Cellpro charging problems?
10-25-2006, 09:26 AM
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Cellpro charging problems?
Yesterday I purchased an FMA cellpro 4s charger, the TP charge adapter, and a thunder power 910mah 3s pack for my blade cp.
The charger seems to be behaving strangely. for the first charge when I set it at 1c it would charge at 1.1A. During that charge cycle if I set the rate to 1.4c, the charge rate dropped down to .5A .
Today I charged the pack again. I started out at 1C default rate, and it was charging at .5A I let it go for 5 minutes or so and checked on it, and the charge rate was up to 2.5A!
Re-setting the charge rate manually to 1.4c dropped the amperage back to .5A
Is this normal?
While set at "1c" the current varied from .5c to nearly 3c
Shouldn't the current be constant throughout the charge cycle?
The pack never seemed to get warm from the high charge rate.
Thanks,
-Anthony
The charger seems to be behaving strangely. for the first charge when I set it at 1c it would charge at 1.1A. During that charge cycle if I set the rate to 1.4c, the charge rate dropped down to .5A .
Today I charged the pack again. I started out at 1C default rate, and it was charging at .5A I let it go for 5 minutes or so and checked on it, and the charge rate was up to 2.5A!
Re-setting the charge rate manually to 1.4c dropped the amperage back to .5A
Is this normal?
While set at "1c" the current varied from .5c to nearly 3c
Shouldn't the current be constant throughout the charge cycle?
The pack never seemed to get warm from the high charge rate.
Thanks,
-Anthony
10-25-2006, 09:35 AM
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RE: Cellpro charging problems?
ORIGINAL: aconsola
Yesterday I purchased an FMA cellpro 4s charger, the TP charge adapter, and a thunder power 910mah 3s pack for my blade cp.
The charger seems to be behaving strangely. for the first charge when I set it at 1c it would charge at 1.1A. During that charge cycle if I set the rate to 1.4c, the charge rate dropped down to .5A .
Today I charged the pack again. I started out at 1C default rate, and it was charging at .5A I let it go for 5 minutes or so and checked on it, and the charge rate was up to 2.5A!
Re-setting the charge rate manually to 1.4c dropped the amperage back to .5A
Is this normal?
While set at "1c" the current varied from .5c to nearly 3c
Shouldn't the current be constant throughout the charge cycle?
The pack never seemed to get warm from the high charge rate.
Thanks,
-Anthony
Yesterday I purchased an FMA cellpro 4s charger, the TP charge adapter, and a thunder power 910mah 3s pack for my blade cp.
The charger seems to be behaving strangely. for the first charge when I set it at 1c it would charge at 1.1A. During that charge cycle if I set the rate to 1.4c, the charge rate dropped down to .5A .
Today I charged the pack again. I started out at 1C default rate, and it was charging at .5A I let it go for 5 minutes or so and checked on it, and the charge rate was up to 2.5A!
Re-setting the charge rate manually to 1.4c dropped the amperage back to .5A
Is this normal?
While set at "1c" the current varied from .5c to nearly 3c
Shouldn't the current be constant throughout the charge cycle?
The pack never seemed to get warm from the high charge rate.
Thanks,
-Anthony
10-25-2006, 10:54 AM
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RE: Cellpro charging problems?
Thanks for the quick reply. I found the same info buried in another thread while researching it myself. It really shouldn't be called 1c and 1.4c if it is a variable charge mode, those labels indicate a specific rate, not a variable one. This feature should be explained more clearly in the manual, and perhaps with future firmware the 1c/1.4c labels changed to something more appropriate like lo/hi or mode 1/2 .
Other than that It is a great little charger!
Thanks again,
-Anthony
Other than that It is a great little charger!
Thanks again,
-Anthony
10-30-2006, 05:05 AM
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RE: Cellpro charging problems?
Not sure which version of the charger you are using, but I just checked my CellPro v.1.07 and I don't see any reference in the menu that suggested rating in "C" rating. I believe all charge rating were set using "A" (amp).
~asm
~asm
10-30-2006, 09:51 AM
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RE: Cellpro charging problems?
Those are really the correct designations, the 1C or 1.4C rate is the average, the charge rate is dynamic and based on the cells ability to accept a charge, even the specific charge rates with the Cellpro will react to a problem with the cells, or if you goofed and set 3A rate for a 300Mah pack[X(], it would hold the charge rate down to an acceptable level for the pack
good thing since we humans are prone to brain farts
Pete
good thing since we humans are prone to brain fartsPete
