Pros: Two docks. Easy setting up
Cons: Expensive. Need to repeat every 30 days. Takes twelve hours to charge.
Over the lifetime of your Mac, you'll notice that its battery life slowly degrades. Usually the first step most people take is to bring it in to the Apple Store, where the Genius will undoubtably tell you that the battery is supposed to do this. NewerTechnology came up with a different solution - a device that resets your battery back to the way it was when you got it. It's called the Battery Charger/Conditioner.
The Battery Charger/Conditioner has two slots, one for charging and one for conditioning. You simply put your battery into a slot and it stands all by itself. For extra security you can put a lock down on the side, which shrinks the slot that the battery is in so there is virtually no chance that your battery will fall over. Charging your battery from zero can take about 3 hours, conditioning takes up to twelve hours. If you remove the battery before the process is complete it could damage your battery.
Before I used the Battery Charger/Conditioner my battery had about 1 hour of useful life. The new aluminum MacBooks are supposed to get up to 4 hours of battery life. After conditioning the battery I got a full 2 hours and 43 minutes. This is a huge increase for my battery.
About 30 days after conditioning my battery it degraded again to where it used to be. However, the cool thing is you can just condition it again. I would suggest this for any person who travels, or has multiple batteries.
Overall the Battery Charger/Conditioner by NewerTechnology deserves a 4.5 out of 5. The only negative was that after 30 days my battery will reset and I had to repeat the process.