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Forum: FMA Direct
10-20-2012, 07:11 PM
Replies: 6
Views: 4,657
Posted By miernik

I have finally set up the system, and I have run...

I have finally set up the system, and I have run into the problem of charge terminating because of CV timeout after 15 minutes. I use A123 cells (AMP20 20Ah pouch cells) and the CCS program doesn't...
Forum: FMA Direct
04-15-2011, 03:12 AM
Replies: 12
Views: 5,868
Posted By miernik

So let me understand this correctly - the cell...

So let me understand this correctly - the cell temperature was lower after 6 minutes of 30Amp (how many C was that?) then before? Well, sitting in the sun, they might have had 40 degC or something....
Forum: FMA Direct
04-15-2011, 02:08 AM
Replies: 9
Views: 8,876
Posted By miernik

FMA Cellpro PowerLab 8 regenerative discharge power source?

What are the limitations on the power source used in case of using the regenerative discharge function?

Does it absolutely have to be a lead-acid battery, or can I have a chain of 8 LiFePo4...
Forum: FMA Direct
04-15-2011, 01:51 AM
Replies: 12
Views: 5,868
Posted By miernik

Yes, and I want the cells to cool down a bit in...

Yes, and I want the cells to cool down a bit in between, so about 1 hour per cycle. And maybe 10000 cycles is not enough to kill them, so I might run it even longer. A year or more.

Will the...
Forum: FMA Direct
04-14-2011, 09:44 PM
Replies: 12
Views: 5,868
Posted By miernik

I understand all this, however this is for...

I understand all this, however this is for testing individual cells (for better statistical value) and not the pack as a whole. I only want to use the balancing to avoid buying 8 chargers which would...
Forum: FMA Direct
04-14-2011, 10:43 AM
Replies: 12
Views: 5,868
Posted By miernik

how exactly does the balancing in the FMA Cellpro PowerLab 8 charger work?

I want to use the FMA Cellpro PowerLab 8 for cycling tests of 8S1P chain to test 8 cells at the same time.

It is important for me to have each individual cell charged fully to 3.6V and less then...
Forum: FMA Direct
04-14-2011, 10:31 AM
Replies: 2
Views: 1,977
Posted By miernik

can two FMA Cellpro PowerLab 8 chargers be stacked together to charge at 80A?

I want to use the FMA PowerLab 8 for cycling tests.

I want to test A123 AMP20M1HD-A pouch cells which are 20Ah capacity, and I want to test them at 4C, which means at 80A.

The Cellpro Powerlab...
Forum: FMA Direct
04-05-2011, 06:47 PM
Replies: 4
Views: 2,563
Posted By miernik

is it OK to connect the FMA Cellpro PowerLab 8 v2 input straight to the alternator?

And another thing that bothers me: will it be OK to connect the FMA Cellpro PowerLab 8 v2 input straight to the (quite unstable) output of a car's alternator, or would you recommend putting something...
Forum: FMA Direct
04-01-2011, 04:40 AM
Replies: 6
Views: 4,657
Posted By miernik

Would there be a problem if I would be taking out...

Would there be a problem if I would be taking out of the battery more then I am putting in? For example having the charger attached with solar-panel with 1A current as source and starting the car...
Forum: FMA Direct
04-01-2011, 03:11 AM
Replies: 6
Views: 4,657
Posted By miernik

can the FMA PowerLab 8 v2 be used to charge the battery in use?

Can the FMA PowerLab 8 v2 be used to charge a battery while it (the battery being charged) is being used to power other devices?

Of course the devices being connected to the battery are OK with...
Forum: FMA Direct
04-01-2011, 03:01 AM
Replies: 17
Views: 5,862
Posted By miernik

Thanks. That makes me ask another question: are...

Thanks. That makes me ask another question: are the input and output sides of the charger electrically isolated from each other (i.e. the high frequency transformer of the SMPS inside is the only...
Forum: FMA Direct
03-30-2011, 11:05 PM
Replies: 17
Views: 5,862
Posted By miernik

I thought this forum is FMA support. I got here...

I thought this forum is FMA support. I got here through a link in the lower left corner of http://www.fmadirect.com/
Forum: FMA Direct
03-30-2011, 10:47 PM
Replies: 17
Views: 5,862
Posted By miernik

Yes, but only the negative terminals (black...

Yes, but only the negative terminals (black wires), not the red wires of course!
Forum: FMA Direct
03-30-2011, 09:04 PM
Replies: 17
Views: 5,862
Posted By miernik

Well, now I am confused, because the last...

Well, now I am confused, because the last sentence contradicts with the first two.

So sharing ground is a good idea, but only if the source and charged battery are similar batteries? How do you...
Forum: FMA Direct
03-30-2011, 08:30 PM
Replies: 17
Views: 5,862
Posted By miernik

is it OK to use the FMA PowerLab 8 v2 with common ground for input DC and output?

Is it OK to use the FMA PowerLab 8 v2 with the negative terminal of the DC input connected to the negative terminal of the charged battery?

The reason I ask is that I want to use it in a car to...
Showing results 1 to 15 of 15


 
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