Search found 33 matches

by David LaFerney
Sep 13 2016 7:53am
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

That is exactly how I had it (them) but it was a brick. I have them going now. It occurs to me that there should be a bms that you can plug in externally to balance / power leads - no doubt there is such a thing, and I just don't know about it. Thanks.
by David LaFerney
Sep 10 2016 11:54am
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

That is exactly what I have done, but it doesn't work. In the ebay listing the vendor says "The default is 14 cells. User can modify it to use 13 cells very simply without any additional components." but I can't get a response from them to find out how. I suspect that bit of knowledge would get me g...
by David LaFerney
Sep 09 2016 8:05am
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

So, I've hooked this thing up (two of them actually to 2 batteries) and it doesn't work - No charge or discharge current. A couple of volts are detectable from both of those, but that's all. Why Oh why don't they either post clear instructions online for this kind of thing or include them with it? I...
by David LaFerney
Aug 31 2016 3:28pm
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

flangefrog wrote:When searching on eBay or Aliexpress search for XH connectors not JST-XH (try "xh 10s", "xh 11p" and "xh 11 pin" for a 10S battery). They're not made by JST but work fine.
Thanks. That actually does help.
by David LaFerney
Aug 31 2016 3:25pm
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

No problem - thanks for taking another look though. Another hint is that there are only 14 connections total, so if you used one of them for the B- you wouldn't be able to use the board for an S14 pack - which it is rated for. S14 Or S13. I have all the spaghetti for the BMS wired up, so I'll know f...
by David LaFerney
Aug 30 2016 7:58pm
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

You need to use all 14 pins for a 13S pack. The most negative terminal will be B1. the negative end of each successive group will be B2, B3, B4 ....up to B13 which is the negative pole of the top group. The positive pole of the 13th group will go to B14. Are you sure of that? I'm not arguing, becau...
by David LaFerney
Aug 30 2016 4:11pm
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

Re: I THINK I know how to hook up this BMS??!

So can you pretty much use any BMS card with fewer than the maximum number of cells just by connecting however many you have starting with B+1?
by David LaFerney
Aug 29 2016 3:14pm
Forum: Battery Technology
Topic: I THINK I know how to hook up this BMS??!
Replies: 15
Views: 1109

I THINK I know how to hook up this BMS??!

First time doing this - Building a 13s 48v battery pack out of 52 18650s. Of course the BMS comes with no guidance whatsoever other than that it can be used as either a 14s or 13s manager without adding any components. http://zenfixit.com/images/electric_bike/bms2.JPG http://zenfixit.com/images/elec...