The 1.1 version of BattSafe for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. BattSafe for Mac lies within System Tools, more precisely Battery Utilities. This free Mac application is an intellectual property of Chad Cooling. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
BattSafe is a laptop monitor application that shows your battery status. The program gives you battery charging information and detailed advice on improving battery life and capacity. The provided data include your current battery capacity, temperature, and voltage.
You may want to check out more software for Mac, such as Battery Stats, Battery Checker or Best Battery Manager HD, which might be similar to BattSafe.