[NSRCA-discussion] Electrics

[Nat Penton]

Oops, hit the wrong button. I am rigged up now where I can parallel the van system. Not sure if and where it will be advantageous to do so.                      Nat
  ----- Original Message ----- 
  From: Richard Strickland 
  To: 'NSRCA Mailing List' 
  Sent: Friday, April 14, 2006 3:00 PM
  Subject: Re: [NSRCA-discussion] Electrics


  After the first couple cycles, I was only getting 2.5-3 charges on Interstate's largest deep-discharge units.  We did the math and that was about right.  They have 'Economy' batteries that are units that have been turned back in, a little old, etc that they sell for very little.  I got a basically new one to add to the old and get enough charges for what I need.  Thought about a Honda generator-but with the new chargers-you have to go up a notch or two for charging capacity.  It's always something.

   

  I finally got off my butt to fix the Impact the tunnel-vision-challenged guy ran into on the runway last year and screwed up the right wing and fuse.  Looks like it gained about 3.5 oz. total. It was a smidge over 11 lbs with the 3200s b/4 the crash-what a disappointment--and now it's just going to be.. well, not my number 1 for sure.  I thought about asking him about insurance, but since the thing was going to be way over with better batteries, I just chalked it up.

   

  RS 

   

  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Nat Penton
  Sent: Friday, April 14, 2006 2:09 PM
  To: NSRCA Mailing List
  Subject: [NSRCA-discussion] Electrics

   

  The only battery giving me a problem is the lead acid Marine 'deep discharge'  battery used for field charging of the lipos. It has lost about 70% of it's capacity in seven months.

   

  It provided six 12min flts when new and was purchased from Academy Surplus for $40. It has provided a total of maybe 80 flights ( 30 cycles ??? ). The problem is likely due to my maintenance ( lack thereof ). I left the battery in a partial discharge state sometmes for weeks. You can find maintenance needs on Google at agmbatteries, courtesy Earl Haury.

   

  West Mountain sells a gell cell, 54#, 84ah, rated for 500 cycles @ 100% discharge ( 20hr discharge rate ), $149 del. I will see how it performs under our conditions.

                                                        Nat



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