[NSRCA-discussion] TP 1010 testing
Cameron Smith
dentdoc007 at adelphia.net
Tue Mar 28 12:42:04 AKST 2006
Some of the V1.85 units=first 100 units had faulty cooling fans.
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Rex
LESHER
Sent: Tuesday, March 28, 2006 4:14 PM
To: chad at f3acanada.org; NSRCA Mailing List
Subject: Re: [NSRCA-discussion] TP 1010 testing
I say that Chad needs to open up the cooling air inlet on his charger,
try it all again, and then report back so we can all benefit from his
experiment. All those in favor, raise your hand....
Chad, I just looked at my chargers, and agree with you on the inlet
size. They appear too small. The other interesting thing is that my
original charger came with a hard foam pad to set the charger on. I
assumed that it is for raising the charger up and creating a flat table
for the charger to rest on, providing a space for air to pass under the
base. The two new chargers didn't come with the pad. When I was having
the over charge problem, I felt all around the charger and found the
base to be very warm, so that could be part of the problem also. I
believe I am going to open up the air inlet, and put some larger pads on
the bottom of the charger to raise it up higher to allow more air around
it.
Rex
----- Original Message -----
From: Chad <mailto:chadnortheast at shaw.ca> Northeast
To: NSRCA Mailing List <mailto:nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, March 28, 2006 9:53 AM
Subject: Re: [NSRCA-discussion] TP 1010 testing
In multiple sessions the display has showed a cell at over 6V (on
multiple chargers, 210 balancers connected) then the next update
(charger updates every 10 seconds) shows a normal balanced pack, there
is no way a cell is going to be at 6V and back to 4V 10 seconds later.
I have charged with the balancer disconnected from the charger and never
receive the audible alarm from the balancer for over-volt....I have
also charged while measuring tap voltage continuously (major PITA!) and
again the pack itself is fine...pack remains at worst during the charge
about 0.020 measuring with the Fluke....and it perfectly in balance at
termination.
I can charge with my Schulze's, no issue, I can charge with my 205's not
connected, no issue....so the only conclusion that can be drawn is there
is an issue with the charger. It almost always happens on a repeat
charge (charger starts hot)...and almost always happens near the 4.05V,
4.10V/cell range...once the charger approaches 4.2V/cell the problem
goes away.
Overall its a slick setup, just this one annoying problem.
Chad
----- Original Message -----
From: Dean Pappas <d.pappas at kodeos.com>
Date: Tuesday, March 28, 2006 10:43 am
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
> [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.
> >
> >
> >
> >
> >
> > _______________________________________________
> > NSRCA-discussion mailing list
> > NSRCA-discussion at lists.nsrca.org
> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> >
>
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