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Back up battery system

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Back up battery system

Old 06-27-2008, 08:09 PM
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Default Back up battery system

Hay Don what do you think about running a dual battery system with on of the devices that will switch to a second battery if you have a problem in flight. I have been doing some reading and it sounds to me like most peopls feel like the most common cause of a crash where you have total shut down is a battery problem . I have never had a problem but the more these things cost it could be cheap insurance.

Any chance you will make Huntsville this year ?

Thanks Kirk
Old 06-28-2008, 09:08 PM
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Default RE: Back up battery system

Dual battery, dual switches, dual regulators all help redundancy. Dual redundancy doubles your chances of single point failure, but makes the overall system four times as reliable. I use a single battery, single switch, single regulator. Risk of these failing is there, but not enough for me to do the redundancy thing. Care with installation and wire management will reduce the probability to something like 1 in 10,000 even with no redunancy. 1 in 10,000 is good odds for me. That said, I am running 4 receivers though. This Rx setup comes stock with the 12X.

Old 01-27-2009, 07:28 PM
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Default RE: Back up battery system

Reading your inquiry led me down memory lane as I prefer redundancy to loosing a $1900 airplane. Here is my set up.

2(ea) 2300 mah A123 batteries to a fromeco wolveriene switch that has 3 output leads. 2 of the leads supply power to a Smartfly power expander that supplies 5 volts to the receiver.

The final output lead from the wolveriene switch goes directly to the ignition without a regulator.

The wolveriene switch has a priority function built in where the battery with the highest voltage supplies the system
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