Which zippy pack or truerc somewhat affordable lipo question

[SypderFungus]

Originally Posted by e-rev project

ok what do the letters mean, i thought r was for racing?
im back to confused what are the dimensions of the tekno battery tray?
i forgot about size

thanks

From the tekno site: "150mm x 50mm" but mine is more like 148 x 50. The end lips are verticle but the side lips are at a slight angle so the base is 50mm but it gets wider. I hope thats understandable and it helps some.