Them have a pretty low Mah and will not be lasting, charge-wise, as long as Mikes batteries.
Its because they are LiFePo. Generally they have a more accurate Mah than other types of lithium batteries. That said idk if Mike thought those would fit or not. Im not sure what the measurements are on his batts
alot now just cause of the vapor production from this beast, so im averaging a day before i change them out. and thats not bad at all