This new battery is a little larger than a typical AA battery so you can fit this into thinner tubing and tighter spaces.
This battery will fit tightly into a tubing with inner diameter of 0.6in such as the #58017 sold at USplastics.com.
It will last about half as long as our standard battery.
Specs: 3.2V 600 mAh
Dimensions 0.625″D x 2″L
Cost: $16
You can buy this item from our accessory page