Hi guys what battery would you use for those mid drive kits you see on alibaba or ebay? If you're in Europe, what's the cheapest battery you can buy? Wasn't someone using their laptop battery as a cheapy way of charging the kit, or was I dreaming? Where can you find a 36v battery or 48v battery in Europe for these kits? Buying from China costs 400 euros plus vat tax plus paperwork or antidumping risk.