Underdog v2 stainless steel performance problem

[Amnelka]

I have the stainless steel version of the mod for the last 2-3 months.

It's performing very well with fully charged battery however when the battery goes to ~3.7V it's worse than sub-zero x with 3.4V battery in.

I expect it'll be cleaning contacts that's needed - what's best product to clean contacts and stainless steel tube? I have brasso but I'm not sure if it'll be fine for steel. Spring is clean.

Thanks for looking and words of advise!

Update from a moment ago - hardly any power on 4.16v

 

[mattyk2010]

Its a SS mod so you can clean the threads with water and a toothbrush any copper or brass use brasso then get some autosol for the threads to keep them tip top it should help but don't expect it to be as good as a brass or copper mod as I don't think it will ever be [emoji5]

 

[EmbraSewerRat]

Isopropyl alcohol is also worth it for scrubbing threads.
At a push some acetone or if you can get any some alcohol based hand cleanser.

Another useful bit of kit is a fibreglass pen ( eg: http://www.ebay.co.uk/itm/Fibre-Gla...724919?hash=item1a045368f7:g:EqgAAOSwDlxU3Ldn )
Cheap, small headed toothbrushes are also a good investment, as when you use the other half's toothbrush they get grumpy....