Thats great news.
Perhaps the contact on the two pin charger dropped a fraction of a volt off, enough to tip it low enough to look like a 7s pack.
Hey - if you think you've now got bulk charging and 'separate pack' balance charging under your belt, there is still a little to learn (as I just found out). Don't worry about this next bit if it's too soon. But I think it will save me a lot of time, cos I run three packs in parallel, and they are a bit of a pain to disconnect and balance charge in turn.
You can set up your pack to balance charge your whole pack without separating the cells first. I've just been researching this - didn't realise it. Makes good sense.
The way it works is that you balance each pack seperately (two or more) to get everything to about equal before connecting them up in parallel. This stops a sudden rush of current between cells when connecting the packs in parallel for the first time - see link below (you wouldn't connect a 50% charged pack with a 100% charged pack for instance). Then you connect the same pins of each of your balance cables. This means that if you have two packs, 'cell one' on each pack will equalise, 'cell two' will equalise, etc for each in turn. Then you reconnect and balance charge the whole unit.
So next time you go to balance charge, you only connect one balance cable. It'll take twice as long to balance charge for a 2 pack battery, but you won't have to disconnect separate packs anymore.
Think I am going to build a three into one balance harness that will allow me to bring one balance plug out of the battery box next to the 3 pin bulk charging plug, so I don't have to keep taking my box apart to balance charge every 6 weeks...http://www.rchelicopterfun.com/parallel ... rging.html
Hope this didn't confuse you...