Provape-1, stackable batteries?

[PsychOfMSE]

I am new to the mod world and was wondering if the Provape-1 can use any other battery combos to produce other voltages or if it's limited to 3.7v?

Thanks guys!

 

[-GR-]

I am pretty sure the Provape 1 is restricted to 3.7 volt. Even if you could stack batteries I think the safety features built in to the electronics would cut the power.