Charge Limiter
Set a hard maximum — 80% is the sweet spot. Your MacBook stops charging the moment it hits the limit. Studies show batteries maintained at 80% retain up to 40% more capacity after two years.
macOS 14+ · Apple Silicon & Intel
Your MacBook battery
deserves better
Lithium extends battery lifespan by up to 40% with intelligent charge limiting, real-time health monitoring, and automated care — living quietly in your menu bar.
- Notarized by Apple
- No SIP Required
- Runs at Login, Silently
- Open IOKit, No Root
- M1 · M2 · M3 · M4 · Intel
Free
Everything you need
Everything you need
to protect your battery
The core feature set is free, forever. No account required.
Live Battery Stats
Real hardware readings — temperature, cycle count, max capacity, power draw. Not macOS's adjusted estimates.
Manual Discharge
Run on battery even while plugged in. Bring an overcharged battery back to a healthier level with one tap.
Live Menu Bar Icon
Glanceable status — charging, discharging, limit reached, heat warning — all visible in your menu bar at all times.
Pro
Advanced automation
Advanced automation
for serious users
Set it once. Lithium handles the rest while you work.
Heat Protection
Pauses charging automatically when your battery exceeds a temperature threshold. Protects chemistry under load or in warm environments.
Sailing Mode
Define a charge floor. Battery only recharges when it drops below the floor — eliminating micro-charging wear. Example: limit 80%, floor 75%.
Auto Discharge
Automatically begins discharge whenever the battery creeps above the limit, no manual intervention required.
Calibration Mode
Full automated charge/discharge cycle to recalibrate your battery management system. Recommended every 3–6 weeks for maximum accuracy.
Smart Schedules
Time-based automation for any battery action. Charge to 100% before Monday meetings. Calibrate every Sunday night. Your rules, your schedule.
Apple Shortcuts
Full Shortcuts integration with 10 actions — get stats, set limits, trigger calibration, top up. Automate Lithium from anywhere on your Mac.
Power Flow Diagram
Animated real-time Sankey diagram showing exactly where power is going — charger to battery, battery to system, or both simultaneously.
Top Up
One-tap override to charge to 100% before a flight or long day away from power. Automatically returns to your limit when unplugged.
Up in 30 seconds
No configuration wizards. No system extensions to approve.
-
Download & open
Download the .dmg, drag Lithium to Applications, and open it. macOS Gatekeeper clears it automatically — no SIP changes needed.
-
Set your limit
Click the menu bar icon, drag the slider to 80%, and you're done. Lithium writes the limit directly to your battery's SMC chip.
-
Let it run
Lithium launches at login and runs silently in the background. No Dock icon, no interruptions. Just a healthier battery, every day.
Simple pricing
Start free. Upgrade when you need more.
Free
$0
Forever free. No account required.
- Charge limiter (20–100%)
- Live battery stats
- Manual discharge
- Menu bar icon & percentage
- Launch at login
Most Popular
Pro Annual
$9.99
/ year
3 devices · Cancel anytime
- Everything in Free
- Heat protection
- Sailing mode
- Auto discharge
- Calibration mode
- Smart schedules
- Apple Shortcuts
- Power flow diagram
- Top Up override
Pro Lifetime
$19.99
once
3 devices · Pay once, own forever
- Everything in Pro
- All future updates
- No recurring fees
All purchases include a 7-day refund. License keys delivered instantly to your email.
Frequently asked questions
- No. Lithium communicates with your battery management system through Apple's official IOKit framework. No SIP changes, no kernel extensions, no elevated privileges.
- Yes. Lithium supports every MacBook — M1, M2, M3, M4 (and later), as well as Intel models — running macOS 14 Sonoma or later.
- Lithium-ion batteries experience the most chemical stress at high states of charge. Batteries kept at 80% retain 20–40% more capacity over two years compared to batteries regularly charged to 100%, according to multiple independent battery research studies.
- Yes. Apple's Optimized Charging is a black box — it learns your schedule and occasionally delays the final 20% of charge, but still charges to 100%. Lithium sets a hard limit at any percentage you choose and gives you full visibility into what your battery is doing at all times.
- One license covers up to 3 MacBooks. Perfect for a personal laptop, work machine, and a shared family Mac.
- Lithium requires macOS 14 Sonoma or later. It is optimized for macOS 26 Tahoe and takes full advantage of the Liquid Glass design system on supported hardware.
Start protecting your battery today
Free to download. Takes 30 seconds to set up. Keeps paying off for years.
Download Lithium — Free