Digest for sci.electronics.repair@googlegroups.com - 7 updates in 3 topics

Witherspoon <ws194@aol.com>: Feb 14 02:47PM -0500

...I don't see 9V Eneloops, unless I am mistaken. I have some 9V
devices that could use the changeout too. Recommendations?
Phil Allison <pallison49@gmail.com>: Feb 14 11:43PM -0800

Witherspoon wrote:
=====================
> ...I don't see 9V Eneloops, unless I am mistaken. I have some 9V
> devices that could use the changeout too. Recommendations?
 
** Don't try any of them in smoke alarms.

Use only alkalines for that.
 
 
..... Phil
Abandoned_Trolley <fred@fred-smith.uk>: Feb 15 12:49PM

On 14/02/2021 19:47, Witherspoon wrote:
> ...I don't see 9V Eneloops, unless I am mistaken.  I have some 9V
> devices that could use the changeout too.  Recommendations?
 
 
There plenty to choose from on eBay
 
If you have a "smart" charger and want to stick with it, there are NiMH
cells out there with capacities up to 900mAH which could be used with
the same charger - like this:
 
https://www.ebay.co.uk/itm/PP3-MN1604-9V-Rechargeable-900mAh-Ni-MH-Battery/193757257679
 
 
I believe Charlie+ is correct is saying that if you want to use
rechargeable Li-ion cells, you will need a different charger. If you
stick them in a "normal" charger" it will just tell you that you have a
dud cell. I have seen them with capacites up to 800mAH
 
 
Alternatively, there are some Li-ion cells out there which have a built
in charger, and a USB socket on the base, which means that they could be
charged in situ ?
 
like this:
 
https://www.ebay.co.uk/itm/PP3-9V-Rechargeable-Batteries-USB-680mA-6f22-9volt-Recharge-Lithium-ion-Battery/143784853806
 
I would be interested to hear from anybody who has any of these.
 
 
Out of interest, you may like to note that I have a couple of Uniross
NiCD PP3 cells, which must be at least 10 years old, but seem to still
work ok - the downside is that the capacity is only 120mAH, but thats
enough for a few hours service on wireless microphone system.
 
The main point being that all of these current rechargeable solutions
offer at least 4 or 5 times the capacity of the originals, so theres no
need to even think about buying something with a capacity of only 200mAH
 
Also, dont forget that the original "dumb" chargers had insanely low
constant current charge rates - I have one which runs at only 11mA. At
that rate it would take at least a week to charge one of the latest
generation NiMH cells
 
AT
Charlie+ <charlie@xxx.net>: Feb 15 07:14AM

On Sun, 14 Feb 2021 14:47:06 -0500, Witherspoon <ws194@aol.com> wrote as
underneath :
 
>...I don't see 9V Eneloops, unless I am mistaken. I have some 9V
>devices that could use the changeout too. Recommendations?
 
Lidl do them on occasion 200mAh (not Eneloop - that is a brand name), or
look for PP3 Ready to use rechargeables on eBay. But best of all are the
600mAh EBL Lithium-ion ones but you need a new different charger for
those - Great longevity but 8.4 top voltage! . C+
Phil Allison <pallison49@gmail.com>: Feb 14 11:47AM -0800

Peter Wanker is a MORON.
 
=======================
 
> Were the OP to put *Service Manual* into that link, it would come up.
 
 
** Fuck off you tenthwit Google monkey.
 
BEWARE - of all ham radio guys.
 
 
..... Phil
Adrian Caspersz <email@here.invalid>: Feb 14 08:13PM

On 14/02/2021 11:19, Bo-Lennart wrote:
I friend of my, living far away from me, told me over the phone that he
want me to look to this "death" scope. So I like to be prepared when the
scope comes into my hand.
 
"Death" scope does not sound so inviting.
 
When you turn it on, make sure you are wearing rubber boots, gloves and
you are standing on a good rubber mat!
 
--
Adrian C
Bo-Lennart <bo-lennart.karlsson@telia.com>: Feb 14 01:08PM -0800

söndag 14 februari 2021 kl. 21:13:28 UTC+1 skrev Adrian Caspersz:
> you are standing on a good rubber mat!
 
> --
> Adrian C
Thank You, Adrian....
I will think of that, when I get my hands on that scope. Safety always come first.
 
Bo-Lennart Karlsson
SWEDEN
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