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Old 06-30-2010 | 06:16 AM
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Default 6v receiver pack voltage

When a 6v battery is fully charged what would the voltage normally read at?

What would the voltage read at to the point to where the battery will no longer operate the servos?

I'd like to know,

hulio
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Old 06-30-2010 | 06:45 AM
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Default RE: 6v receiver pack voltage

I found this using a quick search using Google.

A fully charged NiMh cell measures 1.4–1.45 V (unloaded), and supplies a nominal average 1.25 V/cell during discharge, down to about 1.0–1.1 V/cell (further discharge may cause permanent damage, and the risk is increased with multi-cell packs). This is typical and may vary with application and current draw levels.
I did the research, you do the math.

CGr
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Old 06-30-2010 | 07:09 AM
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Default RE: 6v receiver pack voltage

I think that my 6V NiMh packs usually top out around 7.15V on my peak charger.
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Old 06-30-2010 | 08:43 AM
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Default RE: 6v receiver pack voltage

The top end voltage on a fully charged pack would be about 7.2 volts, without a load on it. As for how low it will go and still operate servos, that would depend on what kind of servos that you are using and how many. If you are using a 2.4, they have a point on the low end of the battery voltage that will cause them to rebind. The servos might still work, but the receiver does not. Good Luck, Dave
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Old 06-30-2010 | 09:24 AM
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Default RE: 6v receiver pack voltage

7.2 would be the nominal voltage for a 5 cell pack. A NiCad is considered discharged at 1.1v, but will still operate the servos and RX for a while.
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Old 06-30-2010 | 10:39 AM
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Default RE: 6v receiver pack voltage


ORIGINAL: Dr1Driver

7.2 would be the nominal voltage for a 5 cell pack. A NiCad is considered discharged at 1.1v, but will still operate the servos and RX for a while.
I could aways be incorrect, but I believe that for a 5 cell pack, you'd find that nominal voltage is 1.2 per cell or 6 volts not 7.2.
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Old 06-30-2010 | 10:41 AM
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Default RE: 6v receiver pack voltage

The rated volts will be 6.0, but the fully charged pack will read 7.2. Possibly my use of the word "nominal" was incorrect.
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Old 06-30-2010 | 10:51 AM
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Default RE: 6v receiver pack voltage

Oddly enough, as I stated earlier, 1.4 to 1.45 volts per cell = pretty much at 7.2 volts for a 5 cell pack.
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Old 06-30-2010 | 02:37 PM
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Default RE: 6v receiver pack voltage

1.5V max per cell x 5 = 7.5V<div>
</div><div>i get around 7.6V on my packs</div>
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Old 06-30-2010 | 02:47 PM
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Default RE: 6v receiver pack voltage

Mine typically read 1.4 to 1.45 V. per cell, right off the charger...just a wee bit warm...then after sitting for a few hours are around 1.35 (pack returned to ambient temp )

Just before the pack peaks though, the V. can read 7.5 maybe 7.6 but that drops immediately after the charger is shut off.
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Old 06-30-2010 | 05:31 PM
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Default RE: 6v receiver pack voltage


ORIGINAL: hulio516

When a 6v battery is fully charged what would the voltage normally read at?

What would the voltage read at to the point to where the battery will no longer operate the servos?

I'd like to know,

hulio
Be careful of using NiMh battery voltage to judge how much charge is left IE use a voltage indicator to decide if you can have another flight. NiMh cells hold their voltage right up to the last few mah then it is like falling of a cliff.

Something to be aware of.
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