Board Thread:General Nerf discussion/@comment-27306930-20160213061357/@comment-27306930-20160217143754

Yup, my very first OMW kit was a 7.4 volt upgrade for my RapidStrike. It came with 2 TrustFire 3.7v batteries, a couple dummy batteries, AA to C adapters, and a TrustFire charger. The only thing I don't like about the TrustFire batteries is they're a millimeter longer than AAs. It's kind of a pain to get them in the blaster.

I've bought a number of those On The Way batteries, and they seem to be fine. And they're the same size as AAs. But you'll need a 4.2v charger.