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discussion about (C) rating between different manufastures

discussion about (C) rating between different manufastures

 
Old 05-17-2011, 05:41 PM
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ok im trying to buy packs. is there any way to tell what the C ratings actually are between different companys?hyperion/TP/ maxamps etc. maxamps have one and others have 2 ratings?
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Old 05-17-2011, 08:41 PM
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As far as I know, Maxamps only uses "burst" rating. Most other companies that show two numbers are for "burst" and "constant".


BTW, what ever happened to Jason? Haven't seen him post in a long time.
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Old 06-18-2011, 04:41 AM
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Originally Posted by auto2 View Post
ok im trying to buy packs. is there any way to tell what the C ratings actually are between different companys?hyperion/TP/ maxamps etc. maxamps have one and others have 2 ratings?
Yes, there "150C" is a burst rating. Most/ALL other packs Ive seen state there cont. C rating and burst current rating. From what Ive read people tested MaxAmps 150A and they where 30c/40c packs. Aslong as its over 4000mAh 30c is plenty for most applications.
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Old 06-19-2011, 05:02 AM
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Constant "C" rating is also a grey area. It is usually defined by the packs ability to deliver 80% of rated capacity and nominal voltage (7.2 for a 2c) at the "C" rated load (30c x 4000mah=120 amps). The grey area is that the numbers above are not standardized so if a company decides that their "C" rating is the battery being able to deliver only 50% of rated capacity then 50c becomes attainable. As you can see by that last c rating equation batteries in the 50-60c range become somewhat difficult to believe.

A burst rating of 150c would be 600amps which no component in RC could draw or withstand. I don't even know how a connection that wouldn't spot weld itself could be made to the battery.
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