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4.8v or 6v?

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Old 03-28-2008, 09:45 PM
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Sempiterna
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Default 4.8v or 6v?

Can I use a 6v battery pack in my plane? I have a 5 cell, 6v battery but what I got with my radio package is a 4.8v 4 cell battery.
Old 03-28-2008, 10:23 PM
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DavidAgar
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Default RE: 4.8v or 6v?

It depends on if your servos are rated for 6 volt. Most of them are, however there are a few that are not. You might want to check the specs for your radio as well. Good Luck, Dave
Old 03-28-2008, 11:06 PM
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Sempiterna
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Default RE: 4.8v or 6v?

Interesting!!

6.0v batteries give a faster response time and more torque.. Makes sense, but I didnt realize that.
Old 03-29-2008, 02:33 AM
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Dorsal
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Default RE: 4.8v or 6v?

Remember to do the math! E=IR or I=E/R
By increasing the voltage by 50%, you also increase the Amperage by 50% if you use the same servos and receiver. So a 4.8V 600mAh battery will be equivalent to a 6.0V 900mAh battery (in duration) because the increased amperage will drain more from your battery. And yes, nearly every servo made will work faster and stronger on 6 volts.
Old 03-29-2008, 06:57 AM
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BarracudaHockey
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Default RE: 4.8v or 6v?

Ohms law assumes a constant load. Since servo load isn't constant that really doesn't cover our situation.

In practice you will find that with two identical capacity packs the 4 cell pack will last between 5 and 7 percent longer than a 5 cell pack given the same load. Also most 5 cell packs are made from higher capacity cells to start with.
Old 03-30-2008, 07:25 AM
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GRANT ED
 
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Default RE: 4.8v or 6v?

Once again not all servo's are rated for 6V. Check before use.
Old 03-30-2008, 08:11 AM
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Sempiterna
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Default RE: 4.8v or 6v?

I checked and my servo's are definitely rated for 6v.

The 4 cell pack is 600ma, the 5 cell is 2000ma.. The 5 cell is LiON also.. The 5 cell should in theory last much longer even at 6v, no?

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