Recent content by plateau

Thanks, my dear :) Considering this topic, I guess the JBD is a good choice too. My question is if the second option (https://www.ebay.com/itm/192880341024) is much better than JBD and if it's worth paying more for it.

Thanks, my dear. A long time a go, I bought a JBD Xiaoxiang but the microcontroller fried when I tried to update it. So, I'm afraid of problems with a new one. So, do you think the second one worth it or not? Regards, Pedro Rosa.

Thanks, kdog :) The first one, you need to choose the current before (40 or 50 amps). I think the second one is better but the JBD (the first one) is most popular... so, that's the question :)

Ok ok, my dear. Many thanks :) I think it will reach up to 30A. Then, I hope both mentioned before are suitable. So, which board is better? Regards, Pedro Rosa.

Many thanks for your prompt reply, bro. Well... my eBike project uses a Bafang bbs02b motor (I bought it some years ago on LunaCycle when I was on vacation in USA https://lunacycle.com/bafang-bbs02-750w-middrive-kit/ ). According to LunaCycle it has 750W and 25 amp controller (built into drive...

Hi, guys, how are you doing? I would like to know which BMS is the best choice in my case. My old BMS (a non-smart BMS) has died and I can't spend more than US$80 to buy a new one (preferably a smart BMS). I have found these options...

Hi, guys, how are you doing? Let me ask you a thing: I would like to buy a new BMS to replace the old one (that fried during the firmware update). This seller has some different versions (20, 30, 40 and 60A). So, my question is: if I choose the 20A and replace all chinese mosfets, will I get a...

Thank you so much for your cooperation, Thunder. My board is the v1.1... I was checking the board to "create" the schematic and I realized there is 7133-1 (3.3v @30mA) regulator in the path. The highest input voltage that it can deal is 24v. So, I will add a 4.7v zener and it will probably...

Thank you so much for your attention, Thunder. My BMS has a glue over the components and it makes the things hard to identify which components are soldered. In your case, is there this glue? Even though a different version, I think the project is very similar (his area is related to voltage...

Could anyone help me?

HaHa I know... that's why I'm trying to find someone who can help me to figure out which component is that I mentioned.

Unfortunately no, my dear. A month ago I have tried to update the firmware and the connection has been lost during the procedure. Mr BotoXbz has shared the stock firmware with me and I flashed it in the new µC. However, I can't go ahead because I need to replace this diode to avoid more...

Hi, people, how are you doing? I'm trying to repair my bluetooth BMS but I don't know which component is that marked with this blue arrow. I know it's a diode but I don't know if it is a rectifier, schottky or a zener. It fried after the 10R resistor (white arrow) has blown. Further, I have...

Many thanks for your explanation, my dear. Mr. BotoXbz has shared a firmware (SP15S001) and I flashed it today but nothing has changed, unfortunately. I'm looking for a supplier in USA or China who can send me a new one to Brazil. Do you know anyone? A friend of mine will be in USA from...

Hi, people, how are you? Today I started assembling my battery but I bricked my BMS after trying to updated its firmware. My BMS is a chinese one with bluetooth support. The model is JBD-SP15S001 (attached below). I realized it uses an ATMega8 with TI BQ76940 to manage the cells. So, does...