Battery Toolkit

Limits battery charge to an upper limit: Modern batteries deteriorate more when always kept at full charge. For this reason, Apple introduced the “Optimized Charging“ feature for all their portable devices, including Macs. However, its limit cannot be changed, and you cannot force charging to be put on hold. Battery Toolkit allows specifying a hard limit past which battery charging will be turned off. For safety reasons, this limit cannot be lower than 50 %.

Allows battery charge to drain to a lower limit: Even when connected to power, your Mac's battery may slowly lose battery charge for various reasons. Short battery charging bursts can further deteriorate batteries. For this reason, Battery Toolkit allows specifying a limit only below which battery charging will be turned on. For safety reasons, this limit cannot be lower than 20 %.

Allows you to disable the power adapter: If you want to discharge the battery of your Mac, e.g., to recalibrate it, you can turn off the power adapter without actually unplugging it. You can also have Battery Toolkit disable sleeping when the power adapter is disabled.