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Thread: New to lipo, need help!!

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Old 07-21-2014, 09:22 PM   #1
Rock Stacker
 
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Default New to lipo, need help!!

Ok, just got a new lipo charger for my new Zagi-33's 3S 2100mah batt.

The batt tells me I can charge this at 10.5a (5C) is that safe?!

What should I be charging this at?

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Old 07-21-2014, 09:27 PM   #2
Rock Crawler
 
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Default Re: New to lipo, need help!!

5C is a common charge rate MAX. I only charge and 3C max, just a personal preference.
2.2amps is 1C
4.4=2c
6.6=3c
you get the idea...
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Old 07-21-2014, 09:33 PM   #3
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I'm using a Team Tenergy charger. I'll charge it at 3c
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Old 07-22-2014, 06:39 AM   #4
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I prefer to charge at 1c, but I am never in a hurry.
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Old 07-22-2014, 07:59 AM   #5
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Default Re: New to lipo, need help!!

Quote:
Originally Posted by Docwolf View Post
I prefer to charge at 1c, but I am never in a hurry.
Same here, I have a 4-port charger anyways, so I charge all my packs at 1c, always have. I don't have problems with puffed packs, etc, like some others do.
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Old 07-22-2014, 09:39 AM   #6
I wanna be Dave
 
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Default Re: New to lipo, need help!!

I charged once at 5.0A
using a 3s 2200mah/30C
After the charge had completed...
a coupla' minutes went by...
then all of a sudden the pak began to swell.

when I realized what was occurring...
I ran outside with the LiPo and placed it on the cement patio.
In another 30 seconds it burst... then caught fire !

I use a Hobby People TAZR auto detect LiPo charger
that allows the amps to be adjusted.

but I now charge mine at 2.1A (1c)
as I didn't like the outcome of that LiPo burst.

I have not had that re-occur since...
and I have more then a few of this particular 3s LiPo.

I don't mind the wait...
as I usually charge up my all of my LiPo's
the evening prior to the day's use.

But then...
it was pointed out to me that I have cheap batteries
and that was to blame.

Most mfgr's/distributor's will not warranty a LiPo that has burst and burned to ash.
Justifiably, because there is no evidence remaining,
after it bursts and burns, to verify whom was the mfg'r/dist.

Fast, high amp charges will also reduce the life cycles of the LiPo.
So a slower charge at lower amps is less stressful to the LiPo pak
and will improve it's consumable life (cycles).

to each their own of course.

I have a 2s 5000mah/60C that I regularly charge at 5.0A
and that has never been of issue.

Regardless, I would never charge my LiPo's at any higher amps then what is
recommended by the mfg'r and labeled on the LiPo.
And even then... I prefer a slower, safer charge.
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Old 07-22-2014, 10:39 AM   #7
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Default Re: New to lipo, need help!!

^^ Excellent advice! ^^
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Old 07-22-2014, 06:02 PM   #8
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Default Re: New to lipo, need help!!

Quote:
Originally Posted by TacoCrawler View Post
Fast, high amp charges will also reduce the life cycles of the LiPo.
So a slower charge at lower amps is less stressful to the LiPo pak
and will improve it's consumable life (cycles)
Uh untrue, ill conceived, and total bullshit. But it's all good. There's really no reason to charge batteries at full throttle for a crawler anyway right?
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