[NSRCA-discussion] LI-IO packs

[Ken Velez]

Scott

 

The purpose of selecting the correct chemistry for the battery you are going
to charge is the end voltage. As Li-Po is 3.7V per cell, Li-Io  3.6V and
Li-Fe are 3.3V per cell. A123 cells are the same voltage value per cell as
the Li-Io 3.6V per cell, I would use the A123 setting and charge as 2S at 1C
(5.2A).

 

Ken

 

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Michael
Ramsey
Sent: Thursday, October 31, 2013 11:06 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] LI-IO packs

 

I've used the A123 setting with good results.

 

On Thu, Oct 31, 2013 at 9:06 AM, SilentAV8R <Silentav8r at cox.net> wrote:

Sorry, can't help on the Cellpro charger. But I can confirm you are correct
that the 4-cell (2S2P) 5,200 packs (Fromeco??) are charged using a 2S
setting. I have charged using the LiPo setting before I got a charger that
did Lion cells, not ideal from what the folks at Fromeco say, but it can be
done.

A good option if you cannot sort out the cellpro is the iChargers from
Progressive. I bought the little 106b and love it. Great little charger.

Bill in OC

http://www.progressiverc.com/icharger-106b.html




On 10/31/13 6:55 AM, Scott McHarg wrote:

Morning y'all,

 

I've spoken to a few people about charging Lithium Ion packs but we did not
arrive at a definitive answer.  I need to understand what the best solution
(besides buying another charger) is for my situation.

 

I consider myself fairly knowledgeable about the Cellpro 10XP.  Usually,
it's me giving the help but I'm not sure what to do here.  Here's the
scenario:

 

 Cellpro 10XP Multi-Chemistry Charger.  The User Manual and everything about
the charger says that it can charge the ION packs.  So, I go to program a
preset for this but in the software, there is nothing that says anything
about ION packs.  There is LiPo, Pb, A123, Ni-Cd, and Nickel Metal.  I have
some ION 7.4V 5200mah packs that I need to charge and a 2600mah pack for the
ignition on a 42% Edge 540.  The packs are made of 4 cells but are wired so
that they are only 2 (2 in series, 2 in parallel) cells.  As close as I can
tell, I should select the LiPo 2sU (2 cell unbalanced) but I don't want to
make a mistake.  Someone told me that would be OK and another said that if
you program the charger by the charger instead of the software, there is an
ION setting but I haven't confirmed that yet as it was late last night when
I was checking.

 

Anyone have any idea what to do to charge these packs?

 

Thanks,

 

-- 
Scott A. McHarg
Sr. Systems Engineer - Infrastructure

 

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