Howdy, You are aware that there are over 250 cells in the truck, so that would mean grinding the nuts on over 500 connections? Not gonna happen. I would be tempted to weld 5 ball bearings equidistant to a short piece of pipe and try to get the distance between the balls close enough to allow this to use as temp tool, hopefully the nuts are not rotted tight onto the threads or I will only be able to destroy the cells to get them out... NOTE that the seller even included a set of spare cells so how the hell would he expect to swap cells? I swear - if these nuts were used to attach the Prius catalytic converter protection plates, we would be free of any theft! Cor.
On Tue, Nov 16, 2021 at 2:54 PM Haudy Kazemi <kaze0...@umn.edu> wrote: > > It may be custom security hardware with limited access to tools. It doesn't > appear to be something that would match something in the readily available > security bit toolkits. Maybe the person you got the pack from knows the > backstory? > > If you can't find the tool needed or a substitute, you could try adding flat > grips to the nuts via a grinder or Dremel-type rotary tool. Shield everything > near the specific nut being worked on with a non-conductive barrier, possibly > plexiglass and/or dry wood. The added flat grips will either let you remove > the nuts by unscrewing, or by weakening the nut so it breaks during the > removal attempt. > > Not sure why they'd care about locking down individual cells. This isn't > doing anything to keep people away from high voltages and currents...that'd > be something to do at the whole pack enclosure level, not cell level. They're > really only preventing pack disassembly. Maybe that's the point? But again > why? Detecting warranty voiding tampering? > > > > On Tue, Nov 16, 2021, 04:29 Cor van de Water via EV <ev@lists.evdl.org> wrote: >> >> Here two pics of the battery box with the weird half-dome nuts on the >> cell interconnects: >> https://flic.kr/p/2mK3nUh >> https://flic.kr/p/2mKc155 >> Anybody know what this nut is called and where to find the tool for it? >> Cor. >> >> On Mon, Nov 15, 2021 at 8:28 PM John Lussmyer via EV <ev@lists.evdl.org> >> wrote: >> > >> > I'd like to see a photo of that! >> > >> > On Mon Nov 15 20:11:26 PST 2021 ev@lists.evdl.org said: >> > >It looks like a halfdome with 5 deep dimples for the tool to grab into >> > >to undo the nut. >> > >> > >> > -- >> > >> > Tigers prowl and Dragons soar in my dreams... >> > _______________________________________________ >> > 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
