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Old 01-04-2013, 10:21 AM   #1
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Default What's the highest 'C' you've ever charged a li-po at?

Anyone ever charged at a super high 'C' level (5+)? Did your batteries explode?
Just asking for fun, not trying to blow up my packs or do anything irresponsible.
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Old 01-04-2013, 10:33 AM   #2
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I just connect mine to a arc welder, they charge real fast!
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Old 01-04-2013, 11:56 AM   #3
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I charge small 2000mah 3s packs at 20amps (10c) regularly, no problems yet. But I'm not recommending anything.
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Old 01-04-2013, 12:02 PM   #4
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3x hyperion 5000mah 25C lipos at 4C during 10 hours
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Old 01-04-2013, 12:17 PM   #5
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Damn I thought I was crazy charging my 2s 6500's at 13 amps! Crazy...
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Old 01-04-2013, 12:23 PM   #6
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None of these high C charging rates perform better than charging at 6Amps... Maybe a faster charge, and less battery life...
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Old 01-04-2013, 01:16 PM   #7
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Guys must like to spend $$$$ on batteries!!!
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Old 01-04-2013, 01:47 PM   #8
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Guys charging at low rates like to put $$$$ in their batteries..

I have three lipos per car. All 5C capable. I charge them at 3C and can run my buggy without interruption.

How many lipo will you need to drive without interruption charging them at 1C?

They are 5C capable, who cares?

If we managed to drive during 10 hours with lipos charged at 4C without even waiting for them to get cold (thanks hyperion) you shouldn't worry too much. Not a single lipo had a problem, I used then for a year more after this and even sold them.

Many drivers always repeat charge at 1C blabla, I have my lipos for longer than the one I race with for a simple reason: my 5C capable charger has a great balancer too. And THIS is even more important. As soon as your LVC and storage is good your lipos will last if you don't push them too hard.

Most stupid thing I saw: a guy owning ten lipos that were worth more than a thousand dollars, all 6C capable and charged with a crappy charger. That's a real waste of money if you ask me
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Old 01-04-2013, 02:01 PM   #9
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I just recently bought a new charger that does 40 amps on both sides at the same time. Been testing my packs for a couple weeks charging them that way. No ill effects at all so far. 6500 70C packs.

There is an advantage and disadvantage to charging that high.

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Old 01-04-2013, 02:01 PM   #10
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Quote:
Originally Posted by Pulse_ View Post
Guys charging at low rates like to put $$$$ in their batteries..

I have three lipos per car. All 5C capable. I charge them at 3C and can run my buggy without interruption.

How many lipo will you need to drive without interruption charging them at 1C?

They are 5C capable, who cares?

If we managed to drive during 10 hours with lipos charged at 4C without even waiting for them to get cold (thanks hyperion) you shouldn't worry too much. Not a single lipo had a problem, I used then for a year more after this and even sold them.

Many drivers always repeat charge at 1C blabla, I have my lipos for longer than the one I race with for a simple reason: my 5C capable charger has a great balancer too. And THIS is even more important. As soon as your LVC and storage is good your lipos will last if you don't push them too hard.

Most stupid thing I saw: a guy owning ten lipos that were worth more than a thousand dollars, all 6C capable and charged with a crappy charger. That's a real waste of money if you ask me
What chargers would you recommend? Not trying to pick a fight, just curious as to what makes one brand better than another.
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Old 01-04-2013, 02:38 PM   #11
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There is no such safe way to drive your Car with three lipos with interruptions.... That would mean that the lipos are left charging at 30Amps UNATTENDED !!! I am now not Racing at my local track because of a fire caused by some smart guy who also charged his lipos unattended , so he could run without interruptions...Wow.... Huge fire,, caused the fire department and the town to shut the track down..... I'd prefer coming to race with more packs and charging them in my presence. Only get on the driverstand when your charger and extra lipo packs are disconnected.....
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Old 01-04-2013, 02:43 PM   #12
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Drive and race safely, and forget about driving without interruptions !!!!!! Wouldn't you have to stop to change packs in 10hours: that's an interruption right there !!! Where did you get that idea anyway????... Wow....
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Old 01-04-2013, 03:02 PM   #13
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Bertrand's vacation from RCTech was too short.

I usually charge at 12A. Once in a while I'll go as high as 18A, like if I forgot to hit start and only have 10 minutes before a race. I usually just use one battery per car. Don't really need more than that.
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Old 01-04-2013, 03:14 PM   #14
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I have always charged my packs at 10amps. Never had a problem with puffing a pack. Been running the same packs for 3 seasons!
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Old 01-04-2013, 03:20 PM   #15
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Quote:
Originally Posted by JiuHaWong View Post
What chargers would you recommend? Not trying to pick a fight, just curious as to what makes one brand better than another.
hyperion eos 720inet3

Quote:
Originally Posted by bertrandsv87 View Post
There is no such safe way to drive your Car with three lipos with interruptions.... That would mean that the lipos are left charging at 30Amps UNATTENDED !!! I am now not Racing at my local track because of a fire caused by some smart guy who also charged his lipos unattended , so he could run without interruptions...Wow.... Huge fire,, caused the fire department and the town to shut the track down..... I'd prefer coming to race with more packs and charging them in my presence. Only get on the driverstand when your charger and extra lipo packs are disconnected.....
Because of me three forests burnt recently, a child exploded and the third person lost his hand. Now I run my cars with water, just to make sure everybody is safe.

Seriously? Who said I didn't ask a co-driver to overlook the charge? Do you think I run 10h endurance alone? Some guys are just too funny
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