Looks like the cells may have dropped too low to trigger the full charge current. In that Device Monitor window try doing Diagnostics > Advanced > Perform USB Recovery Charging. Some people have had luck using an external lipo balance charger to bring the packs back, but that's not for everyone, especially if you have a device warranty. Either way, that is lower than I am normally comfortable with a pack getting, but you should be okay as long as the pack doesn't puff or anything. edit: I saw that you were already doing a recovery charge, sorry for the pointless advice.