Hi there, ebike experts!
I've built a couple of ebikes now using cheap China-kits, one 1000W rear hub and one 500W front hub for winter usage. What I want to ask about is my primary build:
These components are working wonderfully together and I am able to get ~ 37mph. But ONLY when the battery is fully charged, and only for the first few minutes. After that the speed drops to 31mph and riding becomes less fun.
Now I'm wondering if the Chinese seller was bragging when he wrote that the battery was suitable for up to a 1500W-2000W motor
What I'm considering:
Note: I live in Norway so overheating has never been a problem.
Looking forward to hearing your advice
I've built a couple of ebikes now using cheap China-kits, one 1000W rear hub and one 500W front hub for winter usage. What I want to ask about is my primary build:
- 1000W rear hub motor, 48v brushless.
- 1500W controller with 3-speed switch
- 48v 20Ah li-ion battery https://www.aliexpress.com/item/Gre...32401868802.html?spm=a2g0s.9042311.0.0.RQyzVl
- Mountain bike with 135mm rear dropout
These components are working wonderfully together and I am able to get ~ 37mph. But ONLY when the battery is fully charged, and only for the first few minutes. After that the speed drops to 31mph and riding becomes less fun.
Now I'm wondering if the Chinese seller was bragging when he wrote that the battery was suitable for up to a 1500W-2000W motor
What I'm considering:
- Buying a more powerful 48V li-ion battery, would that give me the juice I need?
- Upgrading the controller to 60V and get a 60V li-ion battery. I'm already pushing my motor, would this fry it?
- Upgrading everything to 72V components. I've looked at MXUS 3k-motors, would a 10lbs battery be able to power it or would I need something big and heavy? Also, would a regular mountain bike suffice? I live on the 3rd floor so it needs to be portable-ish.
Note: I live in Norway so overheating has never been a problem.
Looking forward to hearing your advice