[amsat-bb] Re: Batteries for FT 817 - Minigorilla

Graham Shirville g.shirville at btinternet.com
Mon Jun 21 15:20:42 PDT 2010

Hi Tony,

For what it is worth...not internal but very light and stay at a full 12V 
running an FT817 for a long time...


----- Original Message ----- 
From: <G0MRF at aol.com>
To: <tjjapha at earthlink.net>; <amsat-bb at amsat.org>
Sent: Monday, June 21, 2010 6:32 PM
Subject: [amsat-bb] Re: Batteries for FT 817

> In a message dated 21/06/2010 17:27:29 GMT Standard Time,
> tjjapha at earthlink.net writes:
> I use 2  FT817s for portable ops, and have been disappointed in the 
> battery
> performance.  Last year, I bought replacement batteries from Batteries
> America, the FNB-72xe, rated at 9.6v. at 2000mAh.  There's no noticable
> difference between these new batteries and the originals.
> The batteries  charge to just over 11.0 volts, but quickly drop through 10
> volts, as  indicated by the voltage reading that appears when the rigs are
> turned  on.  Maybe this is just normal behavior for a 9.6 v. battery.  Is
> this what you would expect?  Has anyone found a battery with a higher 
> voltage
> rating and/or one that will maintain a higher voltage for an  appreciable
> period--and fits into the 817?  Every bit of power  helps!
> Many tnx and 73,
> Tony, N2UN
> LM  183
> Hi Tony.
> Not sure about fitting in the FT817....But there are a lot of people over
> here participating in "summits on the air" driving / walking /  climbing 
> to
> the top of a peak and making some QSOs. The FT817 is very  popular and 
> they
> all seem to be using 3 series Lithium polymer cells.
> According to the hype, the lithium polymers weigh nothing hold nearly
> infinate charge and finally discharge within a few seconds of the natural
> lifespan of the operators radio.
> Whatever the reality, they may be worth investigating.
> Regards
> David  G0MRF
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