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Old 01-15-2010 | 06:33 PM
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Default charging rate

Hi - I have a 30C lipo battery - how fast can I charge it? how many amps i mean?

Old 01-15-2010 | 07:08 PM
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Default RE: charging rate

What is the capacity of the battery?? How many milliamps??

Ken
Old 01-15-2010 | 07:50 PM
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Default RE: charging rate

In order to determine how fast to charge the battery, you need to know it's capacity (in milliamps or amps), and also it maximum charge rate in "C". The 30C you listed is most likely it's discharge rate, since as far as I know, no batteries can be charged at 30C.

Essentially, you multiply the charge C rate by the capacity of the battery.

Example: Let's say I have a 1500 mah battery that can be charged at 2C. That means I can charge it at 1.5 amps (i.e. 1500 mah) x 2C = 3 amps.

I hope my explanation is correct. Anyone who is more knowledgeable, please feel free to correct anything.
Old 01-15-2010 | 09:45 PM
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Default RE: charging rate


ORIGINAL: Spitfire222

In order to determine how fast to charge the battery, you need to know it's capacity (in milliamps or amps), and also it maximum charge rate in ''C''. The 30C you listed is most likely it's discharge rate, since as far as I know, no batteries can be charged at 30C.

Essentially, you multiply the charge C rate by the capacity of the battery.

Example: Let's say I have a 1500 mah battery that can be charged at 2C. That means I can charge it at 1.5 amps (i.e. 1500 mah) x 2C = 3 amps.

I hope my explanation is correct. Anyone who is more knowledgeable, please feel free to correct anything.
Your explanation is correct, Spit.
In basic terms, 1000ma = 1 amp, so a 3000ma pack is actually a 3 amp pack. If you wish to charge that 3000ma (3 amp) pack at 1C, that would be 3 amps charge rate-3 amps X 1C = 3 amps. 2C would be 6 amps, etc.
For new packs, I usually never charge above 1C for the first 5 cycles, and never push the pack hard for those same 5 cycles. After that, I usually charge at 2C. Most modern LiPo's are safe at a 2C charge rate. Even though there are some packs that advertise a 5C charge rate, i'll stick to my 2C. I don't need any unneccessary fires [:@].

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