With that motivation, he decided he wanted to be an environmental engineer, and found himself in the agricultural and biological engineering program at Penn State University, where he focused on soils and water research.
Update april 2016: The top 3 best sold battery powered weed eaters are the: 1) Black & Decker LST136W. 2) GreenWorks 21332 G-MAX. 3) Worx WG175 MAX. As you can see 2 out of 3 are still going strong since 2014, namely the Black & Decker LST136W and the Worx WG175 MAX, see their reviews below.
The Peg Perego 12V Battery is a Sealed Lead Acid Battery with 12 Volts and 12 Ah, comes with a thermal protector that protects your battery and prevents a short on the battery, the average riding time is around 1.5 hours and the average life time is around 2-3 years.