Just received my Volt. I read where someone on here said they let their Ego charge for 8 hours for first charge even though it showed fully charged prior to the 8 hours. There is nothing in the instructions for a minimum charge. I have the 78mm battery. Is there a minimum amount of time to charge to make sure it gets a 100% for the first time? I know most Ion battery operated equipment works this way and is found in instructions.