HiTec receiver battery issues  
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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> HiTec receiver battery issues
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HiTec receiver battery issues - 6/19/2003 9:35:52 PM   
3D Flyer



Posts: 306
Joined: 5/5/2003
From: Walkersville, MD, USA
Status: offline 		Hi Mike,

Need your advise. I bought my HiTec Flash 4 about 3 months ago and I have had repeated issues with my receiver battery pack. At first I was getting good life from the pack (many flights before recharge). Then I noticed it dropping voltage to quickly so I cycled the pack on my Hobbico AccuCycle Plus system, 3 times, on the slow rate charge/discharge setting. Then the battery pack seemed fine again for a while. Now, it seems like I can get only one or two flights before needing recharged again. Is there something wrong with the pack? Everyone at the field says they would not fly with a battery pack that only lasted one flight. I tend to agree, especially when I have seen it go 6-7 flights before needing a charge. We are talking 3-4 weeks in between cycling and only about 20-25 flights later. The guys seem to think that it should not need cycling that often. They ussually cycle theirs 2 times per year. Do you feel this is a defective pack? Should I send it in?

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Huck it!
       Post #: 1

HiTec receiver battery issues - 6/22/2003 7:32:26 AM   
SDR-Hammer


 

Posts: 660
Joined: 9/9/2002
From: , MI,
Status: offline 		In the mean time until Mike gets back may want to post this quesiton over on the battery forum for the gurus over their.

(in reply to 3D Flyer)
       Post #: 2

HiTec receiver battery issues - 6/25/2003 11:07:18 PM   
3D Flyer



Posts: 306
Joined: 5/5/2003
From: Walkersville, MD, USA
Status: offline 		Hey Mike, any thoughts on this battery issue?

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Huck it!

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HiTec receiver battery issues - 6/27/2003 11:27:47 PM   
MikeMayberry



Posts: 2879
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		It may be a bad cell. If you send it in we can check it out.

Mike.

(in reply to 3D Flyer)
       Post #: 4

battery issue again - 7/8/2003 9:54:26 PM   
3D Flyer



Posts: 306
Joined: 5/5/2003
From: Walkersville, MD, USA
Status: offline 		Mike,

I keep getting just 1 or 2 flights on my pack and then its at about 4.8 volts under 250 maH load. My Hobbico Accuclyle shows 600 maH after 2 cycles though ... do you think the pack is bad? When I first got it it showed about 620 maH of capacity, now its at 600 maH. This is what its rated for.
I am confused. What voltage is safe to fly?

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Huck it!

(in reply to 3D Flyer)
       Post #: 5

HiTec receiver battery issues - 7/8/2003 11:14:20 PM   
MikeMayberry



Posts: 2879
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		If it cycles at 600mah then the pack is good. At 4.8V you still have plenty of juice left. The battery will not full die until about 4V.

Mike.

(in reply to 3D Flyer)
       Post #: 6

thanks - 7/8/2003 11:17:39 PM   
3D Flyer



Posts: 306
Joined: 5/5/2003
From: Walkersville, MD, USA
Status: offline 		what would you say is a safe flying voltage?

anything above 4.6v? I know the knee of the nicd curve is real steep.

_____________________________

Huck it!

(in reply to 3D Flyer)
       Post #: 7

HiTec receiver battery issues - 7/8/2003 11:23:59 PM   
MikeMayberry



Posts: 2879
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		That would be on the safe side. You could go slightly lower, especially if you are measuring it with a 250mah load.

Mike.

(in reply to 3D Flyer)
       Post #: 8

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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> HiTec receiver battery issues
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