Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
On 3/28/22 10:23, Peri Hartman via EV wrote: I've got another data point to add to these observations. I still have the original battery in my 2011 leaf. I'm thinking I'd better swap it out before I get stalled somewhere... Anyway, one thing that might be different from others' experiences is I always park outside, so the tiny solar panel is exposed to some sunlight every day. I wonder if the solar charger is keeping the battery from getting a deeper discharge ? Trickle charging the 12v battery was the (only) purpose of the small solar panel on the rear spoiler in the delux models Jay ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
[EVDL] Followup response: Nissan Leaf 2013 Cold Brake (dropout)
Thanks Bill, Phil, Paul etc, I replaced the battery a couple weeks ago with an Optima Yellow-Top $330 - so have to wait till next winter to see if there's brake drop out issues when cold occurs <25F). The original recall for 46K vehicles for cold braking dropout was for *Regen* not happening due to a *software* issue and to download the latest software to correct the problem - but if the brake booster vacuum pump is dropping out due to a less than stiff impedance battery, that's a different problem. That's the thing with intermittent issues, sometimes hard to diagnose accurately (when everything's fine). I'll let you know next winter. Best regards, Mark Message: 1 Date: Mon, 28 Mar 2022 11:28:58 +1300 From: Bill Dube To: ev@lists.evdl.org Subject: Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall Message-ID: Content-Type: text/plain; charset=UTF-8; format=flowed The voltage on a lead-acid battery goes _up_ in cold weather, by the way. Under load in cold weather, however, the higher impedance will tend to make the 12 volt battery voltage sag under load. But the the vehicle DC-DC is working when the brake issue arises, so the battery will play a smaller role. Worth looking at the 12 volt system voltage when the brakes are applied. Perhaps there are additional loads such as power steering load that will cause the 12 volt sag when the brake boost becomes an issue. Bill D. Have a renewable energy day, Mark Mark E. Hanson 184 Vista Lane Fincastle, VA 24090 540-473-1248 phone & FAX, 540-816-0812 cell REEVA: community service RE & EV project club Website: www.REEVAdiy.org (See Project Gallery) UL Certified PV Installer My RE Circuits: www.EVDL.org/lib/mh REEVA Demo: <http://youtu.be/4kqWn2H-rA0> http://youtu.be/4kqWn2H-rA0 <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd89 75b8d/signature> Fincastle Solar Weather Station -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220328/76044f1b/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
[EVDL] Rewiring America
Good video on transitioning to an electric future ... https://www.youtube.com/watch?v=iEOPx2X-EtE -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220328/b10153b4/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
Another factor is, as I recall, the timid Leaf regen. "One pedal driving" is much more difficult than with an EV with aggressive regen. I found I was asking myself "Why are there brake complaints?" . Then, I realized that friction braking may create a 12v load while regen likely does not. ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
ersion was installed last. We think that the battery is what's causing the light on the dash and resistance with your brakes - is actually related to where your system doesn't have the appropriate amount of electrical current running through it so they're recommending that you actually replace your battery." The printout after service reads in caps: "A CUSTOMER IS REQUESTING NEW BRAKING SOFTWARE TO BE UPLOADED. CUSTOMER BELIEVES THIS WILL CORRECT THE CONCERN OF THE TRIANGLE LIGHT POPULATING AT TIMES WHEN BRAKING, FEELS LIKE BRAKE BOOSTER ISN'T WORKING, ESPECIALLY WHEN BELOW FREEZING. TAKES A LOT OF EFFORT TO BRAKE --- UPLOAD SOFTWARE ONLY - 1.0 NBE INSPECTED VEHICLE AND FOUND LATEST SOFTWARE FOR BRAKE SYSTEM ALREADY INSTALLED - LOW VOLT CODES STORED - REC REPLC 12V, 381 CPN $250 41859 1.00 CUSTOMER REQUEST WE PERFORM A SOFTWARE UPDATE TO THE BRAKING SYSTEM FOUND ONLINE WHERE IT WOULD FIX THEIR CONCERN. CHECK BRAKE PART NUMBER AND ADVISE CUSTOMER THERE IS NO UPDATE AVAILABLE FOR THE BRAKING SYSTEM - IT HAS ALREADY BEEN REPROGRAMMED ELSEWHERE. DID FIND MULTIPLE LOW VOLTAGE CODES STORED DUE TO WEAK 12V BATTERY. THIS CAN CAUSE THE SAME CONCERNS YOU HAVE - RECOMMEND BATTERY REPLACEMENT." Question: has anyone heard of with this recall with the 12V battery causing the braking regen to drop out on cold weather - or is this *junk science* ? Have a renewable energy day, Mark Mark E. Hanson 184 Vista Lane Fincastle, VA 24090 540-473-1248 phone & FAX, 540-816-0812 cell REEVA: community service RE & EV project club Website: www.REEVAdiy.org (See Project Gallery) UL Certified PV Installer My RE Circuits: www.EVDL.org/lib/mh REEVA Demo: http://youtu.be/4kqWn2H-rA0 Fincastle Solar Weather Station <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd89 75b8d/signature> -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220327/590362ae/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220328/6bf25f70/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
EM ALREADY INSTALLED - LOW VOLT CODES STORED - REC REPLC 12V, 381 CPN $250 41859 1.00 CUSTOMER REQUEST WE PERFORM A SOFTWARE UPDATE TO THE BRAKING SYSTEM FOUND ONLINE WHERE IT WOULD FIX THEIR CONCERN. CHECK BRAKE PART NUMBER AND ADVISE CUSTOMER THERE IS NO UPDATE AVAILABLE FOR THE BRAKING SYSTEM - IT HAS ALREADY BEEN REPROGRAMMED ELSEWHERE. DID FIND MULTIPLE LOW VOLTAGE CODES STORED DUE TO WEAK 12V BATTERY. THIS CAN CAUSE THE SAME CONCERNS YOU HAVE - RECOMMEND BATTERY REPLACEMENT." Question: has anyone heard of with this recall with the 12V battery causing the braking regen to drop out on cold weather - or is this *junk science* ? Have a renewable energy day, Mark Mark E. Hanson 184 Vista Lane Fincastle, VA 24090 540-473-1248 phone & FAX, 540-816-0812 cell REEVA: community service RE & EV project club Website: www.REEVAdiy.org (See Project Gallery) UL Certified PV Installer My RE Circuits: www.EVDL.org/lib/mh REEVA Demo: http://youtu.be/4kqWn2H-rA0 Fincastle Solar Weather Station <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd89 75b8d/signature> -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220327/590362ae/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220328/6bf25f70/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
ith this recall with the 12V battery causing the braking regen to drop out on cold weather - or is this *junk science* ? Have a renewable energy day, Mark Mark E. Hanson 184 Vista Lane Fincastle, VA 24090 540-473-1248 phone & FAX, 540-816-0812 cell REEVA: community service RE & EV project club Website: www.REEVAdiy.org (See Project Gallery) UL Certified PV Installer My RE Circuits: www.EVDL.org/lib/mh REEVA Demo: http://youtu.be/4kqWn2H-rA0 Fincastle Solar Weather Station <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd89 75b8d/signature> -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220327/590362ae/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220328/6bf25f70/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
The float voltage is 13.5 to 13.8 volts. That is what you would expect to see on the battery terminals when the car has been running for awhile. Charging begins at about 13 volts, BTW. All these voltages are at 25 Celsius. Colder means higher charging voltage (and float voltage.) Hotter means lower charging voltage, and of course float voltage. However, there is some distance and more than a few connections between the battery and the cigar lighter. There is certainly voltage drop along the way. Even so, I would be slightly concerned if I read 13.0 volts on the cigar outlet. A bit toward the low side when the car has been running... Mark would be wiser to use the app "Leaf Spy" through the OBD connector to find out what the accessory system voltage is. At least what the car ECU is getting. Bill D. On 3/29/2022 12:59 AM, paul dove via EV wrote: The minimum charging voltage is 13.8 volts dc across the battery terminals, or at the output of the alternator. A single lead-acid cell starts to charge at anything over 2.25 volts. Since a 12 volt battery has six cells, any 12 volt lead-acid battery needs at least 13.8 volts to start to charge. Sent from AT Yahoo Mail for iPhone On Sunday, March 27, 2022, 9:15 AM, mark hanson via EV wrote: Hi Folks, I checked the 12V aux voltage through the cigarette lighter socket with a DVM and shows 13.0V during operation. The low voltage storage codes over time were caused by the vehicle sitting a long time and the ghost loads dropping the battery voltage to 10V and had to recharge externally (also sets low voltage codes when replacing the battery). I don't see *how* the aux voltage operating at 13V has *any* effect on the brakes in *cold* weather. I'd love to see a technical explanation on this rather than "just replace the good battery with a more expensive one". Best regards, Mark ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Re: [EVDL] Followup: Nissan Leaf 2013 Cold Brake (dropout) Recall
184 Vista Lane Fincastle, VA 24090 540-473-1248 phone & FAX, 540-816-0812 cell REEVA: community service RE & EV project club Website: www.REEVAdiy.org (See Project Gallery) UL Certified PV Installer My RE Circuits: www.EVDL.org/lib/mh REEVA Demo: http://youtu.be/4kqWn2H-rA0 Fincastle Solar Weather Station <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd89 75b8d/signature> -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220327/590362ae/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220328/d6f3bfbf/attachment.html> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
