E-Flight Power Sources Ask questions or read about power sources as they specifically relate to e-flight including Lithium-ion, Li-Poly, Nimh and Nicad battery packs.

What charge rate to use ?

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Old 08-01-2014, 10:16 AM
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aeroflyer
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Default What charge rate to use ?

Hi all. I have flown both glow and gas for years and now getting into electric. My main question is what is the proper charge rate for an E-flite li po 2S 7.4 V 300mAH (2.2wh) 35C(10.5amp) Max continuous discharge battery.

I am using a Team Tenergy TB6B charger.
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Old 08-04-2014, 02:43 AM
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chuckk2
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Are you sure that the lipo is a 2C300mah? That's a small battery!
Anyway, the usual proper 1C charge current would be 300ma or .3A
The "safe" maximum short term discharge current would likely be about 15C or 5 to 6A, not ~10A
(Rule of thumb value, since the maximum C rate spec is for a very short time only,
and generally not trusted.)

Last edited by chuckk2; 08-04-2014 at 02:52 AM.
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Old 08-04-2014, 04:33 AM
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flyinwalenda
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Here is the battery
As mentioned, use the 1C charge rule if there is nothing stated on the battery pack or instructions that show it can handle higher charge rates.
300mah X 1C = 300ma or 0.3amps. Set your charger at 0,3 amps and use the balancing charge setting.
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Old 08-04-2014, 11:02 AM
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Ok thankyou very much.
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