Energizer 2013 AA Cell already leaking

On Jan 1, 4:28 pm, Jeff Liebermann <je...@cruzio.com> wrote:





On Sun, 1 Jan 2012 10:51:36 -0800 (PST), "hrhofm...@att.net"

hrhofm...@att.net> wrote:
Good pont about the idle/leakage current.  I just checked it, 25 ma
draw when pushing a button, 0 ua standby, so I guess idle/leakage
current is out of the picture.

Well, if your remote uses 2 batteries, you would have a total of 4000
ma-hr of capacity.  At a 25ma draw, that's
   4000 / 25 = 160 hrs = 6.67 days
if someone sat on a remote button.

Could I trouble you to double check the standby current, possibly with
a more sensitive amps guesser?  To drain the 4000 ma-hr batteries in 2
years (17,520 hrs), you only need:
   4000 / 17520 = 228 ua
of leakage.

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

Yeah, I did double check it, two separate measurements a couple of
minutes apart andredid thechecking wiring to make sure it was going
thru the remote, hence the pushbutton current draw and the idle.  The
other battery of the two AA Energizers in the remote still
functioned.  Just luck of the draw I guess.  Today is the day to check
up on all the things that I am too busy to do the rest of the year.
Hard to believe I've been retired from Bell Labs fo exactly 10.5 years
and still so busy doing things that I have to schedule a day to do
catch up on things I would rahter not do at all.- Hide quoted text -

- Show quoted text -

On Jan 1, 5:04 pm, "hrhofm...@att.net" <hrhofm...@att.net> wrote:
On Jan 1, 4:28 pm, Jeff Liebermann <je...@cruzio.com> wrote:





On Sun, 1 Jan 2012 10:51:36 -0800 (PST), "hrhofm...@att.net"
hrhofm...@att.net> wrote:
Good pont about the idle/leakage current. I just checked it, 25 ma
draw when pushing a button, 0 ua standby, so I guess idle/leakage
current is out of the picture.
Well, if your remote uses 2 batteries, you would have a total of 4000
ma-hr of capacity. At a 25ma draw, that's
4000 / 25 = 160 hrs = 6.67 days
if someone sat on a remote button.
Could I trouble you to double check the standby current, possibly with
a more sensitive amps guesser? To drain the 4000 ma-hr batteries in 2
years (17,520 hrs), you only need:
4000 / 17520 = 228 ua
of leakage.
--
Jeff Liebermann je...@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
Yeah, I did double check it, two separate measurements a couple of
minutes apart andredid thechecking wiring to make sure it was going
thru the remote, hence the pushbutton current draw and the idle. The
other battery of the two AA Energizers in the remote still
functioned. Just luck of the draw I guess. Today is the day to check
up on all the things that I am too busy to do the rest of the year.
Hard to believe I've been retired from Bell Labs fo exactly 10.5 years
and still so busy doing things that I have to schedule a day to do
catch up on things I would rahter not do at all.- Hide quoted text -

- Show quoted text -

The remote was sitting on the back of the tv table with the keyboard
up. The leakage was on the negative spring and on the removable
trapdoor so I wiped the spring and washed the trapdoor off, everything
works fine. It would not be worth the trouble to ship it to Energizer
to try to get a replacement reote. I will call them to let them know
what happened tomorrow when most everybody is back to work and see if
they will send me free coupons. I'll report back here what happens.

On 1/2/2012 12:53 AM, hrhofmann_at_att.net wrote:
Happened to try a seldom-used tv remote control last night, dead.
opened it up, one 2013 AA Energizer battery was fine, the other was
dead and leaking. I stupidly thought that the date on batterries was
how long they were supposed to last if they were not used - shelf
life.

Since the battery was not used more than a few minutes since it was
put in the remote a couple of years ago, and had been in an air-
conditioned and heated room in the house for its entire time since I
brought it home from the store, I thought that it was safe to leave it
in the remote without having to periodically check for leakage.
Fortunately, the leakage was minor and because of the physical
position of the remote, the leakage went onto the inside of the back
cover and did not get into the electronics in the remote.

Just thought I would post it here as a reminder not to assume anything
about battery life.

Well I know it's a contentious thing to talk about which brand but we
have just stopped buying Eveready products because to us they are just
inferior to another popular brand in most ways, like endurance and
leakage etc. IMHO it is also a good idea to wipe the contact surfaces
with an oily rag or a thin smear of grease when installing batteries
that are used in flashlights and the like. Whilst it's hard to remember,
following most manufacturer's advice to remove the batteries if the
device is to be unused for long periods is sound :-)

Rheilly P

Happened to try a seldom-used tv remote control last night, dead.
opened it up, one 2013 AA Energizer battery was fine, the other was
dead and leaking. I stupidly thought that the date on batterries was
how long they were supposed to last if they were not used - shelf
life.

Rheilly Phoull wrote:
On 1/2/2012 12:53 AM, hrhofmann_at_att.net wrote:
Happened to try a seldom-used tv remote control last night, dead.
opened it up, one 2013 AA Energizer battery was fine, the other was
dead and leaking. I stupidly thought that the date on batterries was
how long they were supposed to last if they were not used - shelf
life.

Since the battery was not used more than a few minutes since it was
put in the remote a couple of years ago, and had been in an air-
conditioned and heated room in the house for its entire time since I
brought it home from the store, I thought that it was safe to leave it
in the remote without having to periodically check for leakage.
Fortunately, the leakage was minor and because of the physical
position of the remote, the leakage went onto the inside of the back
cover and did not get into the electronics in the remote.

Just thought I would post it here as a reminder not to assume anything
about battery life.

Well I know it's a contentious thing to talk about which brand but we
have just stopped buying Eveready products because to us they are just
inferior to another popular brand in most ways, like endurance and
leakage etc. IMHO it is also a good idea to wipe the contact surfaces
with an oily rag or a thin smear of grease when installing batteries
that are used in flashlights and the like. Whilst it's hard to
remember, following most manufacturer's advice to remove the batteries
if the device is to be unused for long periods is sound :-)

Rheilly P

Well, I could chime in here to point out that we have opened a number of
video and pinball games that were factory sealed since 1980 - and they
all contained either Royovac, Eveready Energizers, or Duracels as
battery backups for 5101 CMOS RAM. In a number of cases the batteries
(all brands) still had a charge, a few were still very close to 1.5VDC,
most were around 1.0VDC.

John :-#)#


You are right of course, I reckon they tend to use better construction

On Sun, 1 Jan 2012 10:51:36 -0800 (PST), "hrhofmann_at_att.net"
hrhofmann_at_att.net> wrote:

Good pont about the idle/leakage current. I just checked it, 25 ma
draw when pushing a button, 0 ua standby, so I guess idle/leakage
current is out of the picture.

Well, if your remote uses 2 batteries, you would have a total of 4000
ma-hr of capacity. At a 25ma draw, that's
4000 / 25 = 160 hrs = 6.67 days
if someone sat on a remote button.

Could I trouble you to double check the standby current, possibly with
a more sensitive amps guesser? To drain the 4000 ma-hr batteries in 2
years (17,520 hrs), you only need:
4000 / 17520 = 228 ua
of leakage.

On 2/01/2012 3:53 AM, hrhofmann_at_att.net wrote:

Happened to try a seldom-used tv remote control last night, dead.
opened it up, one 2013 AA Energizer battery was fine, the other was
dead and leaking. I stupidly thought that the date on batterries was
how long they were supposed to last if they were not used - shelf
life.

That aside, batteries are not meant to leak anymore. Some of us can no
doubt remember when batteries were sold in two varieties - ordinary, and
(more expensive) leak proof - the point being that the ordinary ones
were pretty much guaranteed to leak when discharged, whereas the leak
proof ones would not. The ordinary ones have long since vanished.

Happened to try a seldom-used tv remote control last night, dead.
opened it up, one 2013 AA Energizer battery was fine, the other was
dead and leaking. I stupidly thought that the date on batterries was
how long they were supposed to last if they were not used - shelf
life.

Since the battery was not used more than a few minutes since it was
put in the remote a couple of years ago, and had been in an air-
conditioned and heated room in the house for its entire time since I
brought it home from the store, I thought that it was safe to leave it
in the remote without having to periodically check for leakage.
Fortunately, the leakage was minor and because of the physical
position of the remote, the leakage went onto the inside of the back
cover and did not get into the electronics in the remote.

Just thought I would post it here as a reminder not to assume anything
about battery life.

Happened to try a seldom-used tv remote control last night, dead.
opened it up, one 2013 AA Energizer battery was fine, the other was
dead and leaking.  I stupidly thought that the date on batterries was
how long they were supposed to last if they were not used - shelf
life.

Since the battery was not used more than a few minutes since it was
put in the remote a couple of years ago, and had been in an air-
conditioned and heated room in the house for its entire time since I
brought it home from the store, I thought that it was safe to leave it
in the remote without having to periodically check for leakage.
Fortunately, the leakage was minor and because of the physical
position of the remote, the leakage went onto the inside of the back
cover and did not get into the electronics in the remote.

Just thought I would post it here as a reminder not to assume anything
about battery life.