strange lipo behavior

[bdebde]

If you are storing them for any length of time (more than a couple days) at less than 10v, that may be the problem. I always put a storage charge on mine after they cool down; or at least within a day or two. I have several packs that I have been running for over a year with no apparent loss of capacity.

What are you running these in? What kind of temps on them after a run? If the battery is undersized for the application, that will also cause problems.