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</head><body bgColor="#ffffff" text="#000000"><div><div style="font-family: Calibri,sans-serif; font-size: 11pt;">Hi<br>Presumably there are 4 1.5 Volt cells in the phone that are connected in series. 4 * 1.5 = 6, voila.<br><br>Per<br><br></div></div><hr><span style="font-family: Tahoma,sans-serif; font-size: 10pt; font-weight: bold;">Från: </span><span style="font-family: Tahoma,sans-serif; font-size: 10pt;">Bob Spidell</span><br><span style="font-family: Tahoma,sans-serif; font-size: 10pt; font-weight: bold;">Skickat: </span><span style="font-family: Tahoma,sans-serif; font-size: 10pt;">2015-06-04 16:40</span><br><span style="font-family: Tahoma,sans-serif; font-size: 10pt; font-weight: bold;">Till: </span><span style="font-family: Tahoma,sans-serif; font-size: 10pt;">healeys@autox.team.net</span><br><span style="font-family: Tahoma,sans-serif; font-size: 10pt; font-weight: bold;">Ämne: </span><span style="font-family: Tahoma,sans-serif; font-size: 10pt;">Re: [Healeys] off topic rechargeable battery query</span><br><br>
The mAH is a rating of how much current the battery can supply for
how long:<br>
<br>
'milli Amp Hour'<br>
<br>
Get the highest rated you can find/afford; though the rating on the
Chinese knock-offs--I think most of them are--seems to be
overstated. The load--how much current will be used--is determined
by the circuit on the phone.<br>
<br>
The statement on the charger makes no sense; applying 6V to a 1.5V
battery would cook it in short order (putting 48V on a car battery
would boil the electrolyte; creating a major mess and possibly an
explosion). I suspect it's a nominal rating; i.e. it will put out
150mAH at 6v, but only needs about, oh, 2V or less to charge the
batteries and would supply 450mAH at that voltage.<br>
<br>
E (voltage) = I (current) * R (resistance). Plug in any 2 known
values--and use a little algebra if necessary--and you'll get the
third.<br>
<br>
Bob<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 6/4/2015 7:03 AM, Simon Lachlan
wrote:<br>
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<p class="MsoNormal">The string on 1.5v recharging demonstrated
that some of you gurus are multitalented(sp?). So............<o:p></o:p></p>
<p class="MsoNormal">The batteries in our domestic cordless
phones are giving up.<o:p></o:p></p>
<p class="MsoNormal">They are AAA Nickel Metal Hydride 550mAh.<o:p></o:p></p>
<p class="MsoNormal">Looking on eBay, most similar rechargeable
AAA phone batteries are around 1500mAh. Nothing less than
700mAh.<o:p></o:p></p>
<p class="MsoNormal">Can I stick in the highest rated that I can
find, 1800mAh, and expect good results? Or does the higher mAh
level imply some level of something that the phones’ chargers
won’t manage???<o:p></o:p></p>
<p class="MsoNormal">(The charger says “Output: 6v. 150mAh”)<o:p></o:p></p>
<p class="MsoNormal">Simon<o:p></o:p></p>
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