dnmun wrote:i don't see how this is a problem of the BMS and i am of the opinion that the headway BMS is superior to the ping signalab. jmho. experts can now jump in and criticize me.
jonescg wrote:Hi guys,
I have been looking at using EIG cells for my eCRX project, and they terminate in much the same way as the A123 cells. I put this picture in the Wanted thread but a mod can feel free to remove it if they think it belongs here.
Basically I thought about taking a PCB with pads I can solder M4-tapped brass blocks to. There are two slots either side of the block (1 mm wide) which allow the two paralleled cell tabs to slide through, and bend over the block; one one way, the other the other way. The tabs would be pre-trimmed and punched with holes at the right spots. 1.6 mm copper plate with 4 mm countersunk holes would hold the tabs down while making the series connection to the next terminal. I thought about putting traces down for the balance taps, but wires to plugs would work just as well.
jonescg wrote:Yeah, this is just an idea, but If it works well I would get 50 boards made up. Getting the brass blocks cut, drilled and tapped would cost a fortune, but they should last forever (and be re-useable).
I admit I was inspired by Agniusm's A123 boards, but his works perfectly for 1P. For motorbikes or cars, you will need at least 2P, which is what I have in mind for the eCRX project. You can also get 4P boards made up if you are going for a low voltage DC setup (144 V or so). But I imagine EiG cells for e-bikes would need a more compact system, and I reckon Agniusm's is pretty good for that.
999zip999 wrote:I think signalab cutoff is a little higher 3.8v. then headway bms. Plus ypu can solder up the shunt a little for higher amps. Do you get the 10 fet signalab ?
999zip999 wrote:Ohzee I was looking for the 16s 10fet signalab in the garage, can't find it. Your signalab 12 fet is for how many serials and how many amps. With those pretty leds ? I would buy one just for those led's
docnjoj wrote:It is a shame 20AH A123 cells wont fit. Darn!