2017 Radwagon 48v 11.6ah battery alternative

[bsharp316]

I am a decades-long road cyclist, but I'm new to the e-bike world. I am seriously considering purchasing a friend's 2017 Radwagon, but his 48v 11.6ah battery will not charge over 50%. Radpower says they are out of stock of the 11.6ah batteries and also keeps any of the 11.6ah batteries they do get for warranty issues. Radwagon also says their 2018 and newer 14ah batteries will not work on the 2017 Radwagon. Has anyone had success upgrading a 2017 and earlier Radwagon battery with a newer aftermarket 48v battery? Will the original controller handle the additional amps? The controller on the Radwagon says its MAX CURRENT is 18amps with a RATED CURRENT of 9amps. I really want to buy the bike, but without a battery, it's no better than a boat anchor to me. Any help or suggestions would be greatly appreciated. Thanks. bsharp

[fin_rad]

A very good question. Ok, if things get really bad, you could always change the cells inside the battery case. Not cheap too, but the last plan B. Good side of these chinese ebike systems, you cannot do the same by yourself f.ex. with the Bosch's batteries.

[Ryan]

Sorry, I'm not sure on the controller. If it were me and it was a great deal I'd maybe look at the Bolton controller along with a battery. There have been a lot of upgrades since the 2017 model. That frame was all steel if I remember correctly.