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4/10/2020 12:27 PM
 
Mike D.
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Joined: 1/15/2010
Posts: 1213

FWIW, I charged my 740 up two days or so ago.  When I turned it on today, the OS battery icon showed it stll had 75% charge.  When iFly opened the battery icon there showed 2/3 charged.  I exited the program, leaving it running in the background, and the OS battery icon now showed 50%. 
 
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4/13/2020 9:58 AM
 
Brolin McKay
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Joined: 10/6/2019
Posts: 772
N1431A wrote:

This is interesting. I've had my 740 for a while and never was aware it had an internal battery. It has never seemed to charge up. 

Do I need to leave it plugged into 12 volts while turned off to charge?. It normally remains in the plane with power off. I do turn off the 740 manually before I kill the master.

Paul

Salome, AZ

It sounds like you might have your battery switch turned off on the back
 
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4/14/2020 9:44 AM
 
Alasdair
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Posts: 411

I think we are still talking about the 740b.  Eh, switch on back?  Not on mine.
 
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4/14/2020 10:17 AM
 
Robert Laird
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Joined: 9/26/2017
Posts: 61

It's on the bottom of the 740b, behind a thin panel... on the left. 

 

----------------- AutoGyro Cavalon N535RL ||| uAvionix echoUAT w/ SkyFX-Ext ||| iFly 740b / iPad / Android ||| http://www.texas-flyer.com
 
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4/14/2020 2:28 PM
 
Brolin McKay
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Joined: 10/6/2019
Posts: 772
Alasdair wrote:

I think we are still talking about the 740b.  Eh, switch on back?  Not on mine.

it's def on yours... flip it over, look at the bottom left hand corner. You'll see BATT (ON/OFF)
on the bottom part of the bezel you'll see a tiny white switch that's the batt switch. 
 
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