Search found 9 matches

by evcar
Wed Oct 28, 2020 10:08 pm
Forum: Nissan
Topic: Gen 2 Leaf BMS Connectors and more
Replies: 4
Views: 1106

Re: Gen 2 Leaf BMS Connectors and more

Here's the battery thermistor resistance curve from a 2013 model Leaf.
by evcar
Sun Aug 09, 2020 11:55 pm
Forum: Tesla
Topic: Tesla DC to Dc Deushte connectors
Replies: 22
Views: 3310

Re: Tesla DC to Dc Deushte connectors

I'm not familiar with the Tesla DC-DC converters, but it might fit with this Molex connector:
https://www.digikey.com/product-detail/ ... ND/1756779
by evcar
Sun Jul 05, 2020 3:38 am
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

Regarding the SOC there are two 'locations' that this value is available. On is 'static' and used on startup and probably a copy of the last known 'live' value which starts to be available after all cell values have been polled. LeafSpy is using these values this way. Very interesting! I've been re...
by evcar
Sun Mar 01, 2020 10:09 pm
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

Now, mostly happy with what the LBC does. Only, when I charge SoC doesn't increase. It will increase later as I drive but thats too much delay. So I'm wondering, when charging do I need to pull Pin 5 AND 6 to 12V or just pin 5? Currently doing the latter. In my car I'm pulling both pins to 12V, but...
by evcar
Wed Jan 29, 2020 6:51 am
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

If you need to replace the connectors, you can use this series of connectors from TE connectivity (some examples): https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/1318386-1/A106550-ND/2273493 https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/1318747-1/...
by evcar
Sat Jan 18, 2020 2:04 am
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

johu wrote: Fri Jan 17, 2020 4:40 pm I realized the old BMS had 4 current sensors, the new one has only 3. I'm lacking one. Could that be the problem? What kind of sensors are they? Maybe I can just put in a constant resistor
Are you referring to the temperature sensors? If so, they should be 4kohm nominal NTC thermistors.
by evcar
Fri Jan 17, 2020 6:11 am
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

One method I used to verify that the BMS was hooked-up correctly was with a bluetooth dongle and the LeafSpy app. There's an option in the app to only perform BMS communications. Using the app, you can see all the output data from the BMS. Here are some details: http://www.electricvehiclewiki.com/wi...
by evcar
Thu Jan 02, 2020 4:23 am
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

prensel wrote: Wed Jan 01, 2020 7:07 pm
evcar wrote: Tue Dec 31, 2019 6:32 am I've been running my 2013 Leaf BMS on a 48S battery pack for a few months now. So far it's been working well and reports all the cell voltages properly.
Did you parallel connect the BMS wires of the two banks of 48S ?
Correct, I did parallel the two banks.
by evcar
Tue Dec 31, 2019 6:32 am
Forum: Battery Managment (BMS)
Topic: Nissan Leaf BMS
Replies: 155
Views: 626012

Re: Nissan Leaf BMS

I've been running my 2013 Leaf BMS on a 48S battery pack for a few months now. So far it's been working well and reports all the cell voltages properly.