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Old 05-26-2005, 01:11 PM   #16
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So far here is what we know about treating the IB3800. Charge at 6 amps with a .03 peak detect for 6 cells and .02 for 4 cell. Try to get them to charge as close to your run as possible.

After your run if you plan on running it again in the same day bring it down to 5.40(6cell) and 3.60(4cell). Before you go to charge the pack place it in atray that will bring each cell down into the millivolts. My new personal favorite tray is the Integy 0-30. Leave the pack in this tray for a few mintues and then charge it back up.

If you plan on storing the pack for a few weeks make sure it still has some charge in it. The best thing to do is to bring it down to 5.4 or 3.6 let the pack cool down for awhile and then put 500 seconds of charge back in it this will keep the runtime as high as possible. If your not worried about runtime then there is no need to do this step.


These are the first tips we have on this cell and as we match up more and get more people running them we will most likely have updated maintenance tips. We will post them as we figure them out.
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Old 05-26-2005, 02:19 PM   #17
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Quote:
Originally Posted by Rockape
Just wondering about this "flat" in the 3600's. I have just purchased 7 matched packs and I am planning to use it mainly for stock with an intention to move up into modified shortly. Is this flatness a major issue with this battery? Also, what are people doing as far as battery maintainence is concerned? (eg. charge rates, types-linear, flex or step, discharging rates and storage methods -do you dead short them or store them on zero racks?)

Sorry about all of the noobie questions. I have been out of the loop for a few years.
In mod oval running 6 turns and 7 turn motor it has been. I do know that in on-road the 3600's are awsome. The fastest on-road guys in our area mod and stock are running the 3600's. Oval just puts weird amp spikes on the cells, really high spikes for a short duration but over and over again anywere from 70-120 times a race. 2 times a lap. Its not good for any cell. The 3800 IBs are not phased by it, the 3600's were.

DW
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Old 05-26-2005, 08:58 PM   #18
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Quote:
Originally Posted by Danny/SMC
After your run if you plan on running it again in the same day bring it down to 5.40(6cell) and 3.60(4cell). Before you go to charge the pack place it in atray that will bring each cell down into the millivolts. My new personal favorite tray is the Integy 0-30. Leave the pack in this tray for a few mintues and then charge it back up.

how many milivolts? what if im using the Novak smart tray? how many volts should the cutoff be?

right after traying should i charge it right away, or let it cool for a couple of minutes?

thanks - jason
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Old 05-27-2005, 01:26 AM   #19
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Yes charge after you tray them. I believe the Novak tray to be to slow to discharge them inbetween charges. You should use a tray with a resistor only. The Integy 0-30 works real well and it's fast.
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Old 05-27-2005, 04:28 AM   #20
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Quote:
Originally Posted by Danny/SMC
Yes charge after you tray them. I believe the Novak tray to be to slow to discharge them inbetween charges. You should use a tray with a resistor only. The Integy 0-30 works real well and it's fast.

Thanks... will give the Integy a try... just curious, whats the cutoff of the integy tray?
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Old 05-27-2005, 06:31 AM   #21
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I have the integy 0-30 just got it, should I dump down to about 5.4 then tray them on the Novak to get an accurate 5.4 then charge and go?

Also, will 3800 really be that different than a 3300 for stock and 19t. I mainly run stock, but will run 19t at vegas and novak. Not sure if it's worth stepping up to a 3800 cell for stock.
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Old 05-27-2005, 06:58 AM   #22
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Quote:
Originally Posted by bigdog xxx-s
will 3800 really be that different than a 3300 for stock and 19t. I mainly run stock, but will run 19t at vegas and novak. Not sure if it's worth stepping up to a 3800 cell for stock.

i think its really worth it... better voltages, lower IR, simply translates into more punch, which will be very beneficial to stock and 19turn...
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Old 05-27-2005, 08:24 AM   #23
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Quote:
Originally Posted by highwayman
Thanks... will give the Integy a try... just curious, whats the cutoff of the integy tray?
With the 0-30 Integy tray, the lights go out at 5.4 volts but it keeps discharging all the way down to 0.
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Old 05-27-2005, 08:24 AM   #24
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Quote:
Originally Posted by Tempest2000
They are the same size as the 3700 GP's they are bigger than the 3300 and 3600 batteries. They are bigger in diameter, but the length is the same.

They will fit offroad fine. Most onroad cars unless they are new or you have a new chassis you will have to file the battery slots to make them fit properly. Most kits are already being made for the new cells.

Michael
AHHHHH...I wish I would have know that they were larger before I bought them!!!
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Old 05-27-2005, 08:31 AM   #25
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Quote:
Originally Posted by koabich
With the 0-30 Integy tray, the lights go out at 5.4 volts but it keeps discharging all the way down to 0.

isn't this bad for the cell to go down to 0 volts ???
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Old 05-27-2005, 08:46 AM   #26
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For the IB it may be bad, many people will dead short the gp cell. What a lot of people will so is hook up a voltmeter or charger leads onto the 0-30 then watch the voltage drop down to 5.4 then unhook the battery. Thats why I was asking about dropping down to lets say 5.6 then tray on the novak to 5.4 to equalize the cell after a 30 amp dump.
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Old 05-27-2005, 08:50 AM   #27
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Quote:
Originally Posted by highwayman
isn't this bad for the cell to go down to 0 volts ???
There is a big debate about this but Promatch has in there instructions that you can take them down to 0.0V just make sure the tray or discharger does not allow cell reversal. Oh yea Promatch is to release the IB3800 I think later today...I will order some for sure...They say the 3800 has even more puch than the 3700 so we will see.
Oh I take my packs down to 0.0V the night before a race and then put them right on the charger...It gets great results and I have great IR after. I also just got hte Spintec Battery Manager it also helps to reduse IR...which we all know means MORE PUNCH and Better RUNTIME.
Hoep this helps.
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Old 05-27-2005, 08:55 AM   #28
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Quote:
Originally Posted by bigdog xxx-s
For the IB it may be bad, many people will dead short the gp cell. What a lot of people will so is hook up a voltmeter or charger leads onto the 0-30 then watch the voltage drop down to 5.4 then unhook the battery. Thats why I was asking about dropping down to lets say 5.6 then tray on the novak to 5.4 to equalize the cell after a 30 amp dump.
Bringing the cell down to zero is completely different than dead shorting the pack.

As Danny form SMC mentioned in an earleir post, do not store them at 0. But bringing them down to 0 and then charging them right away is probably the best way to charge them.
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Old 05-27-2005, 09:35 AM   #29
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What kind of voltage can we expect from the SMC "Economy" packs such as this:

http://www2.towerhobbies.com/cgi-bin...?&I=LXKJZ1&P=0
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Old 05-27-2005, 11:12 AM   #30
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Since were still in the early stages of matching these cells and we get new shipments frequently it's hard for us to guarantee what the specs will be on our 3800s. So far our high end pack has 390+, 1.17+ , 1.9-2.3 our 3806E has 390+, 1.165-1.169 , 2.0-2.4 these are 35 amp numbers.

Basically the 3806E is intended for the racer who wants a good matched pack and understands that .005 - .01 of a volt reallly doesn't make a big difference and the price makes it real appealing.

Last edited by Danny/SMC; 05-28-2005 at 02:37 AM.
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