Mysterious LiPo (and charging advice...)

[Shorty]

Hi, I need some help with charging this battery I recently bought second hand. (it was in the box of a second hand RTR B4.1) Go easy on the lingo, I'm easily confused!!
Here's a photo, I think it's one of those cheap Hong Kong specials!....

[IMG] R0017473 by Shortopia, on Flickr[/IMG]
Loong Max (or Mai?) Tipple 20C 4000mAH

I'm a bit confused with the cell rating which isn't clearly stated. I can't see a cell count number (ie 2s or 3s for 2 cell or 3 cell), but can I safely assume it's a 2 cell and 7.4 volts

Why does it say 20c, but also 5C in the fiery logo circle? Is this saying I can charge it at 5c?

The balancing connector only has 3 connections, and only fits into my chargers 2s port, so I guess this is another big clue. (The balancing connector must have more connections if it were a 3s battery?)

I am using a new Fusion Ethos LX41B Pro charger. For a basic slow charge what would be my best settings?

And for a race night with 5 minute races, wanting a faster charge, what can I push those settings to?

Many thanks in advance. I'd rather not use my assumptions and get it wrong!