This is very interesting and may show this 10 ah battery is underpowered.[/QUOTE]

hi Richie,
Yes i agree, i got a second battery pack too and was a waste of money. It just makes the bike heavier and does not double the range at least not for me. Theres a lifepo4 36v 10ah on ebay right now from foxx batteries for $374 free shipping and includes bms & charger (good deal) I wanted it but wont have cash in time, things are ruff in florida right now lol