itdoesntmatter
10 µW
Hi all,
I decided to take on a project of adding two Kugoo M4 48v/500w motors to a Razor E300 but I'm a little confused about the Amp controller/battery correlation, so before I buy another controller, I hoped someone could guide me.
I have one cheap but seemingly good quality Chinese controller which is rated at 31amps. The plan was to buy an identical one and run the two together (one for each hub motor). They would be powered by Liitokala 32700 LiFePO4 batteries, rated at 35a continuous and 55a max. And they will be in a 16s2p pack, which will double the current....(he says with misplaced confidence)....
On the surface, this seems acceptable but:
1. I'm not sure I trust the battery Amp rating of 35a/55a.
2. I saw a test where the battery reached 62 degrees C/143F when continuously drained at 20amp. 60 degrees C is the operating max for LifePO4.
I am 100kg, the batteries will add 5kg and to get home I have a medium 2mile incline. I typically go at full speed (load) but if the scooter is actually quick (currently overvolting 24v motor), I'm guessing I won't need to go flat out....
So, should I be looking at getting a different controller under 25amps?
Or, do you think the fact there will be two motors and I wont be at full load due to the increased speed, I could get away with the 31amp controllers?
Feel free to shake your head and expose my ignorance! I am not precious about my ego.
I decided to take on a project of adding two Kugoo M4 48v/500w motors to a Razor E300 but I'm a little confused about the Amp controller/battery correlation, so before I buy another controller, I hoped someone could guide me.
I have one cheap but seemingly good quality Chinese controller which is rated at 31amps. The plan was to buy an identical one and run the two together (one for each hub motor). They would be powered by Liitokala 32700 LiFePO4 batteries, rated at 35a continuous and 55a max. And they will be in a 16s2p pack, which will double the current....(he says with misplaced confidence)....
On the surface, this seems acceptable but:
1. I'm not sure I trust the battery Amp rating of 35a/55a.
2. I saw a test where the battery reached 62 degrees C/143F when continuously drained at 20amp. 60 degrees C is the operating max for LifePO4.
I am 100kg, the batteries will add 5kg and to get home I have a medium 2mile incline. I typically go at full speed (load) but if the scooter is actually quick (currently overvolting 24v motor), I'm guessing I won't need to go flat out....
So, should I be looking at getting a different controller under 25amps?
Or, do you think the fact there will be two motors and I wont be at full load due to the increased speed, I could get away with the 31amp controllers?
Feel free to shake your head and expose my ignorance! I am not precious about my ego.