On my bike I have a built-in locked/unlocked/on switch, the precharge is switched on with the 12V. The ignition switch then closes the contactor (Gigavac GX12, BTW). I'm thinking of adding a delay to the latter to make it early morning/idiot proof.zackclark70 wrote:i would suggest a 2 stage key switch with a pre charge resistor on stage 1 to minimize the inrush current on the controller it will save you contactor and the controller caps stage 2 would have all your relays / main contactor ( maybe run the dc-dc from the bms output)EddySPalm wrote:Clever!zackclark70 wrote:use the bms output to switch a fused connection direct from the battery to the controler ( just fit a key switch in the wire from the bms to the relay/contactor )
By the way, can anyone recommend me a good contactor and key operated switch?
the best bet for a key switch is to go on ebay and pick up a car ignition switch from something like a ford they are cheap and work well ( you will probably want a relay for the 12v system / dc dc converter aswell along with a fuse box for all the 12v stuff )
its also best to make the wiring hard to get at to avoid theft
just visualizing the workings of this setup makes me want to get my next big project started lol
sorry if that does not make 100% sense its nearly 4am here lol
You might want to add a well-hidden GPS tracker - maybe under the battery?