Batteries for KWA Ronin T10

[B.Simon97]

Afternoon,

I'm looking about getting a KWA Ronin T10, however unsure on the batteries to use. The manufacturer recommends 11.1 Lipos, however speaking to my local store and using their experience, they have recommended 7.4 Lipos. They state that due to it being electronic blowback, this will protect the longevity of the rifle. My only concern is whether this battery size will make it feel sluggish. 

Any help on the matter would be greatly appreciated.

 

[concretesnail]

If a manufacture says 11.1 I'd go 11.1

As the internals would be designed around that voltage.