VapingBad Posted June 27, 2015 Author Report Share Posted June 27, 2015 To create a little more space in my enclosure and save strain on the board connections I plan to mount the JST-XH female connector on 30 mm long leads, but there are no suggested wire gauges or current limits in the data sheet for these can anybody advise? Link to comment Share on other sites More sharing options...
SSV Posted June 27, 2015 Report Share Posted June 27, 2015 They should just be vSENSE leads. No significant current is passing through them..... Link to comment Share on other sites More sharing options...
VapingBad Posted June 27, 2015 Author Report Share Posted June 27, 2015 Thanks @SSV Balance charging is new to me and I think I read that balance board will divert current from a battery at a higher voltage during charging or some periodically drain a little charge from a high battery to keep the balance. If that is correct then the first case would be no more than 400 mA 4.2 V or <= 1.7 W would that be a fair max power for these lines then? Link to comment Share on other sites More sharing options...
Bapgood Posted June 27, 2015 Report Share Posted June 27, 2015 The data sheet list recommended wire gauges. What am I missing in the question? Link to comment Share on other sites More sharing options...
John Posted June 27, 2015 Report Share Posted June 27, 2015 He wants to put the JST connector on remote leads. The max current the JST sees is the 40mA balance current, so pretty much anything will work. I would use about 28 gauge myself. Link to comment Share on other sites More sharing options...
Bapgood Posted June 27, 2015 Report Share Posted June 27, 2015 My bad late night Link to comment Share on other sites More sharing options...
SSV Posted June 27, 2015 Report Share Posted June 27, 2015 generally on vSENSE leads we just need to mitigate enough thermo-electric effect to get a reading that doesn't drift with saturation....when we do this in other devices, we generally use a highly stable wire, with proper terminations or joints. A lot of error can be induced into vSENSE leads, from poor terminations, and wire that drifts under load. It's really dependent on what kind of granularity the FW will contain. I am assuming the resolution is below 10 bit? on the a/d? Link to comment Share on other sites More sharing options...
VapingBad Posted June 29, 2015 Author Report Share Posted June 29, 2015 Thanks very much for the answers. Link to comment Share on other sites More sharing options...
Cotay Posted June 29, 2015 Report Share Posted June 29, 2015 How about using a JST-XH extension cable by removing the male connector and soldering the bare wire from the female connector? Link to comment Share on other sites More sharing options...
VapingBad Posted June 29, 2015 Author Report Share Posted June 29, 2015 Cotay said:How about using a JST-XH extension cable by removing the male connector and soldering the bare wire from the female connector?That was my 1st idea, but Hobby king were out of stock so have just got the plugs ans sockets on the way. Link to comment Share on other sites More sharing options...
mandro Posted June 29, 2015 Report Share Posted June 29, 2015 VapingBad said:[QUOTE=Cotay]How about using a JST-XH extension cable by removing the male connector and soldering the bare wire from the female connector?That was my 1st idea, but Hobby king were out of stock so have just got the plugs ans sockets on the way.[/QUOTE] Am I correct in thinking that the board comes with a unattached connector ? Link to comment Share on other sites More sharing options...
VapingBad Posted June 29, 2015 Author Report Share Posted June 29, 2015 mandro said:[QUOTE=VapingBad][QUOTE=Cotay]How about using a JST-XH extension cable by removing the male connector and soldering the bare wire from the female connector?That was my 1st idea, but Hobby king were out of stock so have just got the plugs ans sockets on the way.[/QUOTE] Am I correct in thinking that the board comes with a unattached connector ?[/QUOTE]Yes they come unconnected so you can chose the orientation. Link to comment Share on other sites More sharing options...
mandro Posted June 29, 2015 Report Share Posted June 29, 2015 Thanks, that's a relief. I've already put my order in at hobbyking for batteries/wires/connectors but didn't add one of these. Link to comment Share on other sites More sharing options...
Podunk Steam Posted June 30, 2015 Report Share Posted June 30, 2015 I've just been planning on soldering one of these guys to the board. Link to comment Share on other sites More sharing options...
kkamssi216 Posted June 30, 2015 Report Share Posted June 30, 2015 There's terminal numbers on the connector? Link to comment Share on other sites More sharing options...
VapingBad Posted June 30, 2015 Author Report Share Posted June 30, 2015 kkamssi216 said:There's terminal numbers on the connector?There are pin numbers on the board (manual pg 15) and the connector spec can be found http://www.jst-mfg.com/product/pdf/eng/eXH.pdf . Link to comment Share on other sites More sharing options...
Littlefeather Posted June 30, 2015 Report Share Posted June 30, 2015 VapingBad said:[QUOTE=kkamssi216]There's terminal numbers on the connector?There are pin numbers on the board (manual pg 15) and the connector spec can be found http://www.jst-mfg.com/product/pdf/eng/eXH.pdf.[/QUOTE]I'm getting 404. Looks to be bad link. Link to comment Share on other sites More sharing options...
macz Posted June 30, 2015 Report Share Posted June 30, 2015 Littlefeather said:[QUOTE=VapingBad][QUOTE=kkamssi216]There's terminal numbers on the connector?There are pin numbers on the board (manual pg 15) and the connector spec can be found http://www.jst-mfg.com/product/pdf/eng/eXH.pdf.[/QUOTE]I'm getting 404. Looks to be bad link.[/QUOTE]This should be http://www.jst-mfg.com/product/pdf/eng/eXH.pdf VapindBad forgot to remove . at the end of pdf Link to comment Share on other sites More sharing options...
Littlefeather Posted June 30, 2015 Report Share Posted June 30, 2015 Thanks macz. Weird, either way, when I click the link I get the 404 but when I copy & paste it come up fine! Link to comment Share on other sites More sharing options...
VapingBad Posted June 30, 2015 Author Report Share Posted June 30, 2015 Opp, I typed a full stop, but the site converted it to a link I just pasted the text and had to rush off and do something else so didn't notice.fixed now Link to comment Share on other sites More sharing options...
David247 Posted July 3, 2015 Report Share Posted July 3, 2015 Is there any reason not to solder the wires directly onto the board just for space saving in a small enclouser you have to desolder 2 wires 4 more not a problem while irons hot to change a battery ? Thanks David Link to comment Share on other sites More sharing options...
VapingBad Posted July 3, 2015 Author Report Share Posted July 3, 2015 I would think it is just the danger of shorting a cell if the wires touch, if the soldering iron tip bridges 2 or the solder bridges 2 of them. Link to comment Share on other sites More sharing options...
retird Posted July 3, 2015 Report Share Posted July 3, 2015 Connectors on my builds....Plug and play battery replacement... Link to comment Share on other sites More sharing options...
Vape_Like_A_Boss Posted August 3, 2015 Report Share Posted August 3, 2015 Does anyone know where one could buy a short JST-XH 3S extension cable? I'm finding them in 8 inches and longer, but I really need one two or three inches long. I swap lipos and I'm wanting to place plug/unplug strain on an extension instead of the board itself. I want to leave the balance connector where it is in the board and mod but have a replaceable extension that takes the strains of connecting/disconnecting my batteries.It's ironic that I'm looking for shorter extension cables lol. Link to comment Share on other sites More sharing options...
retird Posted August 3, 2015 Report Share Posted August 3, 2015 Why not just buy the connectors and make your own extension cable to your desired length. Link to comment Share on other sites More sharing options...
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