Albie72 said:
Thanks for ur reply but the problem I'm having is when I ordered the motorcycle I told him that I was going to buy a 120ah lithium because they only had a 80ah. He told me that I have a 10000w motor and controller will handle the bigger battery. I'm looking at it like a rc cars I'm into. If I have a 10000w motor my controller should handle the motor and bigger battery just like if I bought a brushless system my esc should handle a 3 cell lipo or 4 cell
The seller is correct, it will handle a 120Ah battery. It can even handle a 1200000Ah battery if you wanted to.
No offense, but you are the one who asked an incorrect question, 120Ah is not a measure of power, it is a measure of capacity. Any capacity can be handled by any system, you can consider capacity being the same as the size of a petrol tank on a gas car: any engine can handle any size of fuel tank, it doesn't really matter (to some extent of course).
You really need to do a bit more homework to fully understand how it works, this is the second time you are doing this mistake. Especially if you intend on selling these bikes someday. :wink:
Again, I mean no offense here, just be sure to understand what you are talking about before taking your frustration to the seller of the bike, he will not take you seriously if you are complaining about stuff that doesn't make sense.
For example here you are also mistaken between capacity and number of cells... In your example the number of cells determine the voltage, not the capacity.
There is too much of a knowledge gap right now between you and the manufacturer, you need to take some time to fully understand how things work.
amberwolf said:
No, you may have a controller set to 3000w, but you can't know what the motor actually is unless it has labelling on it with specifications, or a motor model number and motor manufacturer you can then locate and get the motor manufacturer specs for.
Not even, he has a controller set to about 8000W right now (72V 150A battery 330 A phase, I say 8000W as a very conservative figure, it is more about 10KW in reality). :wink: