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Topic: cordless phone battery replacement ? PLEASE CLOSE |
Ron Victoria
From:
New Jersey, USA
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Posted 27 Jul 2009 6:59 am |
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I find the use time getting shorter and want to replace the battery. Can I use a battery with a higher ma rating as long as the voltage matches? I would go from 600 to say 800. I can just swap the plug if the battery is different.
ron
I reposted in electronics
Last edited by Ron Victoria on 28 Jul 2009 6:08 am; edited 1 time in total |
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John Cipriano
From:
San Francisco
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Posted 27 Jul 2009 1:53 pm
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Typically batteries are sold with mAh rather than mA.
mA represents the output current (typically the maximum current, since the current drawn in operation depends on the device).
But mAh is a unit of measure for the capacity of the battery and usually they are sold by this number. 800 mAh is a typical rating for a cordless phone battery.
A very rough estimate would say that the phone would last 33% longer without charging than on a 600 mAh. But what happens in reality is that the voltage drops before the charge is completely used up, so that 33% is not really accurate.
What I'm wondering, and maybe someone else will know this, is if the chemistry of the battery will affect anything long-term. You mentioned replacing the wires so it's possible you're going between NiCD and NiMH or Lithium...that might matter, depending on the device.
Short-term, though, if the voltage is the same and the polarity is correct, I don't see why not. |
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Ron Victoria
From:
New Jersey, USA
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Posted 27 Jul 2009 2:52 pm
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| It is mah. If I buy a different battery it probably won't plug into my phone and I would have to snip off the connector and switch them. Maybe I should repost this under electronics. |
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