I just picked up a starter with a LiPo 2200 battery which I will likely use now, if it is strong enough to turn over my motors. Your box looks similar to mine, but mine has the removable starter/power panel. I like that aspect, but the rest of the box just seems too heavy for what it is holding. Those other boxes I tried over the years were either too heavy, or I could not get the starter in, like for the plastic ones. The red and white wood one was fairly good, and is much like yours too. I have a few sets of 2C A123 batteries 6.6V. I like those, fairly safe and they work well in a brushed glider I have. (Amptique) I am still not a fan of LiPo after a fireworks display I had.