My God! A Ham waiting till his bench is clean! Hah!

Irv VE6BP

"Jeff Liebermann" wrote in message
...
On Fri, 10 May 2013 09:26:14 -0400, "Tom" wrote:

My problem is now that the green light isn't coming on.

I might offer a clue. I have a Statpower/Xantrex 10A float charger
running my battery pile. It worked perfectly for about 5 years. Then,
I accidentally reversed the polarity on a battery. It still charges,
but the end of charge light no longer comes on with any battery that I
try. I'll tear it apart and see what I blew up when I have time and
the bench is clean.

You might want to take a known good battery of similar capacity and
try charging it to see if the light comes on. If not, it's charger
repair time.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Sat, 11 May 2013 11:07:42 -0600, "Irv Finkleman"
wrote:

My God! A Ham waiting till his bench is clean! Hah!
Irv VE6BP

Yes, I know. A clean workbench is a sign of a sick mind.
http://802.11junk.com/jeffl/pics/home/slides/chain-saw-repair.html
It's currently not quite as messy, but it's close.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

"Jeff Liebermann" wrote in message
...

Yes, I know. A clean workbench is a sign of a sick mind.
http://802.11junk.com/jeffl/pics/home/slides/chain-saw-repair.html
It's currently not quite as messy, but it's close.


Looks like you have an antenna harness for phasing 2 meter antennas. Is the
chain saw apart to put the co-phased antennas on ? hihi..

On Sun, 12 May 2013 16:34:53 -0400, "Ralph Mowery"
wrote:

"Jeff Liebermann" wrote in message
.. .

Yes, I know. A clean workbench is a sign of a sick mind.
http://802.11junk.com/jeffl/pics/home/slides/chain-saw-repair.html
It's currently not quite as messy, but it's close.

Looks like you have an antenna harness for phasing 2 meter antennas.

I guess you mean the Wilkinson power divider/splitter in the lower
left. It's not for phasing antennas, but for combining the signals
from two receive only 1090MHz antennas for ADS-B reception. The lines
are 3/4 electrical wavelengths long RG-6a/u because I couldn't find
any small diameter 75 ohm coax. That was a prototype I just threw
together to see if I really needed the 100 ohm resistor for receive
only. With low gain antennas, it's not needed. For high gain, where
impedance matching is more important, it's needed.

Is the
chain saw apart to put the co-phased antennas on ? hihi..

The chain saw has nothing to do with RF, unless you include using the
trees as supports for various HF antennas. In this case, the only
thing wrong with the saw was that the fuel line split and started
leaking. In order to replace a simple fuel line, I had to tear down
the saw completely. I used the occasion to also clean out the
accumulated crud, clean the carb, replace various filters, clean the
carbon out of the exhaust port, and do the usual tuneup. Right now,
the bench has two weed whackers torn apart. Since I took them apart
about 2 weeks ago, I don't remember which parts belong to which
engine. This should be interesting...




--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On 5/10/2013 8:26 AM, Tom wrote:
Hi again

Sorry, I know I asked this question a couple years ago or a similiar one.

I am stumbled again and I don't want to ruin my batteries so I thought I
would ask the pros again.

I have two Marine deep cycle 750 A Nautaulis Canadian Tire Batteries.
225min/115 ah model number is 10-3199-0. These are the bit bigger
batteries about 40 lbs.

I also have the 10am/2am Automatic Canadian Tire 11-1567-0 battery charger.

I have had these batteries in my garage all winter and about once every
month or 50 days I would bring them up to full charge. Takes about 25 or
30 hours at 10 amp charging until that GREEN light comes on and
automatically shutting off.

My problem is now that the green light isn't coming on. They are just
sitting there bubbling away, I actually had to put about a litre or two
into each of Reverse Osmosis water in to them because I could see they
were low. But the green light will not come on and they keep charging.
About 3 days now.

I took both batteries down to Canadian Tire and the chap used a little
hand tool electronic device that pumped me out a receipt thing (EXP800)
and this battery test told me that the batteries are GOOD. Voltage is
12.63 for one and the other was 12.68 for the other. They measured 922
CCA and 684 CCA (both rated for 750A) so he said they are good. Temp was
19C


I asked him why the green light doesn't come on and the charging stop
but he said because the batteries are fully charged and good that the
charger must be good. And it is good because I used it on another deep
cycle battery I have and the green light came on and it stopped when
fullly charged.

I see the needle is close to the green on the meter but just not moving
over and continues charging at 10 amps with the bigger batteries in
question.

Batteries are almost 4 years old.

Any ideas or comments? Should I stop the charging? or continue until
that green light comes on like it used to? I would like to get a few
more years from these batteries . All coments are appreciated, cheap or
otherwise, I appreciate your expertise very much. Sorry the question is
OFF Topic, but I know you folks have the answer better than the boating
groups. thnx

Best regards and thanks

73s


Hi Tom.

What you want is a 3 stage charger. The guy who said the old "clunk",
relay based, chargers are best is way off base.

A decent 3 stage charger lets you set a number of things, all of which
are tailored to your specific battery string.

I have a set with an 80 AH and an 160 AH AGM 12V battery. I charge
using a 200W solar array through a maximum power point 3 stage charger.
The MPP part isn't relevant for you, but the 3 stage adjustments plus
a battery temperature sensor are. You can set battery finish voltage
per manufacturer specs at a specific temperature and then the sensor
drives the rest based on current temperature. The 3 stages finish the
charge the correct way and don't overcharge the string or cause
excessive water loss.

tom
K0TAR

On 5/11/2013 8:14 PM, tom wrote:
Hi Tom.

What you want is a 3 stage charger. The guy who said the old "clunk",
relay based, chargers are best is way off base.

A decent 3 stage charger lets you set a number of things, all of which
are tailored to your specific battery string.

I have a set with an 80 AH and an 160 AH AGM 12V battery. I charge
using a 200W solar array through a maximum power point 3 stage charger.
The MPP part isn't relevant for you, but the 3 stage adjustments plus
a battery temperature sensor are. You can set battery finish voltage
per manufacturer specs at a specific temperature and then the sensor
drives the rest based on current temperature. The 3 stages finish the
charge the correct way and don't overcharge the string or cause
excessive water loss.

tom
K0TAR



Oops, forgot what I had. Put the string together last year from a 9
year old 66AH and a 4 year old 133AH battery. Each removed from a UPS
system. I've had the 66AH for 6 years on intelligent solar controllers.
Got the 133 last summer for $100 used. Upgraded my solar array to
200w from 33w and upgraded the controller to a 25 amp Solar Boost 2000e.

They sat from November to end of April with no charging. I checked the
voltage last week before I pulled the camper out of the garage for its
first light of the year - 12.80 volts. That is in the excellent range
after 5 months idle.

Best buys on AGM batteries is to look for 3 to 5 year old ones being
rotated out from data centers that demand high reliablity. They are
usually rated for at least a 20 year life. And are 0 maintenance to boot.

tom
K0TAR

On 5/11/2013 8:34 PM, tom wrote:

Best buys on AGM batteries is to look for 3 to 5 year old ones being
rotated out from data centers that demand high reliablity. They are
usually rated for at least a 20 year life. And are 0 maintenance to boot.

tom
K0TAR


And finding the used ones isn't hard. I found the 133AH on craigs list.

Be sure to buy identical types. My 2 are not the same AH rating but are
from the same line by the same manufacturer.

tom
K0TAR

On 5/11/2013 8:42 PM, tom wrote:
On 5/11/2013 8:34 PM, tom wrote:

Best buys on AGM batteries is to look for 3 to 5 year old ones being
rotated out from data centers that demand high reliablity. They are
usually rated for at least a 20 year life. And are 0 maintenance to
boot.

tom
K0TAR


And finding the used ones isn't hard. I found the 133AH on craigs list.

Be sure to buy identical types. My 2 are not the same AH rating but are
from the same line by the same manufacturer.

tom
K0TAR


mcalhoun asked me a question via email. I replied but my response was
rejected -

Delay reason: SMTP error from remote mailer after RCPT
:
host mail.xxxx.zzzz [ipv4 address]: 451 4.7.1 Greylisting in
action, please come back later

Sorry, your end is unnecessarily paranoid.

Mine is selectively paranoid. You should get one of those.

tom
K0TAR