We actually have 2 models coming out. The first one coming out is in the same case as our 4000 but it will be black and will have 12 gauge wires with a Deans connector. The other model will be in a new case has flat ends instead of rounded and will not have the bumps on the bottom. This pack will have 4mm tubes directly soldered to the cells tabs. I'm not sure when the new case will be ready but it should be ready soon. The price will be around 15 dollars more.