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Old 02-25-2009, 08:33 AM   #1
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Default How to charge my 6500mah 30C Lipo?? Im new to these batteries

I was trying to understand how to charge the Lipo batteries when some guy on you tube confused me about understanding your C rating to set the amps. Now I have a MaxAmps 6500mah 30C battery and a Turnigy Accucel-6 charger. Now I know the charger has automated features so do I even have to set the amps?? Is there anythingI have to set?
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Old 02-25-2009, 08:45 AM   #2
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I was trying to understand how to charge the Lipo batteries when some guy on you tube confused me about understanding your C rating to set the amps. Now I have a MaxAmps 6500mah 30C battery and a Turnigy Accucel-6 charger. Now I know the charger has automated features so do I even have to set the amps?? Is there anythingI have to set?
I don't know about the charger but 1C would be 6.5 amps. The 30C means the battery can handle 195 amps continuous draw (30C X 6.5 amps).
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Old 02-25-2009, 09:22 AM   #3
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So if I had to set the amps or the C rating it would be 6.5Amps or 1C? Correct?
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Old 02-25-2009, 09:35 AM   #4
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You will set the charger at 6.5 amps. if it's "automatic", you will probably have to enter its capacity.

the C rating on the battery is strictly discharge claims and has nothing to do with your charging.
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Old 02-25-2009, 09:39 AM   #5
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So if I had to set the amps or the C rating it would be 6.5Amps or 1C? Correct?
That is correct. You can even double that amount and charge at 2C or 13 amps. Also, when you put your batteries up for storage, ensure that you have the batteries charge at 50%. Keep the batteries at or near room temperature as much as possible, and try not to keep the heat at 140*F MAX! Otherwise you may have an expensive mess on your hands for every five to ten degrees above 140*F.

Before you run your car or even charge your battery, make sure your battery is at least at room temperature before running. After you run your car, let the temperature subside a little before recharging, provided that it is below 100*F.
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Old 02-25-2009, 09:41 AM   #6
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Hopefully this will help.
The 1c, like has been said, is only associated with the charging on your lipo.
Example, I run 3200mah packs, so my charge rate is 3.2 amps
5000mah, 5.0 amps. Yours being 6500mah, you can charge it at 6.5 amps. You can charge at a lower rate, but should not charge at a higher rate.
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Old 02-25-2009, 09:42 AM   #7
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That is correct. You can even double that amount and charge at 2C or 13 amps. Also, when you put your batteries up for storage, ensure that you have the batteries charge at 50%. Keep the batteries at or near room temperature as much as possible, and try not to keep the heat at 140*F MAX! Otherwise you may have an expensive mess on your hands for every five to ten degrees above 140*F.

Before you run your car or even charge your battery, make sure your battery is at least at room temperature before running. After you run your car, let the temperature subside a little before recharging, provided that it is below 100*F.
I can safely charge at 2c or 13 amps?
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Old 02-25-2009, 09:49 AM   #8
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I can safely charge at 2c or 13 amps?
6.5 x 2 = 13.

I charge my SMC 5000 and Trinity IP 5000 packs at 10 amps or 2C all the time. If I charge them at 1C then the charge rate would be 5 amps.
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Old 02-25-2009, 09:53 AM   #9
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Only if your pack is rated for 2c charge. It has no benefits other than faster charging time.

As for storage. This was the general rule posted in the heli forums.


Storage Temperature-----------40% Charge------------------100% Charge

0 C (32 F) ------------2% loss after 1 year-----------6% loss after 1 year
25 C (77 F)-----------4% loss after 1 year-----------20% loss after 1 year
40 C (104 F)----------15% loss after 1 year---------35% loss after 1 year
60 C (140 F)----------25% loss after 1 year---------40% loss after 1 year
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