no not aa batterys do the maths each single aa is 1.5 volts x by 4 = 6V . 7.2v nihm - one battery/cell is 1.2v x by 6 = 7.2v so its a six cell battery . the battery i need it for is a reedy wolf pack 7.2v 3000mah. exelent battery perfect for brushless but kills brushed escs all the time.
This tube is listed as 50mm diameter. Note that this is the expected final shrink diameter. Tubing is shipped as 80mm diameter. Shrinks down to 40mm diameter, very good quality. Be aware that this tubing is much thicker than what comes on Lipo's so if you use this on batteries, it will add a fair bit extra weight.