Recent content by c111jp

I did phase identification couple of times already but no changes really. Just to clarify, controller doesn't get very hot but just warmer than my generic controllers. I would say about 45c in normal use vs about body temperature for generic controllers. Noticed there is controller temperature...

Ok, I've got the controller and here are my impressions so far in case somebody is trying to decide whether to ditch their usual chinese controller for something more $$ like this. I also have few questions below related to programming options etc. First of all, the thing is TINY! It's way...

It says "Configurable limit for motor current and battery current" so I guess current is adjustable. The more reason to be able to program the controller. I think being reasonably small controller it wouldn't need the precharge for 48V but I could be wrong. Never had any problems with my...

Hi, sorry for yet another controller thread. I am looking for controller when this Kelly KLS4812S popped up locally for sale. It's apparently used only for a week, size is pretty compact and it seems to be quite better than generic chinese controllers. Since it's programmable, I don't know...

General opinon is that kapton is pretty poor at heat conductivity so that was the main reason for swap to silpads. I couldn't find any conclusive numbers on thermal conductivity though as there seems to be more types of kapton. FETs mount on the bar and bar screws into case on this controller...

Sorry for spamming but I've figured it's better to record the sound than trying to describe it with 50 different onomatopoeias lol. I've tried to remove the wind and isolate the sound in post processing as much as possible . In the video I am "opening" and "closing" throttle to provoke the...

Ok, I've got the new controller. It's XLD Brainpower LSD149. It's a slight upgrade in any way over old one and it's of same size. It's 15Mosfet vs 12Mosfet on old (and fets are rated higher). It has regen connector so connecting it will enable regen, disconnecting it will disable it. The...

Thanks, all great info here. Looking at it a bit better, 2.8 is definitely pushing it but 3.0 should be fine for emergency (vs 3.2 now). Just to be clear, cells will hardly ever see less than 3.3v and more than 3.9v in my day to day usage but was looking into removing LVC for "emergency"...

Got reply from another seller which is selling same controller and they too said it doesn't have regen. I've decided to skip on it. I've received XLD Brainpower one and it's going to be more than enough. It already has regen, self learning, speed connector (which is just basically bridging K1...

I've bought a XLD Brainpower LSD149 controller. On the case, lower voltage is indicated as 42V for 48V battery. That's 3.2v per cell. I have Samsung 50E that can go safely lower than that so I want to lower or ideally remove Low Voltage Cut out entirely. I also have Bluetooth BMS so I can...

Yup, wanted to write controller/ motor (since winding will also affect it). What I want to say is, I don't want controller to stand in the way with limiters, or at least as little as possible. Anyway, got this controller in the meantime since it was locally available while I find a "perfect"...

Thanks for your input all. Interesting since the seller selling it is named KT (Kunteng) https://www.aliexpress.com/store/911380051?spm=a2g0o.detail.100005.1.468660e3CLudf3 So fake profile? Does anyone have a real source where I could get their controllers? Or can somebody recommend something...

Does anyone know anything about these 30A KT controllers? https://www.aliexpress.com/item/1005005342199746.html?pdp_npi=3%40dis%21USD%21US%20%2426.03%21US%20%2420.30%21%21%21%21%21%402101c5b116821775336528932ef997%2112000032681124083%21im%21%21 I'm linking the one from other seller but KT is...

Thanks everyone for your input. Issue is "resolved" so here's an update. The magnets in the motor are all rock solid and there are no rubbing traces. My controller has no self learning wires and on the board, only thing that looks like it could potentially fit the description are 2x Q right...

Ok, I've did a mistake. I ignored my "If it ain't broken, don't fix it" rule and now my bike is giving me headaches. I have a direct drive rear hub motor. Last time I rode it was few months ago and it was working perfectly fine. In the meantime I've did following: Upgraded to new battery...