His use of Supercaps was a bandaid: due to the excessive internal resistance of the LiIon batteries that he found, he had to make up a solution to give him the ability for a short power burst (to merge on freeway for example). Supercaps happened to be on sale, so it worked out for him, but they do not add range, just a temporary boost. If you add a parallel pack of batteries, you add both range and double the current (or half the voltage sag) of your pack, so that is typically preferred. I have a similar situation: well-used Nissan Leaf 1st gen batteries that tend to sag quite a bit due to increasing internal resistance, but with 2 packs in parallel, each only sees half the current so the sag is reduced and my range more than doubled. Cor.
Sent from Mail for Windows 10 From: brucedp5 via EV Sent: Wednesday, February 27, 2019 8:55 PM To: ev@lists.evdl.org Cc: brucedp5 Subject: [EVDL] (metricmind.com links): Supercaps reduce li-ion pack sagging jay sez >Victor Tikhonov (of MetricMind) used a string of 2.7kF Maxwell supercaps< Advanced electric vehicle conversion project - Battery ... - Metric Mind www.metricmind.com/ac_honda/ultracaps.htm The power boost ultracapacitor stack. Manufacturer: Maxwell technologies. Cost: $4,800 (liquidation sale). Ultracaps The LiIon battery I use proved to be a good ... Advanced electric vehicle conversion project - Metric Mind www.metricmind.com/ac_honda/main2.htm ... 10 LEad acid batteries will be replaced with 28 ones, later - with 96 LiIon ones (later supplemented with ultracapacitor bank) and then - with 24 NiMH ones?? FAQ | Metric Mind Corporation www.metricmind.com/education/ ... AC drives available for amateur conversions since 2003, first use of supercapacitors, first lithium ion batteries (Honda ACRX), first informational LED lighting, ... High End No Compromise Electric Vehicle Conversion ... - Metric Mind www.metricmind.com/audi/1-initial.htm Apr 6, 2008 - I installed AC drive system, tried several battery types (Lead Acid, Lithium Ion and Nickel Metal Hydride), ultracapacitors and few other novel at ... https://www.google.com/search?q=Metric+Mind+ultracapacitors For EVLN EV-newswire posts use: http://evdl.org/archive/ {brucedp.neocities.org} -- Sent from: http://electric-vehicle-discussion-list.413529.n4.nabble.com/ _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190227/352bc590/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
