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Old 07-17-2006, 07:35 PM   #1
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Default Battery Care..What it All Means

When I was looking to get the proper pit tools it was advised I look at the Trinity Absolute Zero, Tekin Battery Doctor and Trinity D-90. The question I have is what do they all do? I read everything on each one but got a bit confused.
Trinity Absolute Zero - makes sure every cell is discharged to the same level
Trinity D-90 - appears to discharge to .90 level for storage purposes
Tekin - i think the same as the D-90....

So what do I need??? Good charger, good power supply, big fan for cooling, and what of the above?
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Old 07-17-2006, 07:45 PM   #2
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Trinity Absolute Zero - just like the name says, will keep discharging cells down to zero, no cutoff.
Trinity D-90 - 0.9v cutoff for each cell
Tekin - will go down to 0.5v
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Old 07-17-2006, 08:01 PM   #3
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CarKing--X-Ray is right on with his explanation.... You will be in good shape with any of these products, but I would say the new D-90 would be your best bet out of these three products. I currently use the MuchMore unit which is very similar to the D-90. The most important thing is that you do the same thing with your cells from the first charge through the entire life of the pack. Cared and maintained properly, the new packs we have today will produce great power for many cycles. If you have any questions concerning how I care for my cells, feel free to PM me. We actaully are neighbors as I live in Mission Viejo as well. I would be happy to sit down with you to dicuss how my drivers and I maintain our packs....
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Old 07-17-2006, 08:06 PM   #4
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You want to discharge/equalize your batteries to 0.9v per cell before recharging them. This keeps them performing best. To the best of my knowledge you don't want to totally discharge your NiMH batteries. Someone please correct me and fill in the spaces if need be.
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Old 07-17-2006, 08:11 PM   #5
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Add in novak smart tray: .9 down to zero in .1 increments

Basically "ALL" trays discharge cells down individually. The differences lie in the following:
-At what amp rate does it discharge?
-How low a voltage cut off?
-Voltage cut off adjustable?
-Can it dead short? zero?
-does it require a power supply?
-Is it polarity sensitive?
-how many many cells?

There are probably more factors but for the most part you dump a on the track hit it with 20-30 amps then tray it. Different cells/matchers have different requirements..

Todays cells kick ass and thankfully all this great technology we needed 10-15 years ago for crap cells with low capacity is almost not needed today since we have almost unlimited run time and extremly high voltage.

But as racers we want to squeeze the most of our gear.

Personally i do the following. And 10 others will post totally different recomendations
IB3800
multiple runs on one pack in same day:
1)Run car
2)discharge pack at 20amps(30 if i had it)
3)Tray charger down to .9 on novak smart tray
4)recharge

Last run of the day storage:
1)run pack in car
2)store pack(this still has capacity in the pack and some will say to discharge then charge for 5minutes but i say why bother if the pack still has power when i was in the car why go through the trouble)

AFter storage:
1)discharge at 20
2)tray to .9v
3)charge 6amps

For my GP3300s i still use ill DEAD short them after run discharge and tray to zero.

Anyway thats my input im sure you'll get even more and possibly even conflicting info have fun
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Old 07-17-2006, 08:14 PM   #6
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I do have a couple questions myself. When is the best time to discharge and equalize the batteries? Right after using them, right before charging them or any time in between?

Should you discharge with a light bulb tray then equalize? I assume you shouldn't just throw it on the discharge tray right away without using up most of the power first.
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Old 07-17-2006, 08:32 PM   #7
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Quote:
Originally Posted by SlamMan
I do have a couple questions myself. When is the best time to discharge and equalize the batteries? Right after using them, right before charging them or any time in between?

Should you discharge with a light bulb tray then equalize? I assume you shouldn't just throw it on the discharge tray right away without using up most of the power first.
Equalize before you charge. You want the cells to be as close together before you send a current through them in series.
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Old 07-17-2006, 10:40 PM   #8
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anyone traying their batts to 0.1? will this harm your cells? or are you better off equalizing to 0.9 regard;ess of IB or Gp cells. just wondering
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Old 07-17-2006, 10:50 PM   #9
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Quote:
Originally Posted by m i g v e a
anyone traying their batts to 0.1? will this harm your cells? or are you better off equalizing to 0.9 regard;ess of IB or Gp cells. just wondering
IB cells stay at 0.9. GP cells like the 3300s you can dead short or zero-volt equalize them.
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Old 07-17-2006, 10:56 PM   #10
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what about 3700s or 4300s?
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Old 07-17-2006, 11:50 PM   #11
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QUESTION: Does anyone here or knows who sell a GOOD charger w/ a DISCHARGER? I mean GOOD... Plus also some Battery Packs that are GOOD ENOUGH for PRACTICES or much better, for RACES but they shouldnt be LASPAG ha?
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Old 07-18-2006, 10:00 AM   #12
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Quote:
Originally Posted by Xanavi_R34
QUESTION: Does anyone here or knows who sell a GOOD charger w/ a DISCHARGER? I mean GOOD... Plus also some Battery Packs that are GOOD ENOUGH for PRACTICES or much better, for RACES but they shouldnt be LASPAG ha?

Competition Electronics Turbo 30,35 bl, or 35 GFX. Those will discharge at up to 30 amps.
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Old 07-18-2006, 06:20 PM   #13
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Quote:
Originally Posted by Joel Lagace
Personally i do the following. And 10 others will post totally different recomendations
IB3800
multiple runs on one pack in same day:
1)Run car
2)discharge pack at 20amps(30 if i had it)
3)Tray charger down to .9 on novak smart tray
4)recharge

Last run of the day storage:
1)run pack in car
2)store pack(this still has capacity in the pack and some will say to discharge then charge for 5minutes but i say why bother if the pack still has power when i was in the car why go through the trouble)

AFter storage:
1)discharge at 20
2)tray to .9v
3)charge 6amps

For my GP3300s i still use ill DEAD short them after run discharge and tray to zero.
What do you do to discharge them after storage? What do you mean by @20? What should I buy. I am looking to get the Much More Power supply and charger.
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Old 07-18-2006, 07:12 PM   #14
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Quote:
Originally Posted by CarKing
What do you do to discharge them after storage? What do you mean by @20? What should I buy. I am looking to get the Much More Power supply and charger.
20A.
Why get the Much More power supply? It's over-priced. This power supply works great and is a fraction of the cost: http://www.buyreliant.com/psupplies/psv200.htm
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Old 07-18-2006, 07:27 PM   #15
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10-4!!!!!! I love my pyramid power supply and soo so affordable

For discharging i use my reedy charger it has a 20amp discharger in it. Many better chargers will give you 10,20 to 35 amps of discharge. So thats how i dump down the pack. LRP,CE,REEDY and others offer discharger abilty, or integy ofers a stand alone dump box at 30amps
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