Oh hahah Oops. This really shows how big of a ‘‘noob’’ I am at BMS`s and such. I am not quite sure what you mean with ‘‘bottom of the pack though’’.
EDIT: Oh hahah that explains. So just a quick summary for me. I will wait for others to confirm too just to be sure . If i get a 13 lead bms like a linked. That has a B1- port Thats the one that has to have the negative wire wired up the rest just in order how I wired them up. The port that says CH- is the port that I will attatch my power plug too. This is how I am supposed to do it right?
You just need to make sure you are connecting the balance leads appropriately. for ex if there was 12 leads only (meaning no negative balance wire), the wires should go in series of voltage from B1 to B12. Always be safe and check with a Voltage meter. If there was a BMS layout it would have been easier lol
Edit: I busted a BMS because I had the leads the other way around and the BMS was trying to regulate the voltage backwards. It got so hot and just didn’t allow me to charge anymore. Good thing cheap BMS’s are easy to replace and do not much harm (If monitored that is).
Honestly you do you, some people like 13 leads, others is 12 leads. I don’t see why it matters with cheaper BMS’s. Use the BMS appropriately to the way it’s made always.
Next step is to use a better BMS to have faster balancing between cells. Cheapo ones take weeks if not months on bigger battery packs.
The other thing I see would be -There should be a fuse on the charge port, and - I’d prefer to see the loop key on the positive, rather than the negative (This isn’t as important as the fuse.)
Most problems related to that are caused by very old batteries or not charging to 100% full often enough. The lower that is, the less it can deal with that stuff.
I still have my balance charger I currently use to charge my lipos so if you recommend it I can always charge it with my turnigy reaktor once in a while. I dont know once in how many times is standard to do that?
So I was looking around a bit but sometimes I couldn’t find the balance current for a single cell. Does that mean that that specific BMS balance out the cells? I think its weird to not put that in the specifications since that is like the main purpose of a BMS. This is one example of one i found were i could find that specification.
Also I found that there was a BMS that looked good with the specs but I don’t understand how you wire the balance wires up. Since normally you would only wire up the negative 1 time or not at all and the positive 3 times in my case. But here they drew constant negative and positive wires in the wire scheme. Could someone explain to me how that works. It also has 2 wire plugs but I Don’t really know what that’s for. If you have some sort of video feel free to link that one. I couldn’t find anything I could understand about this.
If it doesn’t have a clearly labeled balance current, I would absolutely NOT buy it.
Think about this – even if it does balance the cells – the seller doesn’t even know enough about BMSs to tell you what that important measurement is. Are you going to trust that person with not setting your home on fire?
. If i get a 13 lead bms like a linked. That has a B1- port Thats the one that has to have the negative wire wired up the rest just in order how I wired them up. The port that says CH- is the port that I will attatch my power plug too. This is how I am supposed to do it right?
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