I ordered 70 battery packs from Battery Source. These are used batteries. I had forgotten exactly what I had ordered when I was making the video. These batteries are nearly or like new and have over 90% capacity (most of them) according to their website.I am excited to get these. I have 30 lithium polymer batteries rated at 4 volts and 4.4 AH and I have 40 battery packs with two 18650s in them.The modem battery packs have a nice little BMS circuit inside. This is a bonus. I get two 18650 batteries rated at 2.2 AH and a BMS. I will most likely leave them all together with the BMS when I make battery packs for my projects.The flat packs have two cells in them and also have built in BMS circuits to protect the packs.I am torn between building portable power packs which I can use anywhere or building packs to power some motor scooters that I have. These are the scooters with seats like a moped. Maybe I will try to build the packs so I can use them either way.The Do It Yourself World LLChttp://www.thedoityourselfworld.comGet off the grid for $5,000 or lesshttp://www.theoffgridproject.comDIY Tube Video CommunityYour alternate video sharing communityhttps://diytube.videoGet help with your projects or share your experienceshttp://www.thedoityourselfworld.com/forum/