OK, I remember this now - you had a post thinking it was maybe a prob with the charger a few days ago. Now it looks like its a bad lipo. If another charger doesn't do any better or any diff with this, then I'd suspect its the the lipo. Do you have another lipo you can try with your Passport charger - it it balance charges another lipo, then you'd at least know there is nothing wrong with your charger.

Can you rig up a two prong connector that you could use to charge just the low voltage cell thru the balance connector at low rate like 0.2 - 0.5amp? You can make one from deans mini plug and using a DVM you could tell which pair to connect with on the balance connector. I have a charger that's made just for this and use it in cases like this where a cell won't come into line with the others. Its usually a last ditch effort to save a lipo.


But, it sounds like you may have a cell thats going/gone bad.