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Old 04-25-2005, 08:02 AM   #1
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Default GP's explosion

DON'T EVER CHARGE A PACK WITHOUT BEING THERE. (WATCHING THE TEMP).
DON'T OVER CHARGE. NEVER OVER 10 MV DELTA PEAK (THRESHOLD) PER CELL.
NEVER CHARGE OVER 6 AMP.
NEVER CHARGE OVER 120 DEG TEMP.
NEVER USE A METAL BATTERY HOLD DOWN AS THEY HAVE BEEN KNOWN TO SHORT OUT BATTERY PACKS.
ALWAYS WATCH THE TEMPERATURE OF BATTERY AND CHARGER.
NEVER CHARGE ON A METAL SURFACE THAT CAN SHORT OUT CELLS.
THESE BATTERY ARE POWERFUL AND BY NOT BEING CAREFUL YOU CAN AND WILL HURT YOURSELF OR SOMEONE YOU LOVE.

was taken from power push web site.
Thanks, Tony.
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Old 04-25-2005, 10:49 AM   #2
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looks similiar to one of the packs that a guy at my local track had. His shorted out on the keys in his jacket pocket. half a second after he got the pack out of his pocket, it blew up!
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Old 04-25-2005, 10:59 AM   #3
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what the hell happened, a lot of of battery explosions recently... 2-3 weeks ago i also shortened two gp3300 packs and 5 cells went to heaven

Last edited by Exe; 04-25-2005 at 11:06 AM.
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Old 04-25-2005, 11:03 AM   #4
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isnt 10mv peak rather high ??
i set my orion advantage and pitbull at .03 for gp 3300's
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Old 04-25-2005, 11:05 AM   #5
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oops, doublepost
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Old 04-25-2005, 11:43 AM   #6
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Default Re: GP's explosion

Quote:
Originally posted by JohnD
NEVER CHARGE OVER 6 AMP.

was taken from power push web site.
Thanks, Tony.
Pft, all of them were sensible but 6amp, can easily give them a bit more juice. I think its just silly peaks detects and charge false peak lockouts and charged packs that is causing people to blow them up.
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Old 04-25-2005, 03:19 PM   #7
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STAY AWAY FROM FALSE PEAK LOCKOUTS!

I used to get some scary cell temps from the Pro-Trak using the lockout - just too easy to forget to discharge. Peak detection is there for a reason after all...

Anyway, people have always been blowing up cells, it's been happening long before IB and GP got into the RC market - I managed to short circuit a pack of 1/18th batteries last year which was quite spectacular - good thing I had an open window with a concrete path below it nearby. And there are people at my club who seem to blow up packs a couple of times a year... but then again, if you let all the shrink get split off your cells, you kind of deserve it...
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Old 04-25-2005, 03:25 PM   #8
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i have charged packs at more then 6 amps (12amps before)
and they didnt blow up, just peaked faster, and got warm fast! but once got to 130f there were peaked

Fast in stock!
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Old 04-25-2005, 04:47 PM   #9
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I always charge 4amps for mod, 5amps for stock.
The lower the charging amps the longer your pack should last.
My 2years old GP still used in race.
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Old 04-25-2005, 09:23 PM   #10
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Is there any sign before the cells boom ??
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Old 04-26-2005, 04:24 AM   #11
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IF you're listening carefully, you'll hear a "Ka" sound right before.
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Old 04-26-2005, 04:27 AM   #12
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Old 04-26-2005, 10:39 AM   #13
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Will there any smoke, flame or any other sign that is more obvious than a small "KA" sound ??
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Old 04-26-2005, 12:59 PM   #14
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A spark, as its shorting out on something.

you hear the "Ka" followed shortly by "Fluggin Boom!"

You might hear a sizzling sound before hand, as the cell is trying to vent. But its proabaly a clogged vent that causes the cells to burst.

Strange that more than one cells is going up at once. Must be very overcharged....
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Old 04-26-2005, 01:10 PM   #15
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Quote:
Originally posted by Exe
what the hell happened, a lot of of battery explosions recently... 2-3 weeks ago i also shortened two gp3300 packs and 5 cells went to heaven
I carelessly put a brand new handphone on top of batttery packs and it went to heaven too
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