Great question but it like asking if a lifepo4 pack really needs a BMS. Everyone is going to give you their opinion but no one has any real proof as to the values of what they are telling you. No offence gang....But with the possible exception of jet having a charger tht actually has a special charge point for storage does anyone have any real facts? While I have heard that they should be stored at 50% I personally story them at full charge and check them about mid way through the winter. Not saying this is correct but until someone can show me proof that show why I should store in the summer time at full charge and at 1/2 charge in the winter I'll stick with what I'm doing. However, I have also heard that if your not going to use your packs for a period during the summer you should drain them down. I have also heard that you would be better not to recharge after use until just before you use them again. Like I said prove it to me that it's the better way.......

Bob