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Battery ?

Old 03-22-2008, 01:43 PM
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yeffy99
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Default Battery ?

Why are rechargeable AA batteries only 1.2 volt and standard non rechargeable batteries 1.5 volt?

Thanks
Old 03-23-2008, 04:48 PM
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trarena
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Default RE: Battery ?


ORIGINAL: yeffy99

Why are rechargeable AA batteries only 1.2 volt and standard non rechargeable batteries 1.5 volt?

Thanks
1. You will find the actual output on a "1.5V" battery is 1.2V
2. A 5 battery rechargeable 'hump back' will output 6.0V (1.2V x 5) which is safe and effective voltage for your servos
Old 03-24-2008, 06:46 PM
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joey79
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Default RE: Battery ?

different chemistry = different voltage.

A fully charged nimh cell is really closer to 1.4v
Old 03-24-2008, 08:44 PM
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chrobar
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Default RE: Battery ?

Yeah, that's why your transmitter can actually get 12 volts with a 8 cell pack.
Old 03-24-2008, 10:42 PM
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UG0TB4NN3D
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Default RE: Battery ?

Yeah, Alkalines give a little over 1.5v when fully charged, and NiMh only give about 1.2 to 1.3v, so you'd need 5 of them to compete with a 4-cell Alkaline pack.
Old 03-25-2008, 12:30 AM
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Evader ---> MGT
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Default RE: Battery ?

The thing about that theory UGOTBANNED is that a 4-cell Alkaline pack DOES NOT put out as much power as a Nimh 5-cell pack.

I don't think Alkalines put out a full 1.5v when you use them, maybe when, like you said, fully charged.

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