Terry

As far as I am aware, we are allowed to use them as they are LiFePo4 not LiPo. they are flat A123 batteries at least as far as the rules apply.

7.4 Approved Battery Chemistry for HW

NiCd (Nickel-cadmium)
NiMH (Nickel-metal Hydride)
Pb (Sealed Lead Acid)
LiFePo4 (Lithium Iron Phosphate)

This should cause a few posts