I had a couple of automatic eGo batteries temporarily out of action due to leakage from cheap ce4s. A quick cleaning of the contact area with alcohol and a Q-Tip, then drying overnight, always brought them back ...
If you like eGo style, check out the eCab. Clear tank to check juice level, and minimal chance of battery contamination. I like everything about it except the small button, its hard to find in the dark ...
Just this morning, I accidently flooded my eCab by installing a tank without the silicone end cap (duh), it dumped about a ml of juice around the atomizer. But the o-ring around the atty seals the battery contacts, just a better design ...
Or if you really like an automatic (I do), take a look at the eRoll or Ovale eMini (same thing). The battery is also protected by an o-ring around the atomizer base, unlikely to leak onto the contacts, although it can happen with a thin hiigh-PG juice ...