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How do you check flight batteries?

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Old 10-24-2004 | 12:25 AM
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From: Cross Plains, WI
Default How do you check flight batteries?

Quick question....

I have a volt meter and can someone explain how to check the battery voltage both under load and with out load?
What values should you look for?

Thanks much,
Ryan
Old 10-24-2004 | 12:49 AM
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Default RE: How do you check flight batteries?

I charge my batteries when my loaded meter reads 4.6.. and if I
remember correctly 5.4v with an unloaded meter.. At least that's how
I do it...
Old 10-24-2004 | 01:55 AM
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Default RE: How do you check flight batteries?

Hello

I was worried that one day I would get over excited and fly until my Batteries ran dead...

And so not wanting to practise my death rolls I installed a Quick UK On Board Battery Monitor...



You can tell the voltage by looking at which LED lights up...

The unit plugs into a spare receiver port... So at a glance you always know where you are...

If you turn your Volt Meter three clicks to the left... It should read Volts - 20, and then put the probs into a spare slot on you receiver, this should also give you the current read out...

But the battery monitor works a treat and looks great...

Hope this helps...

Cheers

Matt
Old 10-24-2004 | 02:05 AM
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Default RE: How do you check flight batteries?

Forgot to mention...

[link=http://www.quickuk.co.uk/acatalog/r_index.htm]Quick UK[/link]

Look under General Parts / Radio Systems...

Matt
Old 10-24-2004 | 01:03 PM
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Default RE: How do you check flight batteries?

You need a load on the batteries to get a true reading of the voltage available. Without the load you will get a false reading that is actually more than you actually have. A cheap expanded scale voltmeter is available at hobbie shops. Best insurance there is. The scale will tell you when it is time to recharge.

Mark Shuman
Old 10-24-2004 | 02:10 PM
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From: MS
Default RE: How do you check flight batteries?

There is a construction article on my web page about a simple, inexpensive loaded test unit done by battery guru Clifford "Red" Scholefield. It has instructions on how to build the unit and how to use it.
Old 10-24-2004 | 03:33 PM
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From: Deep River, ON, CANADA
Default RE: How do you check flight batteries?

Use an expanded scale volt meter -- don't leave home without one -- they're cheap & effective.

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