On Wed, 18 Nov 2020 22:42:22 +0000, PeterC
wrote:

On Wed, 18 Nov 2020 19:01:38 +0000, T i m wrote:

I tend to charge overnight, as I won't go
out and leave anything on charge, just in case.

I don't like leave things charging overnight because we *are* there
and asleep. I will leave some things charging when out (like the
YC4000 but typically only on the lowest settings and NiCad / NiMh.

This is in the bedroom, fairly close to the smoke alarm.

;-)

Taking 8h+ to
recharge AA cells probably isn't too risky.

Indeed and I make the same decision, along with noting that the spec
on the charger explicitly states that it's made out of non combustible
plastic etc.

I tested one of the batch of Amazon basics 10A NiMh D cells on my
iCharger (in a 3D printed 'high current' holder) the other day the
charged it on my Ansmann Energy 16 charger. It didn't seem to want to
indicate it was fully charged (theoretically taking at least 10 hours
at 1000mA) so I ended up putting it back on the iCharger to see what
that would do. It took an hour or so but then indicated it was
charged. Putting it back on the Ansmann, it then also indicated it was
charged after about an hour. So I'm hoping I just didn't give it
enough time and will be interested to see how the Ansmann copes with a
batch of 3 (xD's), assuming I ever actually discharge any in normal
use. They did all indicate fully charge when I first got them but that
was just a top-up. 'Technically' they suggest the highest capacity
charger can deal with is 9500mAh.

Along those lines, I came across a old fashioned but new torch the
other day (with a top handle and big reflector etc) that used the big
square battery 6V with springs (4R25). Looking around it suggested
that a similar torch with a xenon lamp would last for 7 hours on such
a battery but an LED replacement should last a lot longer. Then I
looked into seeing if I could 3D print a clip to take 4 x rechargeable
D cells as 1) I have quite a few and 2) using them would be more
flexible than the big square battery.

Then I found that such a thing already exists (4 x D to 4R25
converter) and you can sometimes get them with these bigger style
torches providing a battery choice option.

That said, the 4R25's can be bought quite cheaply, seem quite powerful
(10Ah?), seem to last a long time on the shelf and I've not found and
old one that has been flat / dead and leaked yet (but I guess they
might).

I've ordered some more 6V LED replacement lamps and with the 180
degree light pattern as these work better in such reflector lamps.

I have a more 'beam' orientated LED in my 4D Maglite as that better
suits my usage of it (and you do get some peripheral light in any
case).

Cheers, T i m