[NSRCA-discussion] TP 1010 testing

Tue Mar 28 12:25:00 AKST 2006

Hey Dean,
I cked out the FMA charger also before buying, actually it was the one I 
wanted to get.  Still using tp paks I asked the question on the fma board 
how this charger would work with the tp paks, they ignored my question.  I 
assume that it would have to charge through the balance connector?  Would 
the connector be able to handle the 6amps+?  or was it a stupid question?  I 
know they plan on coming out with tp connectors.
Bob

----- Original Message ----- 
From: "Dean Pappas" <d.pappas at kodeos.com>
To: <chad at f3acanada.org>; "NSRCA Mailing List" 
<nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, March 28, 2006 12:43 PM
Subject: Re: [NSRCA-discussion] TP 1010 testing

> Hi Chad,
> I don't know the internals of the TP circuits, but if the data link from 
> balancer to charger is a simple alarm, then
> the balancer will have to produce the same alarm/output in either a real 
> over-voltage, or a "can't keep up with a growing imbalance" condition.
> Either way, the circuit worked fine, to avoid problems.
>
> The FMA just seamlessly slows the charge rate down, and resumes at 
> high-rate, when the imbalance is taken care of.
>
>
> Dean Pappas
> Sr. Design Engineer
> Kodeos Communications
> 111 Corporate Blvd.
> South Plainfield, N.J. 07080
> (908) 222-7817 phone
> (908) 222-2392 fax
> d.pappas at kodeos.com
>
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Chad
> Northeast
> Sent: Tuesday, March 28, 2006 12:28 PM
> To: NSRCA Mailing List
> Subject: Re: [NSRCA-discussion] TP 1010 testing
>
>
> Hi Bob
>
> The overvoltage seems to be quite common...I get it frequently...the packs 
> are not going over voltage though...checked with my Fluke on recharge. 
> Seems to happen when the charger/balancer gets hot...I have seen it 
> display over 6V for individual cells.
>
> My charger goes into CV at 41V....but I have also had them terminate the 
> charge early (41V)....unsure as to why.
>
> Chad
>
> ----- Original Message -----
> From: Robert Mairs <robertm at sssnet.com>
> Date: Tuesday, March 28, 2006 8:51 am
> Subject: [NSRCA-discussion] TP 1010 testing
>
>> Got tired of building this last weekend, and decided to do some
>> testing of
>> the TP1010c charger.  Debated whether to post this, but some might
>> be
>> interested.
>>
>> All tests were done with the 5s3p 6000 prolites that have 90-100
>> cycles on
>> them.
>>
>> First off these packs haven't been touched since the end of
>> september, in
>> storage all winter.  So I proceeded to do a 1c charge, and then
>> discharged
>> with a cba to ck pack capacity.  They're holding up quite well
>> with about a
>> 4% drop in capacity as compared to new.  1c charge was quite
>> uneventful,
>> mostly getting accustomed to the charger.  I used both the 210 and
>> 205
>> balancers, both worked well with the system.  I did order 2 charge
>> systems,
>> but alas one charger had problems and has been sent back to
>> thunder power.
>> The push buttons seemed to lock up after a few seconds.  Only way
>> to get it
>> to unlock was to power it down.  Upon reactivation it would seem
>> alright,
>> but then the problem would reappear.  This was over several attempts.
>>
>> I then decided to do a 10s charge after deep cycling the pack to
>> get a mah
>> reading.  Resting voltage of the pack 34.992.
>>
>> A .029 spread over the 10 cells.  Close to the .03, but the
>> balancer said it
>> was ok to do normal charge.
>>
>> Charger started the initial charge for about 4 min then ramped up
>> to 5amps
>> as it got close to 37volts.  At 40volts charger went into cv from
>> cc which
>> seemed a little early??  Balancer was working pretty hard by this
>> time.  Not
>> sure at what point it was, but the alarms and bells started going
>> off, and
>> the charger shut down stating overvoltage on cell 6.  Balancer was
>> pretty
>> hot and quite active.  Not sure why it couldn't keep up, but it
>> didn't.  Let
>> the pack continue to balance out, and restarted the charge which
>> took about
>> another 400mah before pack was fully charged.  Anyways, found out
>> the
>> overvoltage feature works!  Wisdom gained, if that big of a cell
>> spread,
>> balance it out first, but I was kind of surprised this happened.
>> First
>> because the balancer said ok, 2nd I thought the charger wouldn't
>> ramp up the
>> current until all cells were within specs, 3rd I didn't think the
>> balancer
>> would have any problem at 5amps which is only a .8c charge.
>>
>>
>>
>> Redischarged the packs, taking out about 4500mah.  Pack voltage
>> this time
>> was at 37.26 with only .006 spread over the 10 cells.  Started the
>> same 10s
>> charge, this time uneventful til completion.  The balancer was
>> quite active,
>> but didn't heat up as the first charge did.  Total charge time was
>> 65
>> minutes and put in 4594mah.  Balancer was still active at end of
>> charge.
>> cell voltage spread was .012 over the 10 cells, pack voltages were
>> 20.86 and
>> 20.84.  Not sure I like the 10s feature.
>>
>>
>>
>> Decided to try a 1.5c charge on one of the 5s packs.
>>
>> Resting voltage 18.68 with a .005 spread on the 5 cells.  Set to
>> 5cells
>> 9amps, fast charge.
>>
>> 1st 1000mah at about 7min.
>> 2nd 1000mah at about 13min.
>> at 30min was at 3.86amps, voltage at 21v.  4290mah
>> 31min   3.2amps, 4350mah
>> 32min   2.78amps, 4390mah
>> 33min   2.33amps, 4437mah
>> 34min   2.13amps, 4474mah
>> 35min   1.75amps, 4506mah
>> 36min   1.58amps, 4533mah
>> 36min 52sec  charge terminated at 4554mah
>>
>> cv kicked in at 20.48volts
>>
>> Ending voltage was 20.85 with a .006 spread over the 5 cells.
>> Noticed no
>> heat buildup in pack, or balancer.  Balancer showed little
>> activity through
>> out the charge.  Didn't work nearly as hard as the successful 10s
>> charge.
>> Used the 205v balancer on the 1.5c charge.
>>
>> Also tried the storage discharge and charge which worked quite
>> well.  The
>> discharge came closer at 19.26 volts, can only discharge a 1amp.
>>
>> Chargers quite easy to use.  I'm leaning towards the 1.5c charge
>> with 2
>> chargers.  It worked very well.  Will have to wait and see how
>> long it takes
>> to get my 2nd charger back.
>> Anyways that's the way it went for me for those interested.
>>
>>
>>
>>
>>
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