AC Adaptor can work as a charger

M

Mint

Guest
There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

Took about an hour.

A phone recorder was hooked up and tested using only the 12 Volt
battery as it's power source.

Answered and recorded messages flawlessly.

I have another 12 V adaptor that only puts out 200 m.a.

Do you think that would be too much current to keep the battery
charged?

Thanks.
 
"Mint"

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.
Click to expand...

** That is nothing like fully charged - pal .




.... Phil
 
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On 11-02-22 08:35 PM, Mint wrote:
On Feb 22, 9:24 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
"Mint"

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

** That is nothing like fully charged - pal .

... Phil

I found your answer to be cryptic.

Andy
Click to expand...


Tales from the 'decrypt'....

http://www.powerstream.com/SLA.htm


mike
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"Mint"
"Phil Allison"
"Mint"
My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

** That is nothing like fully charged - pal .
Click to expand...
I found your answer to be cryptic.


** Full charge on a 12 volt, SLA battery requires the terminal voltage to
rise to 13.8 volts or more and the charging current to fall to a low value.
12.6 volts is no where near the end of charge point.

BTW

You related to that guy on TV called " Sheldon " ??


..... Phil
 
On Feb 22, 9:24 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
"Mint"

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

 ** That is nothing like fully charged -  pal .

...  Phil
Click to expand...
I found your answer to be cryptic.

Andy
 
On Tue, 22 Feb 2011 18:23:59 -0800 (PST), Mint
<chocolatemint77581@yahoo.com> wrote:

There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

Took about an hour.

A phone recorder was hooked up and tested using only the 12 Volt
battery as it's power source.

Answered and recorded messages flawlessly.

I have another 12 V adaptor that only puts out 200 m.a.

Do you think that would be too much current to keep the battery
charged?

Thanks.
Click to expand...
My car was dead in my garage, head-in, and it would be an uphill push
to get it out to jump from another car. The battery was flat dead,
zero volts, and the stupid electronic charger that I bought wouldn't
put any current into it [1]. So I found an old 24 volt wall-wart from
an ancient modem, put a resistor in series, and hooked that up. The
right resistor turned out to be a belt sander. The car started after
an overnight charge.

John

[1] they are apparently designed to not charge a dead battery.
 
On Feb 22, 11:28 pm, John Larkin
<jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 22 Feb 2011 18:23:59 -0800 (PST), Mint





chocolatemint77...@yahoo.com> wrote:
There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

Took about an hour.

A phone recorder was hooked up and tested using only the 12 Volt
battery as it's power source.

Answered and recorded messages flawlessly.

I have another 12 V adaptor that only puts out 200 m.a.

Do you think that would be too much current to keep the battery
charged?

Thanks.

My car was dead in my garage, head-in, and it would be an uphill push
to get it out to jump from another car. The battery was flat dead,
zero volts, and the stupid electronic charger that I bought wouldn't
put any current into it [1]. So I found an old 24 volt wall-wart from
an ancient modem, put a resistor in series, and hooked that up. The
right resistor turned out to be a belt sander. The car started after
an overnight charge.

John

[1] they are apparently designed to not charge a dead battery.
Click to expand...
Glad you got it going.

Andy
 
On Feb 22, 10:11 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
"Mint"
"Phil Allison"
 "Mint"



My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

** That is nothing like fully charged - pal .

I found your answer to be cryptic.

** Full charge on a 12 volt, SLA battery requires the terminal voltage to
rise to 13.8 volts or more and the charging current to fall to a low value.
12.6 volts is no where near the end of charge point.

BTW

You related to that guy on TV called  " Sheldon " ??

....  Phil
Click to expand...
This answer is good.

Andy
 
On Wed, 23 Feb 2011 03:44:41 -0800 (PST), Mint
<chocolatemint77581@yahoo.com> wrote:

On Feb 22, 11:28 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 22 Feb 2011 18:23:59 -0800 (PST), Mint





chocolatemint77...@yahoo.com> wrote:
There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

Took about an hour.

A phone recorder was hooked up and tested using only the 12 Volt
battery as it's power source.

Answered and recorded messages flawlessly.

I have another 12 V adaptor that only puts out 200 m.a.

Do you think that would be too much current to keep the battery
charged?

Thanks.

My car was dead in my garage, head-in, and it would be an uphill push
to get it out to jump from another car. The battery was flat dead,
zero volts, and the stupid electronic charger that I bought wouldn't
put any current into it [1]. So I found an old 24 volt wall-wart from
an ancient modem, put a resistor in series, and hooked that up. The
right resistor turned out to be a belt sander. The car started after
an overnight charge.

John

[1] they are apparently designed to not charge a dead battery.

Glad you got it going.

Andy
Click to expand...
Now I keep a Lascar power supply in the garage. It's handy for all
sorts of things.

John
 
Op 2/23/2011 3:23 AM, Mint schreef:
There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.
Click to expand...
A AC to AC adapter can not be used.

When you magical make DC then you can.

--
pim.
 
On Thu, 24 Feb 2011, tuinkabouter wrote:

Op 2/23/2011 3:23 AM, Mint schreef:
There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

A AC to AC adapter can not be used.

When you magical make DC then you can.

So what's a DC adapter?
Click to expand...

I'd guess if the term was used, it would be an inverter running off the
car battery to supply some higher voltage.

In other words, the "DC" refers to the input, not the output.

Same with "AC adapters", it defines something that runs off the
120V or so AC coming out of the wall. ONe might even specifically
consider them to be small units, often with the AC line plug built into
it.

And once you have that, the rest doesn't matter. Some have AC output (ie
they are just a transformer), some have rectifiers (ie rippled DC), some
have the rectifiers and filter capacitor, and some have all that plus
regulation of some sort. SOme don't even have a 120V transformer, they
are switching supplies.

Hence that Ikea Halogen lamp I have on my desk, the AC adapter has
AC output for the bulb. The AC adapter for my Grundig shortwave radio
has rectification, and perhaps some level of filter capacitor built in.
My decent nimh charger is a switching supply, obviously it does put out
DC. The Commodore 64 AC adapter had +5, +12 and maybe a -12V output, plus
9VAC to run the clock.

But they are all "AC adapters" since they run off 120VAC from the
wall (unless you want to go for semantics and consider the C64 unit more
like a "external power supply" due to its larger size.

Michael
 
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On 11-02-23 05:51 PM, Michael Black wrote:

But they are all "AC adapters" since they run off 120VAC from the wall
(unless you want to go for semantics and consider the C64 unit more like
a "external power supply" due to its larger size.
Click to expand...
I remember shaking my head when I discovered that Commodore covered the
fuse in those things with resin. Pure genius. Sell 30 dollar supplies
instead of 5 cent fuses. Then they cleverly moved the Amiga into
oblivion. The thing was twenty years head of it's time and they screwed
thins up. I don't know if it was Jack Tramiel's fault or not.



mike


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"m II" wrote in message news:4d648868@news.x-privat.org...

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Hash: SHA1

On 11-02-22 08:35 PM, Mint wrote:
On Feb 22, 9:24 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
"Mint"

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

** That is nothing like fully charged - pal .

... Phil

I found your answer to be cryptic.

Andy
Click to expand...


Tales from the 'decrypt'....

http://www.powerstream.com/SLA.htm


Notice how nobody ever answers our posts anymore, mikey?
Maybe 'cause they never see us anymore, mikey?

I think it is time to morph again this year, eh mikey?

Perhaps time to change your evil ways, baby?

How is that other shoe fitting?


mike
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"m II" wrote in message news:4d65c2a1@news.x-privat.org...

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Hash: SHA1



On 11-02-23 05:51 PM, Michael Black wrote:

But they are all "AC adapters" since they run off 120VAC from the wall
(unless you want to go for semantics and consider the C64 unit more like
a "external power supply" due to its larger size.
Click to expand...
I remember shaking my head when I discovered that Commodore covered the
fuse in those things with resin. Pure genius. Sell 30 dollar supplies
instead of 5 cent fuses. Then they cleverly moved the Amiga into
oblivion. The thing was twenty years head of it's time and they screwed
thins up. I don't know if it was Jack Tramiel's fault or not.



mike

Another post without anybody answering, mikey?

Why would that be now?

Tit for tat?

Only about 6 more years of this to go?


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On Feb 23, 6:05 pm, tuinkabouter <dachthetn...@net.invalid> wrote:
Op 2/23/2011 3:23 AM, Mint schreef:

There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

A AC to AC adapter can not be used.

When you magical make DC then you can.

--
pim.
Click to expand...
From my post.

using a 500 m.a. AC/DC adaptor.
Click to expand...
This means that the INPUT = 120 Volts Alternating Current
that is produced by an Electric Utility using natural gas, wind,
nuclear, fuel oil, coal, and lignite.

Texas has lots of lignite BTW. :)

AND

OUTPUT = approx. 13.0 Volts Direct Current.
 
On Feb 23, 2:03 pm, John Larkin
<jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Wed, 23 Feb 2011 03:44:41 -0800 (PST), Mint



chocolatemint77...@yahoo.com> wrote:
On Feb 22, 11:28 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 22 Feb 2011 18:23:59 -0800 (PST), Mint

chocolatemint77...@yahoo.com> wrote:
There were some that thought that an AC adaptor could not be used
sucessfully as a battery charger.

My experiment results:

A sealed lead battery (UB1213) with an initial voltage of 9.7 V was
charged to a final voltage of 12.6 V using a 500 m.a. AC/DC adaptor.

Took about an hour.

A phone recorder was hooked up and tested using only the 12 Volt
battery as it's power source.

Answered and recorded messages flawlessly.

I have another 12 V adaptor that only puts out 200 m.a.

Do you think that would be too much current to keep the battery
charged?

Thanks.

My car was dead in my garage, head-in, and it would be an uphill push
to get it out to jump from another car. The battery was flat dead,
zero volts, and the stupid electronic charger that I bought wouldn't
put any current into it [1]. So I found an old 24 volt wall-wart from
an ancient modem, put a resistor in series, and hooked that up. The
right resistor turned out to be a belt sander. The car started after
an overnight charge.

John

[1] they are apparently designed to not charge a dead battery.

Glad you got it going.

Andy

Now I keep a Lascar power supply in the garage. It's handy for all
sorts of things.

John
Click to expand...
I can use some help with another issue.

The 200 m.a. AC/DC adaptor did not supply enough current to keep the
battery charged all the way.

Battery specs

Standby use = .195 amps
Cyclic use = .39 amps

Would 500 m.a. be sufficient ?

Andy
 
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