Battery pack heat shrink tube is too large

What size heat shrink tube for 68mm battery?

For a 68 mm battery, the heat shrink tube should be about 3 mm longer than the battery at both ends, which is a 71 mm tube. The new tube for the battery has been cut to size. The old heat shrink is removed using fingers, not a knife or scissors.

What is a heat shrink tube?

Heat shrink tube is indispensable for making well insulated, waterproof (more or less) repairs/mods to electrical wiring on e-bikes, appliances, cars/boats, anywhere you find wires. Electrical tape is fine for a quick temporary fix but shrink tube is much better in terms of durability and waterproofing and it's much easier to Login or Sign Up

How do you heat shrink a 18650 battery?

To heat shrink a 18650 battery, first ensure the wrap is on and aligned appropriately. Then, use a heat gun or blow drier to apply heat. Carefully apply heat from top to bottom of the battery and rotate it as you do this. A few seconds of heat should be enough to shrink the wrap in place, but too much heat can melt it.

How do you measure a heat shrink?

Heat shrinks for batteries, such as those for a 18650 battery, are typically measured by their flattened width. This is because they come flattened on a roll, making the measurement simpler.

What should I know about heat shrinks?

When dealing with heat shrinks for 18650 batteries, it's essential to be familiar with their different sizes, which are typically measured by their diameter.

Should I use electrical tape or shrink tube?

Electrical tape is fine for a quick temporary fix but shrink tube is much better in terms of durability and waterproofing and it's much easier to use than tape. I use a lot of shrink tube and find it's not cheap.