22%)
- Horizontal
- Prosumer
- Not AI
- Commercial product
- Mac
- Productivity
- Menu Bar Apps
Similar launches
See all 211 similar launches →Could you build this?
Partial A menu bar UI is vibe-codeable, but controlling charge limits requires low-level macOS power management, SMC access, and calibration logic that is fragile across hardware generations.
What it would actually take: The app would be a Swift menu bar app that talks to the SMC or power management interfaces and runs a charge-control daemon with thermal monitoring. The hard part is reliable low-level control across many MacBook models and macOS versions, plus safe battery calibration. This needs macOS systems and hardware-level debugging experience, and testing across real devices.
Competitors
Other products that read as similar to this one : 211 launches clear the similarity bar, closest 8 shown.
Attention rank: #61 of 212 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 351 days after the earliest competitor.
- Kombucha · ph · 2026-10-24 · 2 upvotes · similarity 0.66
- Battery Orbit · ph · 2026-10-23 · 2 upvotes · similarity 0.65
- Wacchi · ph · 2026-10-18 · 1 upvotes · similarity 0.55
- BatteryBud for Mac · ph · 2026-10-10 · 4 upvotes · similarity 0.51
- Juicy - Mac Battery App · ph · 2026-07-10 · 228 upvotes · similarity 0.50
- Voltyn · ph · 2026-10-06 · 1 upvotes · similarity 0.49
- Extra Cup · ph · 2026-10-06 · 1 upvotes · similarity 0.46
- Rein · ph · 2026-10-16 · 1 upvotes · similarity 0.45
Other launches for this product
- No other launches for this product.