Jay, understood. What do you think happens to the paint under a bolt *with no washer* that is torqued down so that you need a 3ft extension to get it loose - and then torque it down again afterwards, while it is lifting the battery during the torqueing... How much paint would you think is still on that spot under the bolt head? Anyway - there is no current path for the grounding anyway, it is just to make sure in case of an isolation failure (like water in the pack) that it has a solid path to ground and there is no way that the enclosure can carry any voltage. Those two potmetal scraps of metal will no doubt help, that is why they use bolts that clean the threads when inserting - the case itself is painted just like everywhere else, but the bolts (when not too corroded) will make ground contact, just like the return contact bolts in all other places on a car. I know that the return path is *not* through the 6 ground wires in the control plug, because the BMS is insulated from its alu enclosure. I have never tested if the shielding in the HV cables is carrying a return path, I don't think so because I have not seen a ground connection in the HV plug. Cor.
On Wed, Mar 9, 2022 at 4:42 PM Jay Summet via EV <ev@lists.evdl.org> wrote: > > I generally agree with you, but I believe these particular straps are > "grounded" intentionally ( no paint, etc.....while all the other bolts > are just coincidentally grounded.....but may have paint that could > potentially block the conduction.....) > > Since the repair is free to have done under the recall, it's better to > do it than not, if only so that if/when you want to sell the car there > is no outstanding recalls listed for it. > > Jay > > On 3/9/22 17:10, Cor van de Water via EV wrote: > > Waste of time. > > I know, the 2 shitty sheet metal "arms" (12 cm pot steel with a hole > > for a 10mm bolt on each end) are being replaced with concerns about > > them rusting, but really - the entire *metal* battery enclosure is > > bolted to the *frame* of the Leaf with 10 or 12 *huge* bolts under > > high tension, which will connect the battery enclosure to the frame > > with *way* more reliability than the two pityful straps at the front > > edges of the battery. Often enough I have not even re-installed those > > two scraps when I remounted a battery in a car. > > But of course the lawyers will tell you otherwise and the > > sales/service guys will happily parrot that. > > Just my 2 Rubles oh oops, I mean Eurocents or pennies, you choose. I > > hope the Ruble will be less worth than a penny soon. Not for the > > residents but to disable the power of the leader. > > Cor. > > > > On Wed, Mar 9, 2022 at 1:07 PM redscooter via EV <ev@lists.evdl.org> wrote: > >> > >> My 2012 let be getting a HV free battery strap repair, this may applie > >> to other years. it called a "battery bonding plate" . > >> _______________________________________________ > >> 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 _______________________________________________ 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
