Well I looked up intellipeak chargers and it seems to be a good unit.I couldn't find a source for the manual however.On all my chargers a flashing light usually indicates the charge is finished with.Read the manual that came with the charger for info.If it's an automatic charger...meaning it picks the charging routine for you it shouldn't take 10 hours for a 3000 mah pack to charge.It should be around 1 hour plus or minus depending on current .

Really no need to slow charge a 3000 nimh IMHO