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Servos voltage

Old 03-13-2015, 08:04 AM
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egrave1
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Default Servos voltage

I have Futaba servos 3003 and 3004 will they handel 7.6 volts
Old 03-13-2015, 08:25 AM
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raptureboy
 
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6 volts max you will need a voltage regulator
Old 03-13-2015, 03:22 PM
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tacx
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I have many 3003 and 3004 servos in several planes running 2cell life packs. Full charged voltage is 7.2. Never had a, problem.
Old 03-14-2015, 05:55 AM
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No. A full charge may be over 7V but the full charge on a 7V system will be 8 or greater. Use a voltage regulator. Burn up a servo in flight you loose an airplane
Old 03-14-2015, 10:14 AM
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As I said above. A fully charged 2 cell LIFE pack is 7.2 volts only. Voltage drops a bit when taken off the charger.

If your getting more than 7.2 volts on a 2 cell LIFE pack you are over charging.
Old 03-14-2015, 07:03 PM
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I run LiIons they're 8.4 off the charger. He didn't say what pack he's using. Not arguing just pointing things out
Old 03-15-2015, 04:23 AM
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Jetmech05,

No problem.
Old 03-15-2015, 04:24 AM
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Jetmech05,

No problem.
Old 03-15-2015, 04:37 AM
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egrave1
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I have two Lipo battery's that puts out 7.6v
Old 03-15-2015, 05:25 AM
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Originally Posted by egrave1
I have two Lipo battery's that puts out 7.6v
A 2-cell LiPo battery has a fully charged voltage of 8.4 volts and the voltage does not quickly drop down under load but rather slowly .as it reaches discharge state Connecting 8.4 volts to a standard servo will result in burning up the servo in a short period of time. As already stated, you will need to use a voltage regulator to drop the voltage of a 2-cell LiPo pack to 6 volts.
Also for those interested, a 2-cell LiFe pack produces 7.2 volts fully charged but quickly drops under load to around 6.4 volts and remains there until it gets close to discharge then the voltage quickly drops down/falls off. Most servos and receivers and some ignitions can use a LiFe pack with no regulator.
Old 03-15-2015, 05:30 AM
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egrave1
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Thanks for the info
Old 03-15-2015, 07:06 AM
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Rodney
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Originally Posted by egrave1
I have two Lipo battery's that puts out 7.6v
You have either not fully charged them or you have a defective meter. Any 2 cell LiPo will be 8.4 volts +-.01 volts when fully charged and no load. Are you sure these are not LiFe?
Old 03-15-2015, 07:12 AM
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flycatch
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Ask the manufacture they produce the product.
Old 03-15-2015, 02:00 PM
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All Day Dan
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flycatch, since when does logic prevail on RCU?. Dan.
Old 03-15-2015, 02:04 PM
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flycatch
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Thanks for promoting logic however that was lost when our hobby was taken over by the toy industry.
Originally Posted by All Day Dan
flycatch, since when does logic prevail on RCU?. Dan.

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