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getting really frustrated that it seems like such a huge percentage of batteries out there are sharks, i prefer the look of the silverfish, especially my black one, but I might switch for convince. The primary thing that scares me about that is that my bike is a folder, so there isn't a...

Definitely started with google on this, but it can be so hard to determine what is quality and what isn't, once the battery is wrapped it is hard to learn anything about it, I posted here to see other people's experience haha. Like when you're buying a pre-made battery there's no real way of...

there is current flow literally everywhere I have tried, which is basically everywhere possible at this point haha, the voltage is just drastically reduced any time the 1 problematic cell comes into play. Think I'm ready to accept that there is a dead cell and go cry myself to sleep hahaha. Any...

I have a decent understanding of the battery itself, the BMS is where i get confused, that is all im really looking for advice on. If there wasn't a BMS it would be clear as day that it would be the cell, but from what i do understand I agree that it is looking like the battery itself where the...

Sorry, tone didnt come across right in that post (still waking up and am terrible at communicating through text in general) I didn't intend to sound unappreciative, just trying to understand what info you need/how i should interpret my readings, I dont know what else to say or check. If it just...

I dont understand how this was supposed to show us anything we didnt already know. We already knew that my charge and discharge ports were both getting power readings and that 1 cell was significantly lower than the rest, i did those checks, but they obviously just mirrored those same...

What i've been looking for is how to test the BMS. I have no intent on replacing cells if they are damaged. Any bad cells and this whole thing goes bye-bye, but if a simple BMS swap gets me back up and running than im willing to do that

Is what you're saying here that a bad BMS ruined the cells permanently? Lovely haha.

So I finally broke down and cracked the wrapping for the battery open and checked the individual parallel loops. I'm having trouble diagnosing, but my gut reaction is to assume the worst and that I have a dead cell, but I really have no clue Battery is in 13s4p, there is no noticeable physical...

popped the battery out of the case for now, nothing looks out of place, not that i would expect it to at this point, going to see if anyone else responds on here and maybe unwrap it in a few days. with the size and shape for a brief moment I thought it was a stack of Li-Ion packs and I got...

Alright, so here's the full backstory: I bought a bike built by some enthusiasts who enjoyed building/selling e-bikes, the battery came with this, so I do not have much history on it beyond what i can see. First frost 2019 it didnt seem icy at my place, but on my commute to work there was some...

also the charge battery is supposedly a 48v battery, so the 48v at the charge port makes sense to me, not sure the deal with the 52v

hhmm so not getting a stable reading off the charger at all when it is plugged into the wall and never even approaching 54.6v, jumping between 5v-28v, so maybe my charger is junk?

Connector read 52V, charge port read 48V. all connectors are clean. I would assume if I am getting the proper voltages then that means the batteries themselves are just fine and that this would be BMS, yes?

So my bike has been out of commission for a while and i finally got everything fixed and tuned up. The controller was booting, the motor was taking off with both the pedal assist and the throttle. I finally take it out to go for a ride annnndddddd... the battery immediately dies. The battery...

No worries, anything is appreciated 😁 I guess there must be differences in how some controllers receive/interpret signals from the throttle or something? You'd think it'd basically just be a potentiometer on these super basic ones with no other functions, but that'd be too simple for ebikes haha

I don't see how that diagram shows you how to test this? Just because i know what wires are ground, power and signal on the controller end doesn't assist me with matching up those wires with their mating wires on the throttle end. Either way, my question is not how to troubleshoot what I...

Hi all, I basically just replaced my entire ebike minus the frame. I loved my old throttle(half handle) and really want to replace the one the new kit came with (thumb throttle). I cut open the wires of both the old and new throttles to see the number of wires in there and see if things...

Hi All, I'm in the market for a second Silverfish battery, anyone know of a reputable source i could buy a battery off of if i gave them the specs i need? Thanks, Steve

Oh i know they aren't garbage by any means and pretty much every e-bike motor in existence is made in China, but there are some better brands than Bafang out there(i was hoping to find a Dapu, but couldn't find a 750W and wasn't feeling like buying a new battery too lol).