Planing CanView and BMS+ conversion with lithium

[Flying White Dutchman]

GREAT!! hope you succeed
and please tell us ( me ;-) ) (asap :-) )

the dealer in germany told me they do not change the setting of the chargers they provide
its a 240 vdc nom charger with a max of 292 volts dc
dont now what that means... can i charge up to 292 volts? but then wy is that nom of 240 votls there if i can charger cells up to 292 volts....

http://faktor.de/images/pdf//LAD/POWPFC1bis8kWSpec.pdf\

also they aparenly dont SET the charger just ship with standard setting.... dont get that
the charger needs to be set to my battery pack voltage
or wil it auto detect based on measure voltage from the pack

edit
now i understand pfff this charger is ONLY for 240 volt nom pack voltage
i expected that i get the charger from that german company close to my pack voltage and then they set it to the right voltage before shipping
for some reason they say that a lifepo4 is 3 volts nominal?? so its for a 80 cells battery pack

edit
found a link to adjust the end voltage
http://www.diyelectriccar.com/forums...ust-51100.html
cant get the pdf am not a member!!

edit
all celllogs are on its way lets hope some already get here tomorrow so i start testing

[lopezjm2001]

That would explain why my charger will not go onto CV mode. A 232v battery will never reach 240v to go into CV mode. The HVC event will always occur before it can reach 240V.

[Flying White Dutchman]

wow i already was thinking this but micheal told me that he needed 10-14 days to SET my charger.. so i expected it would be special voltage set to my need.
did you not tell him what voltages you needed?
thats bad.... not good..
so now you need to open it up because sending it back would cost you and you lose the charger for some time.
the 240 volt nom and 80 cells at 3 volts remark was from the german company not from micheal but you get it from him and your not getting to your CV state... so..

edit
is it bad that the charger is not going in to CV? if the celllogs detect a high cell it wil shutoff the charger and i can do a low current charge where energy is bleeded off with my bleeding boards ar 200mAmps
so i can still use that 240 volts nom and 292 max voltage charger that one is in stock and i can get it in a few days.,

edit
but if evassemble also does not set the charger like the germany company is doing then i can just as well just buy that geman chargers and use the current control and bleeding boards and cellogs to prevent high voltage.

[Flaninacupboard]

It's ok, except that if your celllog fails to terminate charging your cells will be charged to 4.17V, that would probably be terminal.

[Flying White Dutchman]

yes i dont like it at all...
and my first questio i asked is that i have 72 cells at 3,3 nom and if i could use that charger...they say yes... but that was just sales talk..

[lopezjm2001]

Originally Posted by Flaninacupboard

It's ok, except that if your celllog fails to terminate charging your cells will be charged to 4.17V, that would probably be terminal.

That's a good point. I remember Mr Plug-in saying he could never get CV mode either using his Elcon charger, even after balancing the whole pack by connecting all cells in parallel for 24 hours.

Maybe we could try 76 cells like PIS and then we might get CV mode. But I think that this high voltage may cause Hybrid ECU to engage aggressive ICE or throw a DTC. What does Planetaire think about using 76 cells? I do not want to go down the path of modifying my Elcon charger.

[Flying White Dutchman]

so your ot the only one with that problem
mmmmm not nice from the Elcon guys.
i have 72 cells .. well i got 2 extra so get to 74 ;-) but still to low and dont want to do that i have no reserve and the voltage wil get really high.
and doing that just because a charger is delivered in a wrong way i would say the problem needs to be solved where you buy them from.

[Mr-plugin]

Originally Posted by lopezjm2001

That's a good point. I remember Mr Plug-in saying he could never get CV mode either using his Elcon charger, even after balancing the whole pack by connecting all cells in parallel for 24 hours.

Maybe we could try 76 cells like PIS and then we might get CV mode. But I think that this high voltage may cause Hybrid ECU to engage aggressive ICE or throw a DTC. What does Planetaire think about using 76 cells? I do not want to go down the path of modifying my Elcon charger.

Yes I have never seen it go into CV stage with my pack. But it is set up properly. I was fixing A 2003 prius that the guys fuel pump went out and not knowing what was going on he drove it with the red triangle until the battery was dead enough that it would not start the car. I used my Elcon charger to get his Oem pack charged enough do diagnose it and repair the car. Since the 2003 Prius pack is larger it did go into CV and shut off at the proper voltage set up for 3.6v and 72 cells that I asked for. But even with well balanced lithium, that I think mine are it is hard to get 1 cell from going high and shutting off the charger before it goes into cv stage without a top balancer set up. My Enginer kit would never go into Cv charging untill I put in the MINI BMS board. I will now see Enginer charger drop to 4-5 amps before I see the Enginer BMS shut the charger off due to a high voltage cell.

I guess what I am trying to say is that if you want your charger to go into CV stage I recommend if you have 72 cells, have the charger set up for say 70-71 cells. You will not quite get 100% full charge but if you reach the CV stage it would be close and the last 10% I hear is not that much capacity. Some one would have to try it and let us know. Just my 2 cents

[lopezjm2001]

Deleted

[lopezjm2001]

Thanks Mr Plug-in,

I will install 2 more cells. See if it will go into CV mode.

I have done my current control modification and it works. There is a bit of a response time delay when adjusting pot but it works. So I am now top balancing with 0.5 amps with my miniBMS for an hour or so. Just fine tuning.