rcnewb2004

Thank you Quante,

That is some good information there, and has confirmed my observations a while back about step charging.

For example if you charge
1st step: 0-->2500mah with 6.0A
2nd step:2500-->2600mah with 0.1A
3rd step:2600-->Finish with 5.0A

The charger not only takes time to increase to the desired number of amps, from 1st step to 2nd step, it also takes time to decrease to the desired number of amps, therefore, while the charger is slowly lowering the current, (from 6.0A --> 0.1A), the mah going into the pack has already exceeded 100mAh! (exited the second step before going into it) on another charger this could take 5 minutes... on this charger.. 30 seconds...

no one seemed to give a sh*t or an explanation when i posted it, hopefully, if you bring this up with Erik, you will get a good answer.

If you have time, please ask him when the next update will happen. This charger still needs a lot of updating.

I am wondering what do you mean by the "Delta peak cutoff also works like a charm" on the external output? (Sorry i was wondering if there was sarcasm there...)

My charger (when the soldering posts were slightly de-soldered) were reading 1 cell had 4.36V. So i had to take apart the charger to fix it.

Quante

iTrader: (6)

* No sarcasm intended the deltapeak works well (measured temp with my robitronics overloader, cutoff at a nice 43°C

* When I have some time this week I'm gonna see if this also happens within the tray, I'd like to know if I charge with 4.5A or 6.5A!

* With me its definately not a soldering post because during charging it measures ok. If you have a bad soldering post, then idd the charger will read higher because of the added resistance over the soldering joint.
-> what strikes me as odd is that I expected the charger to measure the voltage seperately over the sensor wires I see soldered to the posts. If it measured wrong when a post is soldered bad then this is definately not true and voltage is not measured seperately! (which could explain my bad voltage measurement with a bad FET)

rcnewb2004

This is just me getting a bit confused here... but you checked the delta peak cut-off with temperature? Is that a "good" way to go about it? (I am sorry, i am new at this...) it just doesn't feel right to check delta peak cutoff with temperature... aren't there other variables to consider?

Good luck w/ your FET problem...

Quante

iTrader: (6)

It gives a pretty good indication if the delta peak works correctly. Since I dont have an oscilloscoop at home I dont have another way to check this (I could be staring at my multimeter but that would take way too long.
If the pack stops charging with DP set to 20mV at 43°C, I'm pretty happy.

gaza121

I have been using this charger for a few weeks now charging IB4200 at five amps using 0.5 and 1 MV delta peak and cannot get my packs to Delta Peak
they all seem to Temp cut????
Am I right in saying the Higher the delta peak MV the hotter your packs will get?? or have I got it the wrong way around?
Should I put cooling fans above the charger tray?
Help!!!

Quante

iTrader: (6)

Yes, the higher the delta peak, the higher the temperature will be before they peak. Atm my settings for EP4200's are: 3mV delta peak, 47 degrees Celsius.

If you set 43 they will temp cutoff every time. Not that its that bad, it'll prolly be a 30mAh difference or so between 43 and delta peak.

rcnewb2004

Yes, but the temp cutoff should basically be used only as a safety feature (from what I have read here)... As long as the delta-peak cutoff is set at a reasonable level, everything should be alright.

radio_car_racer

iTrader: (1)

been using 1mv/2mv & 60c @ 5a / all cells are peaking not tempimg

300s & 30c lockouts

you need good cells to use a low mv setting

tray your cells 1st

In the UK we are using a fan on the left side of the heat sink. Don't let it blow into the cell tray as it'll affect the temp cut-off

akonto2000

Does anyone have settings to charge the following cells:

EP 4500
Ener G 4600

Any help would be appreciated I just got a Spintec charger so I want to make sure the settings are right.

Thanks

chensleyrc1

iTrader: (38)

Why is it that when I charge 6 cells I can charge up to 8 amps, but when I charge 4 cells it only charges at 6??

akonto2000

I set the charger as follows:

Delta Peak = 3.0mV
Temp= 47 oC
Min Capacity = 0
Max Capacity = 6000 (Does anyone change these settings?)
Current = 5.6amps

I ended up turning off the pack because the temp on the middle cells was
116F and the cells took more than 4700 mamps. What have others seen in total mamps taken by the EP 4200 before they delta peak?

CFR

Max Capacity = 6000 (Does anyone change these settings?) Yes

you can turn it down so that it limits what the charger will put into the cells and use it as a safety feature

try these settings if your cells are in good order

0.01mv
60c temp (f = ???)
5000mah

temp or mah settings will stop charge if mv doesn't

my cells all stop on mv setting using the above, some do get upto 50c + though

B&B Racing

iTrader: (2)

I have seen really good IB 4200 cells take in 5200 before peaking. I'm afraid that the EP 4600 cells that we are getting might push the 6000 limit.

djb

bjspinner

iTrader: (22)

I have had many IB 4200 take in 5500mah+ had one cell take 6000mah

SH

iTrader: (20)

Well what's happening? how are people liking their ICC's?