KOKAM 740 20C HDR
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KOKAM 740 HDR |
| 740mah |
| Lipo |
| 3,7v |
| 21g/cell |
| Max recomended current 15A cont 20A burst |
| Max charge temp: 45celsius degrees |
| Max discharge temp: 60celsius degrees |
| size: 33,5x59x5,4mm |
| Recomended charge current max: 1C |
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| Battery: | 3S KOKAM 740 HDR |
| Plane: | Shockflyer |
| Setup: | 12,5A, /11v |
| Motor/prop: | Kontronik Dancer mini 9x3,8" |
| Flight time: | 650sec |
| Outside temp: | 24 c |
| Motor temp winding: | 27 c |
| Battery temp after 3D flight: | 26 c |
| Belastningsdata 3s Kokam 740 ute temp 26 grader | ||
| Ström i Amp | Spänning i Volt | Temperatur i grader C |
| 5A | 11,7v | 26c |
| 10A | 10,9v | 29c |
| 12A | 10,69v | 31c |
| 15A | 10,1v | 35c |
| 17A | 9,89v | 36c |
| 19A | 9,05v | 40c |
15c 11A discharge, 3s |
To the left you can see graps of
11A continuos (15c) discharge of the 3s Kokam 740. Also temprature
data was registered during the test, result can be found below,
total discharge capacity was 649mAh.
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20c discharge, 14,8A 3s |
To the left you can see graps of
14,8A continuos (20c) discharge of the 3s Kokam 740. Also temprature
data was registered during the test, result can be found below,
total discharge capacity was 634mAh.
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Very good 15c cells, for burs power 20A amp withaout getting lower than 3c/cell and to much heat, great poewersuply for motors like the Kontronik Mini Dancer or the Causemann 280-05, as most of the 20c low resistent cells these needs to get some temp araound 30c before they perform at its max, holding high Voltage during load.
Text: Joacim Göransson 2005/2006