Recent content by krlenjuska

I have same electronics and everything works 100%. Just use 70mm2 secondary wire and dont worry. You will get 1.4 -1.8V with 2 full turns and this is enough for good spot welds. One more thing - always use 20ms at start and increase current when you test welds. If your nickel strip is thick you...

I have all parts for 10pcs but simply dont have free time to finish this project.

Thanks i ordered 6S-10S version.

I have 1 question about JBD bluetooth BMS. Is android app enough for settings like charging voltage, balance start voltage and discharge cutoff voltage? I want to charge my pack to 4.10V. I dont wanna buy UART module if i dont need it. Thanks!

You can set cut-off voltage to lower value (4.1V for example) and save battery life. Monitoring is big deal - easy to detect problem with some group of cells - and its easy to find that cell later and replace it. Also quality of BMS is higher.

You have smart bms. Check this thread: https://endless-sphere.com/forums/viewtopic.php?f=14&t=88676 https://www.aliexpress.com/item/33043068582.html?spm=2114.12010612.8148356.23.55a53de2ayFwtM Check this store also...

You asked for reccomendation from your list - i think second is good. https://www.aliexpress.com/item/32837937191.html?spm=a2g0s.9042311.0.0.27424c4dP1O6H3

I used second one for acudrills - without any issues so far.

Probably not because you dont need better one - this bms can handle 10A without isues. BTW why 30P battery? What is this for?

I use this for accudrill battery repair and works just fine. https://www.aliexpress.com/item/32852015245.html?spm=a2g0s.9042311.0.0.7c1b4c4dJcgbsF

Motor voltage?

Riba - can i use 1N4004 diode instead of 1N4001? Only difference is voltage if im not wrong.

Yeah they are in series in my case also. 1.5kΩ+10kΩ - 11.5kΩ total. My controller stopped at 20.25V. I will now try use different value of smaller resistor - will try with 2kΩ and check cutoff voltage. After that it should be easy to calculate right value. Yeah - i managed to set cutoff...

Probably Kweld https://endless-sphere.com/forums/viewtopic.php?f=14&t=89039

Yeah i figured that also - those 2 resistors are responsible for voltage cutoff. Will try to test with my variable PS and after that i will use math to change resistor value. Only strange thing - it seems to me those 2 resistors are in series in my case - not parallel. Will check later with...