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Ben
Guest

Wed Jun 11, 2014 6:18 am   



responding to
http://www.electrondepot.com/components/using-li-ion-batteries-33340-.htm ,
Ben wrote:
Quote:
gangprobing.alien wrote:



"BEN"
wrote in message
news:99453$5394a918$43de0cc0$31701_at_news.flashnewsgroups.com...
responding to

http://www.electrondepot.com/components/using-li-ion-batteries-33340-.htm

,
BEN wrote:
gangprobing.alien wrote:

With NiMh, its accustomed practice to give the cells a few
charge cycles
to work up to their full performance - does the same apply to
Li-Ion?
Recently I bought a 3W Li-Ion LED handlamp and I've spent more
time
recharging the battery than actually using it! Every time I've
gone to
use it I've found that the battery has self discharged and is
totally
flat. Although there is no mention of full charge cycling in
the
instruction booklet, I tried charging it then running it down
in a
single session to
cycle the battery - there seems to be some improvement, but
its still
too soon to tell for sure. Any comments on the correct care of
Li-Ion
batteries are welcome. Thanks.

What type of battery is it. cyl 18650? I have several flashlights
that
use
18650. 1000 lumens to 6000 lumens. None of the batteries discharge

whatsoever.

Haven't opened it to have a look - presumably it will eventually
deteriorate
to not very long running time.

Allegedly, it has a 3-yr warranty and I still have the box it came in,
but
its a Lidl stores weekly offer that I'd have to wait for them to come
around
again.

It has a 2200mAh battery which it claims should run the 5W LED spot
light
for 2-hrs.


If you have a voltmeter charge up the battery for the normal charge time.
Measure the voltage. It should measure about 4.22 vdc. If it doesn't there
is something wrong with the charger or the battery. After a week it should
measure about 3.7v. The Chinese ones I purchased hold 3.4 after one month and
I have heard that they are seconds from major manufacturers, but thet work
well in my high power flashlights. Also I use the special dual cell charger
that they come with. If you have a multimeter you can remove the end cap
switch and measure the current the flashlight.
One of the flashlights I have has a slide switch which allows an infinite
number of brightness settings. If I turn off the flashlight with the slide
switch the battery will run down because a small amount of current is
flowing. So I have to unscrew the tail cap when I shut off the light. Then the
flashlight does not discharge the battery

Charlie+
Guest

Wed Jun 11, 2014 1:45 pm   



On Sun, 8 Jun 2014 20:28:14 +0100, "Ian Field"
<gangprobing.alien_at_ntlworld.com> wrote as underneath :

Quote:


"BEN" <f6ceedb9c75b52f7fcc0a55cf0cfbf5d_984_at_example.com> wrote in message
news:99453$5394a918$43de0cc0$31701_at_news.flashnewsgroups.com...
responding to
http://www.electrondepot.com/components/using-li-ion-batteries-33340-.htm
,
BEN wrote:
gangprobing.alien wrote:

With NiMh, its accustomed practice to give the cells a few charge cycles
to work up to their full performance - does the same apply to Li-Ion?
Recently I bought a 3W Li-Ion LED handlamp and I've spent more time
recharging the battery than actually using it! Every time I've gone to
use it I've found that the battery has self discharged and is totally
flat. Although there is no mention of full charge cycling in the
instruction booklet, I tried charging it then running it down in a
single session to
cycle the battery - there seems to be some improvement, but its still
too soon to tell for sure. Any comments on the correct care of Li-Ion
batteries are welcome. Thanks.

What type of battery is it. cyl 18650? I have several flashlights that
use
18650. 1000 lumens to 6000 lumens. None of the batteries discharge
whatsoever.

Haven't opened it to have a look - presumably it will eventually deteriorate
to not very long running time.

Allegedly, it has a 3-yr warranty and I still have the box it came in, but
its a Lidl stores weekly offer that I'd have to wait for them to come around
again.

It has a 2200mAh battery which it claims should run the 5W LED spot light
for 2-hrs.


Id write to the warrantee people, Lidl are very good about genuine
complaints in my experience, they might just send you another one FOC
without requiring return, say you cant open it to find what the problem
is because of warrantee void! C+

Ian Field
Guest

Wed Jun 11, 2014 11:22 pm   



"Ben" <f6ceedb9c75b52f7fcc0a55cf0cfbf5d_984_at_example.com> wrote in message
news:4da81$5397a03a$43de0cc0$14161_at_news.flashnewsgroups.com...
Quote:
responding to
http://www.electrondepot.com/components/using-li-ion-batteries-33340-.htm
,
Ben wrote:
gangprobing.alien wrote:



"BEN" wrote in message
news:99453$5394a918$43de0cc0$31701_at_news.flashnewsgroups.com...
responding to
http://www.electrondepot.com/components/using-li-ion-batteries-33340-.htm

, BEN wrote:
gangprobing.alien wrote: With NiMh, its accustomed practice to give
the cells a few
charge cycles
to work up to their full performance - does the same apply to
Li-Ion?
Recently I bought a 3W Li-Ion LED handlamp and I've spent more
time
recharging the battery than actually using it! Every time I've
gone to
use it I've found that the battery has self discharged and is
totally
flat. Although there is no mention of full charge cycling in
the
instruction booklet, I tried charging it then running it down
in a
single session to
cycle the battery - there seems to be some improvement, but
its still
too soon to tell for sure. Any comments on the correct care of
Li-Ion
batteries are welcome. Thanks.

What type of battery is it. cyl 18650? I have several flashlights
that
use 18650. 1000 lumens to 6000 lumens. None of the batteries discharge

whatsoever.

Haven't opened it to have a look - presumably it will eventually
deteriorate to not very long running time. Allegedly, it has a 3-yr
warranty and I still have the box it came in,
but its a Lidl stores weekly offer that I'd have to wait for them to
come
around again. It has a 2200mAh battery which it claims should run the 5W
LED spot
light for 2-hrs.
If you have a voltmeter charge up the battery for the normal charge time.
Measure the voltage. It should measure about 4.22 vdc. If it doesn't
there
is something wrong with the charger or the battery.


Its 3yr warranty hasn't expired yet so I'm resisting the temptation to open
it up.

It was on the Lidl store weekly offers, so I have to wait for them to come
around again to get a replacement rather than refund.

For the time being, the battery stays up as long as its left on the charger,
and I get a reasonable run time when using it - if it stops doing that
before they come round again (or the warranty expires) I'll probably open it
up and see what can be done.

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