Battery 6ah vs. more

On Apr 21, 10:18*am, wrote:
On Apr 21, 6:55*am, "Roy Clark, \"B6\"" wrote:





On Apr 20, 7:56*am, "Kevin *Anderson"
wrote:

I have been using the Power Sonic Fast Discharge rate battery PSH-12100F2,
10.5 amp hr, in the same size case as their 7 ah for the past 3 years.

It has held up quite well, and even have a couple of 10 hour wave flights on
just one battery (I am set up with two) *running a PDA, Vario, Radio..

Kevin
SGS 1-26B 192

Thanks, but fly with 2 systems - one for transponder only - and the
battery you
suggest won't fit.

Anyone elss have a suggestion.

Roy,
* To have a valid suggestion, people need to know what equipment
you're running and the total current draw (on each batter circuit if
two systems).
* I have a 10Ah battery (single) powering nothing but a radio and
vario. *Flew 6 days at Tonopah (avg flight 4 hours) and two more
weekends before my volt meter finally said I was in need of a
recharge.
* I have since added a Cambridge 302A CFR and an iPAQ, and should
still be good for 15 hours of system 'on' time.
* Bottom line, if the 6 Ah battery was sufficient, why change?- Hide quoted text -

- Show quoted text -

The longer you allow your lead-acid battery to sit at less than full
charge, the shorter it's life will be. Combine that with deep
discharges, and it gets worse. Of course the convenience factor of not
charging for every flight might be worth the cost of replacing more
often. The downside is premature failure when you least expect it.

I alternate two batteries by pulling the one I flew with at the end of
the day and replacing it with a fully charged one that I brought from
home. That way if I don't fly again for a while, the battery in the
ship is fully charged and should last quite a while without worry of
sulfating. This system allows me to always have two charged batteries
on hand at the start of every flying day. It spreads the discharge/
charge cycles over two batteries instead of one and limits deep
discharges as much as possible. If I forget to bring the second
battery along to the field, the one in the ship is charged and ready
for that day anyway.


Dave