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Who charging 20+ amps or more now??

Who charging 20+ amps or more now??

Old 04-02-2013, 08:56 PM
  #31  
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Wouldn't it be just as easy to warm with a heater before running.
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Old 04-02-2013, 08:58 PM
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Originally Posted by AARON YOUNG
Wouldn't it be just as easy to warm with a heater before running.
It helps but doesn't do the same thing. Trust me I've tried and tested it over and over. High charge rate and heating from the inside is better.

EA
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Old 04-02-2013, 09:14 PM
  #33  
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Guess I'm buying a new charger.
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Old 04-02-2013, 09:34 PM
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Originally Posted by EAMotorsports
My own brand. Www.teameam.com

EA
can Orca's handle the current?
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Old 04-02-2013, 10:13 PM
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Originally Posted by EAMotorsports
My own brand. Www.teameam.com

EA
Looks like good performance packs.

What power supply are you using to feed the 4010? Are you charging to the 4.2V per cell each time?

Last edited by Team Grid RC; 04-02-2013 at 10:47 PM.
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Old 04-02-2013, 10:58 PM
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Originally Posted by EAMotorsports
My own brand. Www.teameam.com

EA
Originally Posted by Jonnydb
i can say with all words thats a great battery!!

+1
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Old 04-03-2013, 04:43 AM
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Originally Posted by AARON YOUNG
Guess I'm buying a new charger.
The ICharger 4010 Duo is an awesome charger!

Originally Posted by bigz
can Orca's handle the current?
I would think they could since I know the manufacture of the cells and the C rating is pretty good on them. But I have not tested them at that to see. Although I did charge all of Andrew Hardmans batteries at the Snowbirds on my ICharger at 40 amps and they handled it fine there but I have not done any long term test with their brand.


Originally Posted by Team Grid RC
Looks like good performance packs.

What power supply are you using to feed the 4010? Are you charging to the 4.2V per cell each time?
I am using a 47 amp server power supply. The 4010 charger has a step up converter inside. So Ive charged two packs at the same time at 40 amps each off of the 47 amp power supply with no issues at all. It only draws 36 amps when charging at 40 and 40.

Yes I charge to 4.2V unless its a race that allows more then I go to what ever that limit is.

Thanks
EA
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Old 04-03-2013, 05:08 AM
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Originally Posted by EAMotorsports
The ICharger 4010 Duo is an awesome charger!


I would think they could since I know the manufacture of the cells and the C rating is pretty good on them. But I have not tested them at that to see. Although I did charge all of Andrew Hardmans batteries at the Snowbirds on my ICharger at 40 amps and they handled it fine there but I have not done any long term test with their brand.




I am using a 47 amp server power supply. The 4010 charger has a step up converter inside. So Ive charged two packs at the same time at 40 amps each off of the 47 amp power supply with no issues at all. It only draws 36 amps when charging at 40 and 40.

Yes I charge to 4.2V unless its a race that allows more then I go to what ever that limit is.

Thanks
EA
If you use two or three of the HP servo power supply's things run a lot cooler. But you have to float the ac ground on all but one PS.
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Old 04-03-2013, 05:46 AM
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Originally Posted by jsinclair
If you use two or three of the HP servo power supply's things run a lot cooler. But you have to float the ac ground on all but one PS.
My power supply never cracks a sweat. Ive only charged two packs at 40 at the same time a few times and you could just barely feel it warm. 2 packs at 30 and its still room temp. I havent seen the need to worry about running it as a 24v setup yet. But I suppose if you were charging say 2 4S packs it would probably get warm due to using more wattage.

EA
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Old 04-03-2013, 06:43 AM
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Charging at 40+ amps is fast.
And has no ill effects on the lipos.

I believe you need a minimum of 20 amps to get the IR benefits out of your lipos.
This would be enough to get the heat in them on first charge.
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Old 04-03-2013, 09:32 AM
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350$ I will just continue being slow!!!
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Old 04-03-2013, 09:56 AM
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Originally Posted by AARON YOUNG
350$ I will just continue being slow!!!
Just get the Track Power VR-1 20 amp/ 6 amp duel charger $199.00 at Tower Hobbies.

All you need is a 20 amp power supply if you don't have one already.
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Old 04-03-2013, 10:47 AM
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Muchmore power supply's are very good��
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Old 04-03-2013, 10:55 AM
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Originally Posted by Mr RCTech
Just get the Track Power VR-1 20 amp/ 6 amp duel charger $199.00 at Tower Hobbies.

All you need is a 20 amp power supply if you don't have one already.


+ YouTube Video
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Old 04-03-2013, 11:24 AM
  #45  
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Originally Posted by EAMotorsports
The ONLY thing that charging at higher amps will do is: Charge the battery faster, cut down on the life of the pack (from 300 cycles to 200 cycles maybe all speculation), and it will warm the pack internally which will decrease IR and increase voltage. But with all the big races checking battery temp it will not help as it wont pass tech.

The heat is the only reason it increases the voltage and lowers IR. If you let the pack cool to room temp and check it it will be the same as if you charged it at 5 amps. I have yet to see a charger that has any special voodoo built in that will charge and make a battery faster without using heat.

Ive been charging at 40 amps since December with the ICharger Duo 4010 came out. I raced every week all the way up till the birds. I only keep two packs to my name at a time. I practice and race on those two packs every week in TC. Those packs are still good today as they were new in December. The 40 amps thus far has not shown any ill effects at all. Generally when I go to the track its 4-5 charges per pack per day. There were some 3 day races in there too.

The pack I won the birds with was charged at 40 amps every single charge. I used it in both 17.5 and 13.5 TC all week in every practice and every race. Then I sent it to Josh Cyrul and he did the same with it in Modified and 13.5 sedan which he won both classes. That battery was put through hell and still cycles the same as it did when it was new a week before the birds.

The key to keeping batteries fresh is USING THEM! And making sure they dont sit with a full charge or zero charge in them. Not being used is a Lipo's worst enemy I have found.

EA
That means the ROAR champ is a cheat! The rules do not allow charging at more than 1C! He should have been dq-ed!

It is very sad to see people are pushing the limits again on lipo's. Although there are knowledgable people around and charging at higher currents is not directly unsafe, it just takes one bonehead attempting something stupid to gain an edge and there is a lipo fire. And they are not nice!

If we all just use the rule and charge at 1C (or change it to 2c to save time) all this heating of pack tomgain an edge would not exist. Now everybody is more or less forced to charge at ridiculous currents... Especially in the 'stock' classes where the new guys with the least knowledge of what is fast and what is dangerous are....

Have fun with 40 amps. Thanks for making life more difficult than it should.
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