Hi all,
Bought an Ebike kit from em3ev a whlie back, the 500W 20". I also bought a 48V 20ah battery from ebay. Connecting everything together and putting on i get the following: when giving throttle i feel a véééééry light torque and after nothing (even when applying throttle: nothing happening). I'm completely new to the ebike world so don't really know what the problem might be. I don't have ebrakes yet or use a hall sensor, but that in essence should not cause the problem should it? I've been extremely busy last weeks with work so i didn't had a chance to watch it yet. I did buy a multimeter, but as we're working with lipo battery's i'm a bit afraid of doing measurements which would cause fire or destroy my battery.
At first, I tried running the motor with a 36V 13Ah battery i still had lying around: the same problem, so I thought it was the battery. After i bought the 48V battery but he same problem keeps on occuring and i don't really find what it can be looking on the net. The motor wires are well connected i guess ( i can post pictures if someone thinks the problem might be there). When looking on how to measure lipo batteries i mainly find things from the RC World and not for ebikes... I have got some tips from the seller, but to be honest, it's all chinese to me. The only thing coming out of the battery are the red and black wire. Can i measure the voltage directly on these with the multimeter i have? As it's not charged i suppose the amps would be low?
I really wanna work on this ebike so i can finally use the kit i bought so long ago. If anyone has tips or knows what the issue might be let me know. I can post pictures and do measurements, but as i'm totally new to this it would be good to have clear instructions. Edit: just measured the voltage at the end of the battery wires i made which are connected to the controlor. It measures 53V...
Thanks in advance,
Bought an Ebike kit from em3ev a whlie back, the 500W 20". I also bought a 48V 20ah battery from ebay. Connecting everything together and putting on i get the following: when giving throttle i feel a véééééry light torque and after nothing (even when applying throttle: nothing happening). I'm completely new to the ebike world so don't really know what the problem might be. I don't have ebrakes yet or use a hall sensor, but that in essence should not cause the problem should it? I've been extremely busy last weeks with work so i didn't had a chance to watch it yet. I did buy a multimeter, but as we're working with lipo battery's i'm a bit afraid of doing measurements which would cause fire or destroy my battery.
At first, I tried running the motor with a 36V 13Ah battery i still had lying around: the same problem, so I thought it was the battery. After i bought the 48V battery but he same problem keeps on occuring and i don't really find what it can be looking on the net. The motor wires are well connected i guess ( i can post pictures if someone thinks the problem might be there). When looking on how to measure lipo batteries i mainly find things from the RC World and not for ebikes... I have got some tips from the seller, but to be honest, it's all chinese to me. The only thing coming out of the battery are the red and black wire. Can i measure the voltage directly on these with the multimeter i have? As it's not charged i suppose the amps would be low?
I really wanna work on this ebike so i can finally use the kit i bought so long ago. If anyone has tips or knows what the issue might be let me know. I can post pictures and do measurements, but as i'm totally new to this it would be good to have clear instructions. Edit: just measured the voltage at the end of the battery wires i made which are connected to the controlor. It measures 53V...
Thanks in advance,