tag:blogger.com,1999:blog-2065249958925006388.comments2023-03-31T02:29:54.142-07:00kWsakijsantalahttp://www.blogger.com/profile/13711677346363688402noreply@blogger.comBlogger109125tag:blogger.com,1999:blog-2065249958925006388.post-4642147186632468242017-07-20T23:08:35.435-07:002017-07-20T23:08:35.435-07:00Since this I've balanced mine a little lower, ...Since this I've balanced mine a little lower, say between 2.60 and 2.70 volts, but it shouldn't make much of a difference. I think you'll be fine if you have the cells between 2.75 and 2.80 volts. Just make sure they stay at the voltage at least overnight.Anonymoushttps://www.blogger.com/profile/11718404165415340576noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-22282721267375716062017-07-20T11:13:05.365-07:002017-07-20T11:13:05.365-07:00When bottom balancing, how close do the numbers ne...When bottom balancing, how close do the numbers need to be to 2.75? Can they be off by a hundredth or thousandth? We have 32 batteries we're working with, so it's difficult to get them all exactly 2.75. Some of them are at 2.758, 2.752 and so on. Anonymoushttps://www.blogger.com/profile/07784500748924627089noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-6746399036615943282017-07-12T05:02:03.270-07:002017-07-12T05:02:03.270-07:00In a top balanced scenario, the weakest cell will ...In a top balanced scenario, the weakest cell will be empty before the rest of the cells. The others are still able to output amps business as usual. The weakest cell is forced to try and do the same. It can't, since it's empty, and it will eventually go into reversal and therefore destroy itself. It will be empty first, because in a top balanced scenario all cells have a different amount of energy stored in each cell. Where as in a bottom balanced scenario, all cells will have the same amount of energy in each cell, even if some of them could store more than others.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-13774680781669545992017-07-12T02:02:22.742-07:002017-07-12T02:02:22.742-07:00Hi Jarkko
Thanks for a very good article.
But I st...Hi Jarkko<br />Thanks for a very good article.<br />But I still not get why the weakest cell is not trying to keep up with the stronger cells, when in series, and therefore being “killed”, is that because it’s somehow being a little overcharged and therefore have a little headstart when we start discharging.<br />Anonymoushttps://www.blogger.com/profile/05838590049026707060noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-8428134101838896412016-10-25T10:26:58.272-07:002016-10-25T10:26:58.272-07:00Valitettavasti ei ole saatavilla.Valitettavasti ei ole saatavilla.Anonymoushttps://www.blogger.com/profile/11718404165415340576noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-67354007346509333222016-10-25T10:24:44.673-07:002016-10-25T10:24:44.673-07:00Haluaisin yhden mootorin itselleni. Jos on saatavi...Haluaisin yhden mootorin itselleni. Jos on saatavilla ruudi nolla viisi numeroilla at hotmail piste comRuudmanhttps://www.blogger.com/profile/17502424258735378446noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-69599435725245094432016-10-10T05:20:11.177-07:002016-10-10T05:20:11.177-07:00The heater will not turn on at all if you have the...The heater will not turn on at all if you have the heater control set to neutral. It will direct air through the heat exhanger though, if you had it on red previously. It also won't turn on if the "coolant" is hotter than it thinks it needs to be on the chosen setting. So you can keep the heat knob in the first click of the red zone if you like. This will also run the pump in the car if your burner doesn't have one. I haven't had a problem with having two pumps running simultaneously.<br /><br />I didn't bother with the fan control, even though the burner had wiring for it. I just used a separate eletric heater to heat the car and had the burner pre-heat the "coolant" so I'd get hot air as soon as I'd start the car.Anonymoushttps://www.blogger.com/profile/11718404165415340576noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-53264225716544308942016-10-10T04:07:50.098-07:002016-10-10T04:07:50.098-07:00Brilliant info :-) Just got a c-zero ...
Have you...Brilliant info :-) Just got a c-zero ...<br /><br />Have you disabled the PTCheater - or will it not turn on when you enable both pumps ??<br /><br />Also have you installed a timer and a relay so the burner can start the fan in the car ??Fladstrandskolehttps://www.blogger.com/profile/05704463570886279182noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-78136728541192423432016-09-12T12:41:27.134-07:002016-09-12T12:41:27.134-07:00It's only the Citroen C-Zero and Peugeot iOn w...It's only the Citroen C-Zero and Peugeot iOn which have been crippled. All i-MiEVs have all the positions available.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-84728311836666855302016-09-12T12:41:18.955-07:002016-09-12T12:41:18.955-07:00It's only the Citroen C-Zero and Peugeot iOn w...It's only the Citroen C-Zero and Peugeot iOn which have been crippled. All i-MiEVs have all the positions available.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-54330184509688101992016-08-31T10:22:29.718-07:002016-08-31T10:22:29.718-07:00Thanks, Ben! I never got around to insulating the ...Thanks, Ben! I never got around to insulating the pipes pipes on the C-Zero I had, but I'm sure it would have benefitted from it. Having the fuel heater installed was enough to make the car usable in the winter, but I'm sure it would have been even better with insulation. You did check out my post here on the insulation I added to the doors? That made difference as well. The speaker sound quality also improved along with less noise from the outside getting in.<br /><br />https://kwsaki.blogspot.fi/2015/07/added-insulation.htmlAnonymoushttps://www.blogger.com/profile/11718404165415340576noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-60383179943065057162016-08-30T18:35:02.311-07:002016-08-30T18:35:02.311-07:00Nice Mods! I still need to insulate the heat pipes...Nice Mods! I still need to insulate the heat pipes in my Mitsubishi iMiEV down below the car, and add some firewall insulation before winter starts!Benhttps://www.blogger.com/profile/01662206145070667368noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-61955839593373796472016-07-17T12:06:48.626-07:002016-07-17T12:06:48.626-07:00One litre of gasoline contains 9kwh of energy, so ...One litre of gasoline contains 9kwh of energy, so in total 1l consumed equates to 10.2kwh. Therefore 10200 divided by 16.7 gives roughly 611wh/km. Now 70wh/km vs. 611wh/km,thats a remarkable difference!Anonymoushttps://www.blogger.com/profile/14668568818864462426noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-84256031883517938062016-05-11T06:16:19.417-07:002016-05-11T06:16:19.417-07:00Nice simple post. Thanks.
A lot of people over c...Nice simple post. Thanks. <br /><br />A lot of people over complicate this sort of thing.Kermit Greenhttps://www.blogger.com/profile/04017975084516716465noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-63539319290302733482016-01-17T19:47:52.846-08:002016-01-17T19:47:52.846-08:00Neat! Are i-MIEV vehicles sold outside of Europe f...Neat! Are i-MIEV vehicles sold outside of Europe free from this limitation? I wonder why they would lock these modes out. Ned Funnellhttps://www.blogger.com/profile/17575850788682447828noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-66662806348626578662016-01-15T06:31:15.911-08:002016-01-15T06:31:15.911-08:00Thanks Jarkko!Thanks Jarkko!Benhttps://www.blogger.com/profile/01662206145070667368noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-9710812711328543362015-11-26T11:35:50.004-08:002015-11-26T11:35:50.004-08:00Unfortunately I have no experience with Agni motor...Unfortunately I have no experience with Agni motors, so I can't make the comparison, but I have been happy with the ME1003 and have been able to comfortably reach 128km/h using it and 29 LiFePO4 cells.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-35646986352487565262015-11-26T11:34:11.648-08:002015-11-26T11:34:11.648-08:00Hey Jarkko,
I see that you have used the Motenergy...Hey Jarkko,<br />I see that you have used the Motenergy 1003 for the Kwsaki EV. Could you comment on the performance and efficiency of the motor?<br />How does it stackup against the Saietta 95R (Agni 95R) ?aaaaahttps://www.blogger.com/profile/12264353453561186026noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-53543155400326968052015-07-23T03:47:08.929-07:002015-07-23T03:47:08.929-07:00Check out this video on how to remove the panels:
...Check out this video on how to remove the panels:<br />https://youtu.be/mwYiHZMpDaA<br /><br />The insulation material I used is the same type as this (in Finnish, but it has a picture):<br />http://www.biltema.fi/fi/Autoilu---MP/Autotarvikkeet/Aanenvaimennin/Aanieristyslevy-2000017199/jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-72325669836558898012015-07-23T03:28:09.868-07:002015-07-23T03:28:09.868-07:00Could you give some more details about this? Like,...Could you give some more details about this? Like, procedures for removing/replacing the covers? The exact insulating material? Thanks.Williamhttps://www.blogger.com/profile/02052684196866992031noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-39804224932028255812015-04-22T22:34:21.245-07:002015-04-22T22:34:21.245-07:00You can discharge the cells to 2.75 volts one by o...You can discharge the cells to 2.75 volts one by one or in parallel when bottom balancing. Both works. Just make sure that you disconnect the parallel cells when you're done and let them rest disconnected. Only then you can be sure they really did get to correct voltage and don't have soft shorts.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-81415302627886657932015-02-01T21:32:02.287-08:002015-02-01T21:32:02.287-08:00Lots of things are important, but I try to keep so...Lots of things are important, but I try to keep some of a limit on things I cover. I don't really like packs with cells in parallel, because it multiplies the number of connections. And if something's going to fail it will probably be the connections.<br /><br />Yes, I suppose if you're going to charge the pack and use it, you might need to connect it to a charger or perhaps even the motor controller or inverter. I don't think it has to be spelled out as such.<br /><br />Actually you can discharge the cells to 2.75 V either one by one or by connecting them all in parallel. It can be a little easier and less watching paint dry if you use the parallel method, but on the other hand you won't get to know your cells and may miss a bad cell.<br /><br />Something I've learned since writing these posts is that once you have the cells bottom balanced at 2.75V, you can leave them sit for a while and monitor their voltage. If a cell doesn't stay at the voltage or creep up a litte, but instead goes down in voltage, it probably has an internal soft short and needs to be discarded.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-34981957514044788452015-02-01T12:34:17.428-08:002015-02-01T12:34:17.428-08:00(Correction: you do say "pack as a whole"...(Correction: you do say "pack as a whole" in item 4, but that seems targeted at *use* of the pack; step one does not say whether to discharge cells one at a time.)Baylinkhttps://www.blogger.com/profile/02272104405451110054noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-58337676039288087322015-02-01T12:32:52.051-08:002015-02-01T12:32:52.051-08:00Two comments (and why is your Wordpress in Finnish...Two comments (and why is your Wordpress in Finnish, BTW? :-) --<br /><br />1 - you never use the words "serial", "parallel" or "disconnected, one at a time" anywhere in either of these posts, and they seem important<br /><br />2 - you say "nothing except other batteries"... but I assume that you do *not* mean "voltmeters", "chargers" or "test loads" -- since you mean to be exhaustive here, you might want to edit the relevant terms in where appropriate -- especially since this is the number one google response for "bottom balancing". :-)Baylinkhttps://www.blogger.com/profile/02272104405451110054noreply@blogger.comtag:blogger.com,1999:blog-2065249958925006388.post-31162012084085965382014-07-25T11:49:44.092-07:002014-07-25T11:49:44.092-07:00In an ideal world both Ah in and Ah out should mat...In an ideal world both Ah in and Ah out should match, but as it's not very simple to accurately measure frequently changing 0-600 amps out and a steady 20 amps in on the same shunt, you never quite get there. I did mamage to make it match a little better already by removing the extension I had made to the Cycle Analyst shunt cable and also moving the shunt right on the controller minus input, which may or may not make a difference. Unfortunately Cycle Analyst only counts Wh out of the pack, but not in, so I mainly end up using just the Ah display. I haven't yet tested how many Ah out it would now read after full discharge or how much the new tires have improved my Wh/km, which I'm quite sure they have.jsantalahttps://www.blogger.com/profile/13711677346363688402noreply@blogger.com