So one the weekend my son wanted to run his 2wd Slash plus my 4x4 stampede, so I charged up afew batteries for him. Well I missed one of the lipo's and forgot to put it in storage (3.85v) I noticed it today sitting in the garage, so I put it on the charge and noticed 1 cell read 3.53v and the other reads 3.45v. Is this something I should keep any eye one? He normally only runs them down to around 3.80v anyways, the batteries are only about 1 month old (spc 2s 30c 5000mah and a 2s 50c 8200mah)