I just discovered that a piece of 3/4" gray water pipe fits an 18650 perfectly into a 26650 tube, and with a drill press and a 7/8" bit can fit a 21700.
by Terrible_Lion_968
I just discovered that a piece of 3/4" gray water pipe fits an 18650 perfectly into a 26650 tube, and with a drill press and a 7/8" bit can fit a 21700.
by Terrible_Lion_968
2 Comments
https://preview.redd.it/f0lsi8mytsbg1.jpeg?width=3024&format=pjpg&auto=webp&s=a2fc60849914f51e8f528b6774e54ec3f3921ae5
interesting. i just use paper and glue to make tubes and cut .22lr casings when the battery is too short