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BrianG · 09.22.2009, 05:09 PM

A little update on this topic:

Still no response from Eagletree systems (and I checked my spam box). So, I guess they simply don't want to answer or they never got it.

Anyway, I recently took other Eagletree graphs of different vehicles and have logged currents as high as 168A on the same unit. So now I'm not sure what happened on the original test. The only two explanations are 1) the lipo cell resistance increases dramatically above a certain current (unlikely because cell resistance simply doesn't change that quickly), or 2) battery voltage tends to react a little slower than current spikes, so maybe the majority of the current spike happened in between samples, while the battery voltage dip averaged out due to it's slightly slower response.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	09.22.2009, 05:09 PM A little update on this topic: Still no response from Eagletree systems (and I checked my spam box). So, I guess they simply don't want to answer or they never got it. Anyway, I recently took other Eagletree graphs of different vehicles and have logged currents as high as 168A on the same unit. So now I'm not sure what happened on the original test. The only two explanations are 1) the lipo cell resistance increases dramatically above a certain current (unlikely because cell resistance simply doesn't change that quickly), or 2) battery voltage tends to react a little slower than current spikes, so maybe the majority of the current spike happened in between samples, while the battery voltage dip averaged out due to it's slightly slower response.