So basically i have a ebike with a ananda d16 display, a ananda b5 controller, a m150sd motor and a 48v battery. I wanna buy a new controller and display so i can get some more power and speed. Which controller kit would be compatible with these parts?
Which controller kit do i buy?
- Thread starter mxlann
- Start date
Does your 36v battery still work, and do you still want to use it? do you want cheap and chearful or a nice control system? How much extra power do you want?
What do you mean 36v? its 48v, but i would want something thats under 100 euros. The motor i have right now puts out something like 900 watts. If possible i would want 1000 watts or more.
Are you sure about that? 900w output is 25A at 48v. Ananda says the B5 controller is 20A max, and that's probably at 36v. Is there a label on it indicating the max current?
Once you go over 20A at 48v, pedalling is a waste of time, so you don't need a special controller. For 1000w output, that is going to severely stress your motor, you need a controller with a max current of 26A to 28A - a 12 MOSFET one. All controllers work the same. All you need to do is wire them up right. Different ones have different optional features, so choose one that has what you want. Always buy the matching LCD with it if it has one.
Another important consideration is your battery. Can it supply more than 25A continuous, which is what you'd need. Most can't!
The battery can output 40A continuous. But no, there is no label indicating max current. On the display i can see the amount of watts the motor is outputting. The highest ive seen it go is something like 916 watts.
The watts on the display are INPUT power. It measures the voltage and the current from the battery, then multiplies the two together. Output power would be about 70% of that in ideal conditions. When climbing hills and starting off, it would be around 50%.
916w is 19A from a 48v battery, so you probably have an 17A controller. The B5 comes in 15A,17A and 20A variants. When your battery is fully charged, it would be about 52v when delivering 17A, which would be 884 watts. 20A would be over 1000w.
Your motor and battery should be able to handle 22A, which is what I'd choose because they're not too big. If you feel lucky, you could try 25A. Get a KT brand sinewave one. They're all over Ebay, Amazon and Aliexpress. Topbikekit does the 22A for Hailong batteries if that's what you have, and the aluminium box type. You can get the whole kit from them. Makesure you buy a KT LCD to go with it, and if you get the waterproof connectors, you should get the PAS and throttle too if you want plug and play.
Could you maybe send a link for a controller? i dont know much about which are good and which are not.
How much space do you have for installation?
Whichever one you get, you'll have to do some wiring and soldering. Are you OK with that?
Im not sure how much space i have, but im ok with soldering and wiring. If the controller could use WP connectors it would be nice.