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Old Jun 23, 2013, 08:18 AM
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I have a question for you guys who use a naked GoPro Hero 3 on the Phantom:

What do you use to protect the lens? I bought some sticker type lens protector from mytuffstuff.com but there are hazy parts in the frame. Already used up 2 of the 4 stickers and still have the hazy parts in the frame.
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Old Jun 23, 2013, 08:33 AM
HGT is offline
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Originally Posted by harrywhite View Post
I thought the GPS Sat Count LED was red in GPS mode and orange in ATTI mode?
No flashing red is 7+ satellites. The Green is GPS mode, Amber is ATTI mode.
Old Jun 23, 2013, 08:48 AM
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Originally Posted by natscape View Post
I have a question for you guys who use a naked GoPro Hero 3 on the Phantom:

What do you use to protect the lens? I bought some sticker type lens protector from mytuffstuff.com but there are hazy parts in the frame. Already used up 2 of the 4 stickers and still have the hazy parts in the frame.
I like this one...

http://www.amazon.com/Hero3-Protecti...lens+protector
Old Jun 23, 2013, 09:18 AM
T J Gilbert is online now
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LayerLens


Quote:
Originally Posted by natscape View Post
I have a question for you guys who use a naked GoPro Hero 3 on the Phantom:

What do you use to protect the lens? I bought some sticker type lens protector from mytuffstuff.com but there are hazy parts in the frame. Already used up 2 of the 4 stickers and still have the hazy parts in the frame.
I've used this product on my GoPro HD2.
http://www.fpvmanuals.com/layerlens/
It appears that the GP3 version is currently out of stock...
Old Jun 23, 2013, 09:32 AM
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Originally Posted by flboy286 View Post
Did you ever figure out what the problem was?

Did you upgrade to 3.12?

And did you do a compass calibration?

Knowing what fix your problem may help out someone else down the road.
have been very busy. will get to it in next day or four and report back. stay tuned
Old Jun 23, 2013, 09:35 AM
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Originally Posted by eirlink View Post
Ignore the colours used on the old motors.
Just connect up the three (black) wires on the new motor and spin up without props.
If it spins the wrong way just swap any two of the three black wires around.
Thank you very much. I will do that today and see how things work out.
Old Jun 23, 2013, 09:36 AM
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Originally Posted by floete View Post
have been very busy. will get to it in next day or four and report back. stay tuned
Thanks for letting us know.
Old Jun 23, 2013, 09:56 AM
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I read that you should not store your lipo battery fully charged and that storing them in the refrig will to extend it's life.

So after you're done flying, do you recharge your battery right away or do you wait until the day/night prior to flying?
Old Jun 23, 2013, 10:15 AM
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Lipo Storage


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Originally Posted by flboy286 View Post
I read that you should not store your lipo battery fully charged and that storing them in the refrig will to extend it's life.
So after you're done flying, do you recharge your battery right away or do you wait until the day/night prior to flying?
You'll get different answers from different posters on these questions.
In a perfect world, you don't store lipos fully charged, and you keep them cool.
Not a lot of harm will result if you keep a lipo charged for a week or two before using it.
Some pilots discharge their lipos that have not been used down to a storage voltage when they get home from flying.
They also don't charge their lipos until the night before they plan to fly.
If you have that much extra time, by all means go for it.

I, personally, charge lipos I know I will be using soon (1 or 2 weeks) when I get home from flying or sometime in between visits to the flying field.
If I know I won't be using a lipo for a while, I'll get it to the accepted storage level.

You need to educate yourself, decide how much care you plan to give your lipos, and act accordingly.
Old Jun 23, 2013, 10:29 AM
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Originally Posted by T J Gilbert View Post
You need to educate yourself, decide how much care you plan to give your lipos, and act accordingly.
Yes, the devil is in the details. Here are a couple:

Scroll down a couple of posts on this page -
http://www.multirotorforums.com/show...ipo-protection

I've seen this posted elsewhere. It's a sort of bible for RC batteries:
http://www.rchelicopterfun.com/rc-lipo-batteries.html

Cheers!
Old Jun 23, 2013, 10:32 AM
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Originally Posted by flboy286 View Post
I read that you should not store your lipo battery fully charged and that storing them in the refrig will to extend it's life.

So after you're done flying, do you recharge your battery right away or do you wait until the day/night prior to flying?
Nothing beats measurements:



Summary: cooler is better and less charge is better, within certain limits.

Don't ever let them get below 15% though, they will die.
40% is a nice margin because self discharge will take a while to get to 15%.
So check them once in a while if they are stored for a long time.
Mine are used weekly so I store them at 30%

Since a battery spends most of its life in storage mode I make sure that is optimal.
Old Jun 23, 2013, 10:35 AM
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how do i determine how much (if any) to increase gains after adding a gimbal, or other signifigant weight?
Old Jun 23, 2013, 11:27 AM
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Originally Posted by Tony Landing View Post
Unless it can also go under water, I won't buy it.
LOL. Well the future option is to land on water! I am sure to deliver pizza too!
Old Jun 23, 2013, 11:52 AM
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"You need to educate yourself, decide how much care you plan to give your lipos, and act accordingly."
And that's what I'm doing

Thanks TJ, Gene & Vince for your inputs.

Vince, I came upon a website that had the same chart that you posted. It was an excellent intro to Lipo's.
Old Jun 23, 2013, 11:58 AM
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Vince ~ you stated "40% is a nice margin because self discharge will take a while to get to 15%."

Is this correct? 12.6v x .60 = 7.56V would be the 40% storage voltage? Seems too low, so I ask

If this is incorrect, please share what the 40% voltage is.

Thanks ~ John

EDIT I read this " A 3S LiPo pack therefore would show about 11.2 volts after a flight when it's about 80% discharged"

Is the battery storage percentage between 12.6V(fully charged) - 11.2V =12.04V 40%?

EDIT +1 After some searching, I found that 3.8V per cell is the avg storage voltage. 3.8V x 3 cells = 11.4V

I now see that the % of discharge is related to the working voltage, not the total battery capacity.
Last edited by flboy286; Jun 23, 2013 at 01:08 PM.


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