Anti Spark Connector for High Current AND High Voltage

u can use a XT60 connector for precharge and a XT90 for final conncection. BTW i found a breaker that can stand 100A and 125VDC: The "OBB-100-125VDC" http://www.easysunshine24.de/index.php/accessories-35412/electronicsaccessories-35451/outbackpowersystemsaccessories-35686/outbackpowersystemaps2char-36342/dc-sicherungsautomat-obb-100-125vdc-pnl.html Not sure if a 50A 80VDC would do the job http://www.solarbag-shop.de/dc-sicherungsautomat-50a.html

Dont use XT60 for your girlfriends bike. XT90 is so much more durable. For her bike just go for XT90S. With 10s it will last forever


note: in the picture all wires are the same size. for precharge small wires like 18AWG or 0.75mm² are just fine though
note2: The 10 Ohm resistor was calced for the integrated plug. For the 2 plugs solution you have plenty of charging time, so 100 Ohm would be adequate. However, the 10 Ohm will work too for sure.
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When not mated, J1772 connectors have no voltage at the pins
this could be done with MT90 connectors as well though. The BMS has to talk to the charger or vehicle and then apply voltage in a second step
 
no anti-spark, but at least foolproof and capable of many amps, the EC8 that is just available
https://www.aliexpress.com/item/Factory-Sale-1-Pairs-EC8-Device-Connector-Plug-Male-and-Female-Brass-for-Heavy-Truck-Car/32761859665.html?spm=2114.search0104.3.1.NhbWs6&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10065_10151_10068_10193_10194_5400011_5430020_5410020_10304_10307_10137_10060_10302_10155_10154_10056_10055_10054_10059_100031_10099_10103_10102_10101_10052_10053_10142_10107_10050_10051_10320_5380020_5390020_10084_10083_5370020_10080_10082_10081_10177_10110_10111_5420020_10112_10113_10114_10180_10312_10313_10314_10184_10315_10316_10319_10078_10079_10073_10186,searchweb201603_2,ppcSwitch_5&btsid=139eb1d6-d912-423a-8980-2fb6b67a6738&algo_expid=bba7bf71-b4fc-4073-9965-f43d90d3c970-0&algo_pvid=bba7bf71-b4fc-4073-9965-f43d90d3c970
 

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Just fell over this: OSE 8.0mm Anti Spark connector https://www.offshoreelectrics.com/proddetail.php?prod=ose-qs8-anti
anyone tried yet?

I also found those QS-8-S connectors that look the same but in blue, no clue if they are compatible??? https://alienpowersystem.com/shop/rc-ev-accessories/qs8-heavy-duty-anti-spark-gold-connectors/

Edit: I just saw that they both use a 5.1 Ohm resistor. Lets see if it survives voltages of 60V+
I'll defnitely buy some

Edit2: I just saw that spinningmagnets found that in 2017 :oops:
https://endless-sphere.com/forums/viewtopic.php?t=2767#p1317655
 

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I just saw that those MT90 connectors (w/o anti-spark) are now available from some bigger local distrubutors (TME in this case). They sould be nice to connect a battery with digital interface (CAN or UART or I2C) to the BMS in one connector.

https://www.tme.eu/en/details/mt90-mf/dc-power-connectors/
 

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If you have a smart BMS with the ability to turn the FET's on and off, you can use any connector you'd like without the problem of sparking.
 
Got 15ohm resistance antispark custom made by the manufacturer with almost 3x the resistance of what they normally use. write me and sell 4 to u for 40$ including usa shipping. Had to get 20 for them to do it.



I think maybe a lot of escs break because the capacitors are beat up by the high inrush current during connecting with the wimpy 5ohm resistance in all the antispark plugs out there. the capacitors break, you don’t know and continue on and then the rest of the esc breaks soon after
 

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Ummmmmmm
 

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