Can 8.4V NI-MH Battery (7-cell, 700MAh) be used in LAMA V3?

Hi experts,

     I have several packs of 8.4V NI-MH Batteries (7-cell, 700MAH) which I used in E-SKY 004. I would like to ask can 8.4V NI-MH Battery (7-cell, 700MAh) be used in LAMA V3?

     I am worry the voltage will be too high. 8.4V NI-MH battery will up to around 10V just after full charge.

     Many thanks for your help.

no, it is too heavy.