Why should you cover up the metal clamps of the battery canister of your tank light? Answer: The parts come very edgy from the factory. That really doesn’t go well with scuba gear.
Here is just an example how my gear has suffered from the two clamps. The picture is showing the exact position of the wing laying directly on one of the clamps
You can find out here how to easily solve this problem:
Step 1: Cutting some bicycle tube
For covering the clamps use bicycle tube for a road bike. Measure how much bicycle tube you need to cover the screws of the clamps. Don‘t be to stingy doing that! Next you can open both screws with a screw driver and remove both clamps from the battery canister.
Step 2: Pulling the bicycle tube over the clamps
Fit the two short bicycle tube pieces over the clamps. Position the clamps around the tank and tighten them. Hint: Make sure that both clamps are parallel to the tank again. Should the bicycle tube get in the way while you are screwing, wait until positioning it over the screws until you close the clamps.
Step 3: Tighten the screws
Tighten both screws. Careful: Do not overtighten them! The two clamps look sturdy but that does not mean they are unbreakable.
Your modified battery canister should look similar to this with the two little bicycle tubes at the end. Since using the two sheaths I have not had any problems with abraded parts on my scuba gear. Easy, but effective!