Here's the math.
- Basic Salvage Kit w/25 charges = 88c
- Value Per Charge = 3.52c
- Use 24 charges (84.48c in value)
- Sell the Basic Salvage Kit w/1 charge (which should only be worth 3.52c) back to the vendor for 11c.
This is trivial... 7.48c in savings every time you need to burn through a Basic Salvage Kit... but may help a few folks when they're first starting out.