barbs00
100 W
Reposting here as I put in wrong location initially.
Hi All,
After a weekend of involving much head scratching and some truly terrible solder joints I have almost completed my first battery.
It is a 14S 5P made with LG MG1 cells - making it 52v and 14Ah. I have a BBSHD arriving next week
I would like to say a big thanks to all the endless sphere members who have helped get me to this point and for answering my Noob questions. Also, Micah Tolls Ebook and website were an amazing help.(His site is http://www.ebikeschool.com/)
I used an Ardunio spot welder from http://www.malectrics.eu which worked great (once I got a big enough car battery)


The welds are very strong and even difficult to pull apart with pliers.
Pics of almost finished battery


I think I have a faulty BMS as I am have 50.6v going into the BMS and only 12.8v out. I have triple checked the wiring and it seems fine so i guess the BMS is faulty? Any ideas?
Cheers,
Barbs
Hi All,
After a weekend of involving much head scratching and some truly terrible solder joints I have almost completed my first battery.
It is a 14S 5P made with LG MG1 cells - making it 52v and 14Ah. I have a BBSHD arriving next week
I would like to say a big thanks to all the endless sphere members who have helped get me to this point and for answering my Noob questions. Also, Micah Tolls Ebook and website were an amazing help.(His site is http://www.ebikeschool.com/)
I used an Ardunio spot welder from http://www.malectrics.eu which worked great (once I got a big enough car battery)


The welds are very strong and even difficult to pull apart with pliers.
Pics of almost finished battery


I think I have a faulty BMS as I am have 50.6v going into the BMS and only 12.8v out. I have triple checked the wiring and it seems fine so i guess the BMS is faulty? Any ideas?
Cheers,
Barbs