Personally, i am careful with lithium. They can catch fire due to short-circuit, overload, and it is not possible to get the fire out. Now, most of them probably won't be on fire, but if it happens to be yours, it is also the end of your bike. Lithium burns very fiercly, and water has a dramatic effect on it.

Just my 2 pence.... I would go for Motobatt as well.