Originally Posted by Roelof

I am still using NiMh because of some bad experiences with LiFe batteries, the balance cable with all was floating arround comming between the belt or even under the chassis. And with one it did not survive the winter stop. So back to NiMh with which I can do 3 years w/o any issues. Even no hussle with taking it out and charge it in a LiPo back as most rules do say about Lithium batteries.