Which type of Deoxit is best ?

[Dave Frederickson]

I currently have five flavors of DeoxIT in my arsenal.

D100L: Red, Cleaner, 100% concentration, liquid
D5: Red, Cleaner, 5%, aerosol
G100L: Gold, Preservative, 100%, liquid
G5: Gold, preservative, 5%, aerosol
Battery cleaner: Red, D100 liquid, incl. applicators

The aerosols were acquired first and work well on things like old TV tuners. For our restoration projects the brush-on liquid is a lot less messy.

For battery contacts the D100 or the D100 battery cleaner followed by G100 preservative is the way to go.

If that doesn't do it, check out this thread from EEVBlog:
http://www.eevblog.com/forum/repair/corr...d-battery/

Dave