Recent content by lookinglikejesus

update: charged to 100%, same issue has occurred, group 1 pretty much untouched at 4v, 2nd group way below the rest, and groups 3-20 all balanced between eachother. I'm pretty sure something is wrong with the pack and am seeking a new one immediately, most likely not even worth it to try to...

I emailed EM3EV who said they no longer make custom batteries and the highest voltage they go up to is 14S. I've heard about ebikes.ca, I guess despite the price, they don't offer the amount of parallels, I'm looking for at least 20amph, probably around 25amph.

Appreciate the information. Do you know of any reputable battery builders that can make a battery like this safely? I'm located in the tri state area (NYC) and would prefer to get something locally, but if I would need to buy one shipped that would help. I've heard of lite speed in New Jersey...

Hi, I've owned this 20s custom battery (made with boston power cells) for 3 years and it's older than that by a few years, I've only given it 180 cycles. I've never had issues with the battery itself, but last night the BMS cut off 3 times and after inspecting it noticed group 1 was at 4v...

Now that you mention it, it's always been kind of noisy. I do know that I've used the tester on it, for this set of halls and the halls were shown to work perfectly. One thing to note is that, I had to make "converter" type connector to connect the controller and the motor's halls. The motor...

Ah okay, didn't know that. So the controller is still fine, by the way. I'm running it hallless mode, in fact I can't even tell a difference without the hall sensors plugged in. The ebike tester doesn't show the 5V controller light come on, but the controller still works so not sure what that...

appreciate the response, Im mostly trying to understand what happened. So yes, what I mean by the lights "stuck" and "frozen" is, yes they are not changing state at all. Two of them are always on, one of them is off. However, for the spare hall this isn't the case. All of them work. It is...

Hi, so recently the positive end of discharge connector on my pack tore and that damaged my controller, which I will replace. I have the ebike tester device (the generic chinese one) and it showed that the coils on the motor are fine, but the halls for the main hall sensor showed two lights...

Latest update: Got it working by using a cheap, $30 controller from Ebay that runs with and without halls. Actually running it with halls too. The motor is working perfect, seems like the controller was the bad part the whole time.

Honestly not sure, ebikes are certainly not my expertise. All I recall is to put 16 in that category because the QS 205 has 16 pole pairs. Anyway, update. So I was able to connect the tester to the device into the motor by simply sticking ends to the back of the 6 pin connector of the hall...

So I've purchased the "ebike tester" device ready to test out the hall and phase connections on both the motor and controller. Controller might be a complete dud, motor will be interesting. Only thing is, the connectors on both are different, with the tester having the standard 6 pin and the...

Appreciate the advice, I'll check out the link. Starting out with the lowest hanging fruit, the battery connector. Voltage is correct, 80.3V on the actual discharge connector as well as battery + and - on the controller. Light just doesn't come on, might change the connector and see if that does...

ok understood, thank you. I somehow was able to get in contact with someone in possession of a few Sabvotons who also has experience with these types of bikes. My biggest worry is the motor fried or something. I'll reach back on Wednesday and update what he says. All I remember is the motor was...

Hi all, I made 2 previous posts troubleshooting the damn bike. Finally I was able to configure a 50H QS205 V3 with a SIAECOSYS 100A controller (sabvoton clone) by passing the hall test, putting the correct parameters (245 hall angle, 16 poles, etc.) By putting it into the spare halls, I was...

They're Boston Power 5300 cells, I purchased this from someone who built it so not too familiar. 20S and I think 5P? Amperage is 25amph roughly, probably the motor h I do know the battery is 4 years old at least. To get rid of this issue I would need a bigger battery with higher amperage I'm...