These types of batteries are commonly found in power tools, such as the new Argos simple value drills.
Shakey said in his breakdown of the drills:
"They are LiNiMnCoO2 batteries, the most common type used in powertools. Safer than LiPo, not quite as safe as LiFePo4. However not on the FRA's approved list, I move that this battery chemistry should be tested. It is in the roboteers interests to have such a common battery type available to us."
(http://www.fightingrobots.co.uk/thre...ide-and-review)

Does this mean we are currently not allowed to use these batteries? And is there any chance of them being tested and approved any time soon?