What kind of battery charger ?

John Larkin wrote:
On Tue, 01 Feb 2011 17:09:47 +1100, Grant<omg@grrr.id.au> wrote:

On Fri, 28 Jan 2011 18:11:32 -0800, John Larkin<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

On Fri, 28 Jan 2011 02:26:46 -0800 (PST), Varactor
moreflaps@gmail.com> wrote:

On Jan 28, 3:46 pm, mowhoong<mowho...@hotmail.com> wrote:
I brought a Ansmann ALCS2-24A' auto voltage detacts charger from a
shop " Element 14". I encounter a problem. My 6 volt 10A lead acid
battery at its weakest measure 3.59 volt when I connected to this
charger which indicate it tobe 2 volt value instead of 6 volt. I
I assumed the issue was problem with the charger and brought a 2nd one
with same brand and model. At testing counter in the shop , the same
problem occurs the 2 volt indicate instead of 6 volt. I try some other
charger with the same battery with float charge for 3-5 mins than to
the ansmann charger, It now auto detected the voltage was 6 volt and
charging the battery.
Is this a design problem with the Ansmann charger ? Thanks for members
advice .

Your 6V battery is dead if its reading 3.59 volts. Get a new one.

Cheers

A car battery that's completely discharged, a fraction of a volt
across its terminals, can be fully recharged and will work fine. But a
lot of modern chargers will refuse to put current into it. I'm not
sure why.

To try stop 12V chargers running into 6V battery, or reversed battery.

Or to sell people new batteries. "That battery won't charge" means "it
won't charge with the charger I just sold you."

A charger could be smart enough to charge any battery, 6 or 12 volts.
Or it could have a switch. Are there any 6 volt batteries still
around?

I keep a Lascar power supply around now. That will push enough current
into a battery overnight to get a car to start.

http://www.amazon.com/Lascar-Power-Supply-Single-Output/dp/B0008D5FZ4

Cute little things, handy to have around for all sorts of things.

John
Click to expand...
I keep a big ugly Sears transformer-rectifier supply around for the same
reason. Car batteries can take a lot of punishment.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058

email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net
 
On Feb 1, 11:22 am, John Larkin
<jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold





gher...@teachspin.com> wrote:
On Feb 1, 1:40 am, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 01 Feb 2011 17:09:47 +1100, Grant <o...@grrr.id.au> wrote:
On Fri, 28 Jan 2011 18:11:32 -0800, John Larkin <jjlar...@highNOTlandTHIStechnologyPART.com> wrote:

On Fri, 28 Jan 2011 02:26:46 -0800 (PST), Varactor
morefl...@gmail.com> wrote:

On Jan 28, 3:46 pm, mowhoong <mowho...@hotmail.com> wrote:
I brought a Ansmann ALCS2-24A' auto voltage detacts charger from a
shop " Element 14". I encounter a problem. My 6 volt 10A lead acid
battery at its weakest measure 3.59 volt when I connected to this
charger which indicate it tobe 2 volt value instead of 6 volt. I
I assumed the issue was problem with the charger and brought a 2nd one
with same brand and model. At testing counter in the shop , the same
problem occurs the 2 volt indicate instead of 6 volt. I try some other
charger with the same battery with float charge for 3-5 mins than to
the ansmann charger, It now auto detected the voltage was 6 volt and
charging the battery.
Is this a design problem with the Ansmann charger ? Thanks for members
advice .

Your 6V battery is dead if its reading 3.59 volts.  Get a new one..

Cheers

A car battery that's completely discharged, a fraction of a volt
across its terminals, can be fully recharged and will work fine. But a
lot of modern chargers will refuse to put current into it. I'm not
sure why.

To try stop 12V chargers running into 6V battery, or reversed battery..  

Or to sell people new batteries. "That battery won't charge" means "it
won't charge with the charger I just sold you."

A charger could be smart enough to charge any battery, 6 or 12 volts.
Or it could have a switch. Are there any 6 volt batteries still
around?

Some old tractors still use 6 volt batteries.  I think I can buy them
up the road at Java Farm Supply.

I heard a report on NPR this morning that no technology ever goes
extinct.

Slave-rowed warships.
Click to expand...
There must be someone restoring one of these? I was searching to see
if I could find one I could get a ride on... no luck.

This is supposed to be a picture.... Hard to see.

http://free.bigstockphoto.com/image-2631428/stock-photo-reconstructed-roman-galley-on-the-lake-of-geneva-switzerland

George H.
John- Hide quoted text -

- Show quoted text -
Click to expand...
 
George Herold wrote:
On Feb 1, 11:22 am, John Larkin
On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold

I heard a report on NPR this morning that no technology ever goes
extinct.

Slave-rowed warships.

There must be someone restoring one of these? I was searching to see
if I could find one I could get a ride on... no luck.

This is supposed to be a picture.... Hard to see.

http://free.bigstockphoto.com/image-2631428/stock-photo-reconstructed-roman-galley-on-the-lake-of-geneva-switzerland
Click to expand...

Have you tried googling "bireme" or "trireme?"

Good Luck!
Rich
 
On Tue, 01 Feb 2011 17:09:47 +1100, Grant <omg@grrr.id.au> wrote:

On Fri, 28 Jan 2011 18:11:32 -0800, John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

On Fri, 28 Jan 2011 02:26:46 -0800 (PST), Varactor
moreflaps@gmail.com> wrote:

On Jan 28, 3:46 pm, mowhoong <mowho...@hotmail.com> wrote:
I brought a Ansmann ALCS2-24A' auto voltage detacts charger from a
shop " Element 14". I encounter a problem. My 6 volt 10A lead acid
battery at its weakest measure 3.59 volt when I connected to this
charger which indicate it tobe 2 volt value instead of 6 volt. I
I assumed the issue was problem with the charger and brought a 2nd one
with same brand and model. At testing counter in the shop , the same
problem occurs the 2 volt indicate instead of 6 volt. I try some other
charger with the same battery with float charge for 3-5 mins than to
the ansmann charger, It now auto detected the voltage was 6 volt and
charging the battery.
Is this a design problem with the Ansmann charger ? Thanks for members
advice .

Your 6V battery is dead if its reading 3.59 volts. Get a new one.

Cheers

A car battery that's completely discharged, a fraction of a volt
across its terminals, can be fully recharged and will work fine. But a
lot of modern chargers will refuse to put current into it. I'm not
sure why.

To try stop 12V chargers running into 6V battery, or reversed battery.

A good charger might have an over ride for that, pushbutton start?

You'd be surprised how many ways people can damage chargers and lead acid
batteries :)

You're right about temporarily flattened batteries, does some damage but no
instant kill -- sulphation takes long term undercharge to develop, like lots
of short car trips.
Click to expand...
Starter batteries have very thin plates, for more surface area. Deep
discharging them warps the plates. Once they short it's all over. "Marine"
batteries have a thicker plate so can take a deeper discharge, with the
trade-off of area/capacity.
 
On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold
<gherold@teachspin.com> wrote:
I heard a report on NPR this morning that no technology ever goes
extinct.
Click to expand...
---
Why is that remarkaable?

---
JF
 
On Tue, 01 Feb 2011 08:22:44 -0800, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold
gherold@teachspin.com> wrote:

I heard a report on NPR this morning that no technology ever goes
extinct.

Slave-rowed warships.
Click to expand...
---
Definitely not extinct.

Have you not heard of taxes?

---
JF
 
On Feb 1, 5:07 pm, Rich Grise <ri...@example.net.invalid> wrote:
George Herold wrote:
On Feb 1, 11:22 am, John Larkin
On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold

I heard a report on NPR this morning that no technology ever goes
extinct.

Slave-rowed warships.

There must be someone restoring one of these?  I was searching to see
if I could find one I could get a ride on... no luck.

This is supposed to be a picture....  Hard to see.

http://free.bigstockphoto.com/image-2631428/stock-photo-reconstructed...

Have you tried googling "bireme" or "trireme?"

Good Luck!
Rich
Click to expand...
No, I was searching for Roman galley. Can I get a ride, or do I have
to row?

George H.
 
On Feb 1, 8:01 pm, John Fields <jfie...@austininstruments.com> wrote:
On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold

gher...@teachspin.com> wrote:

I heard a report on NPR this morning that no technology ever goes
extinct.

---
Why is that remarkaable?

---
JF
Click to expand...
I thought it was interesting... cuniform?

George H.
 
On Tue, 1 Feb 2011 18:34:20 -0800 (PST), George Herold
<gherold@teachspin.com> wrote:

On Feb 1, 8:01 pm, John Fields <jfie...@austininstruments.com> wrote:
On Tue, 1 Feb 2011 06:27:06 -0800 (PST), George Herold

gher...@teachspin.com> wrote:

I heard a report on NPR this morning that no technology ever goes
extinct.

---
Why is that remarkaable?

---
JF

I thought it was interesting... cuniform?

George H.
Click to expand...
Trypo.

---
JF
 
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