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Hi
Presumably there are 4 1.5 Volt cells in the phone that are connected in se=
ries. 4 * 1.5 =3D 6, voila.
Per
----- Ursprungligt meddelande -----
Fr=E5n: Bob Spidell
Skickat: 2015-06-04 16:40
Till: healeys@autox.team.net
=C4mne: Re: [Healeys] off topic rechargeable battery query
The mAH is a rating of how much current the battery can supply for how long=
:
'milli Amp Hour'
Get the highest rated you can find/afford; though the rating on the Chines=
e 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.
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 i=
t's a nominal rating; i.e. it will put out 150mAH at 6v, but only needs abo=
ut, oh, 2V or less to charge the batteries and would supply 450mAH at that =
voltage.
E (voltage) =3D I (current) * R (resistance). Plug in any 2 known values-=
-and use a little algebra if necessary--and you'll get the third.
Bob
On 6/4/2015 7:03 AM, Simon Lachlan wrote:
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The string on 1.5v recharging demonstrated that some of you gurus are multi=
talented(sp?). So............
The batteries in our domestic cordless phones are giving up.
They are AAA Nickel Metal Hydride 550mAh.
Looking on eBay, most similar rechargeable AAA phone batteries are around 1=
500mAh. Nothing less than 700mAh.
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 th=
e phones=92 chargers won=92t manage???
(The charger says =93Output: 6v. 150mAh=94)
Simon=
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</head><body bgColor=3D"#ffffff" text=3D"#000000"><div><div style=3D"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 =3D 6, v=
oila.<br><br>Per<br><br></div></div><hr><span style=3D"font-family: Tahoma,=
sans-serif; font-size: 10pt; font-weight: bold;">Fr=E5n: </span><span style=
=3D"font-family: Tahoma,sans-serif; font-size: 10pt;">Bob Spidell</span><br=
><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt; font-weigh=
t: bold;">Skickat: </span><span style=3D"font-family: Tahoma,sans-serif; fo=
nt-size: 10pt;">2015-06-04 16:40</span><br><span style=3D"font-family: Taho=
ma,sans-serif; font-size: 10pt; font-weight: bold;">Till: </span><span styl=
e=3D"font-family: Tahoma,sans-serif; font-size: 10pt;">healeys@autox.team.n=
et</span><br><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt=
; font-weight: bold;">=C4mne: </span><span style=3D"font-family: Tahoma,san=
s-serif; font-size: 10pt;">Re: [Healeys] off topic rechargeable battery que=
ry</span><br><br>=0A=
The mAH is a rating of how much current the battery can supply for=0A=
how long:<br>=0A=
<br>=0A=
'milli Amp Hour'<br>=0A=
<br>=0A=
Get the highest rated you can find/afford; though the rating on the=0A=
Chinese knock-offs--I think most of them are--seems to be=0A=
overstated. The load--how much current will be used--is determine=
d=0A=
by the circuit on the phone.<br>=0A=
<br>=0A=
The statement on the charger makes no sense; applying 6V to a 1.5V=0A=
battery would cook it in short order (putting 48V on a car battery=0A=
would boil the electrolyte; creating a major mess and possibly an=0A=
explosion). I suspect it's a nominal rating; i.e. it will put out=
=0A=
150mAH at 6v, but only needs about, oh, 2V or less to charge the=0A=
batteries and would supply 450mAH at that voltage.<br>=0A=
<br>=0A=
E (voltage) =3D I (current) * R (resistance). Plug in any 2 known=
=0A=
values--and use a little algebra if necessary--and you'll get the=0A=
third.<br>=0A=
<br>=0A=
Bob<br>=0A=
<br>=0A=
<br>=0A=
<br>=0A=
<div class=3D"moz-cite-prefix">On 6/4/2015 7:03 AM, Simon Lachlan=0A=
wrote:<br>=0A=
</div>=0A=
<blockquote cite=3D"mid:013201d09ecf$393d6c50$abb844f0$@lachlan@homecal=
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<p class=3D"MsoNormal">The string on 1.5v recharging demonstrated=
=0A=
that some of you gurus are multitalented(sp?). So............<o:p=
></o:p></p>=0A=
<p class=3D"MsoNormal">The batteries in our domestic cordless=0A=
phones are giving up.<o:p></o:p></p>=0A=
<p class=3D"MsoNormal">They are AAA Nickel Metal Hydride 550mAh.<o:=
p></o:p></p>=0A=
<p class=3D"MsoNormal">Looking on eBay, most similar rechargeable=
=0A=
AAA phone batteries are around 1500mAh. Nothing less than=0A=
700mAh.<o:p></o:p></p>=0A=
<p class=3D"MsoNormal">Can I stick in the highest rated that I can=
=0A=
find, 1800mAh, and expect good results? Or does the higher mAh=0A=
level imply some level of something that the phones=92 chargers=
=0A=
won=92t manage???<o:p></o:p></p>=0A=
<p class=3D"MsoNormal">(The charger says =93Output: 6v. 150mAh=94)<=
o:p></o:p></p>=0A=
<p class=3D"MsoNormal">Simon<o:p></o:p></p>=0A=
</div>=0A=
<br>=0A=
</blockquote>=0A=
<br>=0A=
=0A=
=0A=
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