Today's Message Index:
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1. 03:21 AM - Re: Back-Up Battery (George Helton)
2. 05:37 PM - Battery Back up... (Nick Cassara)
3. 05:40 PM - Battery Back up... (Nick Cassara)
4. 08:17 PM - Re: Battery Back up... (Charlie England)
Message 1
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| Subject: | Re: Back-Up Battery |
Well Nick, I installed a Aerovoltz iron lithium ion battery in my Firestar last
year. The battery is very small and light 1.3 lbs. I use it as my primary battery.
It starts my Hirth 2702 without a problem. The battery is relatively inexpensive,
they come in variety of different sizes. I did also order the special
balancing charger. I highly recommend this system. I bought it from Aircraft
Spruce. They actually had the best price.
George Helton
Firestar, 2702 Hirth
14GDH
Mesick, Michigan
gdhelton@gmail.com
Sent from my iPhone
> On Feb 11, 2019, at 6:44 PM, Nick Cassara <nickc@mtaonline.net> wrote:
>
>
> Kolbers,
>
> I am considering a Battery back up system, and wondering if anyone has experience
with TCW Technologies?
>
> Thanks,
>
> Nick Cassara
> Palmer, Alaska 99645
>
> 607AK
>
>
>
>
Message 2
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| Subject: | Battery Back up... |
Charle and Kolbers,
An A&P from whom I was renting hanger space last year, thought it would be good
to have a back up power source for the fuel injection and ignitionif things when
bad, I could I can flip a switch and change the power source. hopefully giving
me time to land somewhere safe.
Nick Cassara
Palmer, AK
Kolbra 607AK
Message 3
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| Subject: | Battery Back up... |
Charle and Kolbers,
An A&P from whom I was renting hanger space last year, thought it would be good
to have a back up power source for the fuel injection and ignitionif things when
bad, I could I can flip a switch and change the power source. hopefully giving
me time to land somewhere safe.
Nick Cassara
Palmer, AK
Kolbra 607AK
Message 4
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| Subject: | Re: Battery Back up... |
On 2/12/2019 7:35 PM, Nick Cassara wrote:
>
> Charle and Kolbers,
>
> An A&P from whom I was renting hanger space last year, thought it would be good
to have a back up power source for the fuel injection and ignitionif things
when bad, I could I can flip a switch and change the power source. hopefully
giving me time to land somewhere safe.
>
> Nick Cassara
> Palmer, AK
>
> Kolbra 607AK
>
If you're electrically dependent, he's right, at least in theory.
I'm currently working on an electrically dependent engine (Mazda rotary)
in an RV-7, & have friends who have been flying rotaries for years. Most
of the guys I know are flying with a single alternator and single SLA
battery (PC680 or similar), though a few have more elaborate systems
with dual alts and/or dual batteries.
The battery & alternator can be considered redundant power sources,
unless total current requirements to stay in the air severely limit
endurance on the battery (a working alternator has unlimited endurance).
You can create a 'third layer' with a 2nd battery, kept charged through
a Schottky diode, and only connected to your engine bus if you activate
the 'panic' switch. The Schottky will only have about a half volt drop
at most, once the battery is close to topped off, so it will always be
fully charged as long as the alternator voltage is set above 14V. Lots
cheaper than the TCW, and capacity can be whatever you want/need.
If you're interested, we can go further with it.
Charlie
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