Thanks. What will the increase in amps do?Ebikemarketplace.com rebuilds these at 17 amp.hr, but the cost is prohibitive and I am not sure how they manage the control connections. You might consider trading your bike in to Upways and picking out a current used one, rather then spending $700.00 on a new battery for a motor that can't be supported anymore, that's just my absolutely unasked for opinion.