[NSRCA-discussion] FW: ESVs for flight pack lipos?

[James Oddino]

Cheap digital voltmeter with a 10 ohm 10 Watt resistor across the input.

Jim O


On Aug 28, 2008, at 11:35 AM, Richard Strickland wrote:

>
> I'm switching some of my stuff to 2 cell lipos into a regulator  
> (learned the hard way that you separate the regulator on the OTHER  
> side of the switch from the battery--but that's another story).
> The question(s): What is a good, relatively small ESV that has a  
> load to check the lipos? What voltage do you let them get down to  
> before no go?
> My 30 year old SO (Ye Olde ESV) ranges just miss that middle ground.  
> I've got a voltmeter--but it's not loaded.  On a 1200 pack(still  
> lighter than 4 nicads WITH reg.) on four flights, the drop was from  
> 8.4 down to 8.25V.  I'm going to a 780 on another airplane and my  
> understanding guys are getting up to 7-8 flights on that size pack.   
> But how do you check them?
>
> Thanks,
>
> Richard
>
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