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Old 04-12-2012
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LongRat LongRat is offline
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Join Date: Aug 2011
Location: Bristol, UK
Posts: 240
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Mark, we do disagree, I have stated my opinions so we can leave it at that. This is something we do agree on!

My workings come from this:
1S and 2S cars lap a track at a similar pace. They therefore are producing similar power levels. 1S car does so at half the supply voltage, so must draw about twice the current to achieve this. Resistive losses scale as the square of the current, this is where the extra heat comes from. Your 45A speedo will not restrict the current flow to 45A. It might just overheat if the continuous draw exceeds this value though. Instantaneous spikes of somewhat over 100A are very likely. Modern cells can take this, but of course the 1S system NEEDS to be heavily loaded up (geared) to get any performance out of it so it isn't doing the battery any favours. In an era where people are so conscious of battery safety, this appears to be a strange move.

I use Loong-Max 2300 2S batteries in a solid machined case that I manufacture and sell. Prior to GT12 I raced touring, before that I raced GT10 (as a 2 cell). I also race off road 2wd occasionally and have 1/10 SC truck and several nitros. I have been involved in RC for 15 years and been manufacturing components for 5 years. I had one of the first brushless drive systems for RC cars in the UK in January 2000.
I am indeed strongly anti 1S. That's my history, cheers.

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