Joe Analssandrini wrote:
In my Grundig Satellit 800 (a "battery-eater") I use C. Crane NiMH "D"
size batteries - they are rated 9000 mAH. They cost $9.95 each here in
the US which is rather high now. (When I bought them several years ago,
they were "the only game in town.") There are others which have ratings
up to 11000 mAH and which cost less. C. Crane's Quick Charger, which
can charge all sizes of NiCads and NiMHs, sells for $39.95 in the US.
There are now other chargers which are at least as good and possibly
better for the same or less money. You'd have to check what is
available locally for you.

I use Maha, but the NiMH D cells are awfully expensive, if I may say so,
both the 7000 and the 11000. On the other hand, alkaline D cells are pretty
pricey too.

The C Crane Quick charger is old but has the advantage that it charges
flat-dead batteries where newer chargers refuse to recognize them, which
you need if you have run one dead accidentally. Having started the charge
in the old C Crane, switch over to a newer charger. Also it has a voltmeter
that's handy, in case you need to test which battery is which or something.

--
Ron Hardin


On the internet, nobody knows you're a jerk.

In article , "John Plimmer"
wrote:

I recently got a Redsun RP2100, the users view of which I previously posted
on this group.
It has the facility to use rechargeable batteries, something of which I know
nothing about.
It will charge these batteries for twelve hours.
I want to use "D" cells but don't know which rechargeables to buy.
My local store can order me NiCad's or NiMH - I don't know anything about
that.
What's the difference?

Also there are different numbers like 1500 or 2500 which seems to mean how
long they hold the charge.
I would be grateful for advice from you highly knowledgeable fella's as to
what I should buy.
As they seem to be very expensive, perhaps I should just stick to ordinary
batteries and forget about the rechargeables?

I got a set of Energizer "D" NiMH batteries the first day I got my 2100.
They're only the 2500 mah type but they seem to last for a long time.
In retrospect I could have been better off with AAs as there is only a
little more capacity and they cost about twice as much. Also I have a
AA-AAA charger
but only a NiCad charger for the other sizes. The radio charges the batteries
OK I guess but never indicates more than 2 out of three bars on the
battery level meter. On the bright side, the radio rocks! My Sangean,
Halicrafters and Zenith are no longer used.

Norm

On 2006-10-14 13:54:50 -0400, "John Plimmer" said:

I recently got a Redsun RP2100, the users view of which I previously
posted on this group.
It has the facility to use rechargeable batteries, something of which I
know nothing about.
It will charge these batteries for twelve hours.
I want to use "D" cells but don't know which rechargeables to buy.
My local store can order me NiCad's or NiMH - I don't know anything about that.
What's the difference?


Get NiMhs and a good charger. See http://www.thomasdistributing.com/
for both, excellent fast shipping.

The higher the Mah number the long they will last. Higher is better.
NiMhs can be recharged HUNDREDS of times, I've been using them ffor
years, I use them in everything except smoke/C02 alarms and clocks. I
use them in my Panasonic RF-B65 SW receiver.

Johnny Borborigmi wrote:

I use them in everything except smoke/C02 alarms and clocks.


Smart move, especially in the smoke and CO alarms. A regular battery has
a different discharge curve and will give you lots of warning before
it's inoperative.

A rechargeable nicad or NiMh may go dead while you are out of the house
and don't the hear the few warning beeps.



mike

m II wrote:
Johnny Borborigmi wrote:

I use them in everything except smoke/C02 alarms and clocks.



Smart move, especially in the smoke and CO alarms. A regular battery has
a different discharge curve and will give you lots of warning before
it's inoperative.

A rechargeable nicad or NiMh may go dead while you are out of the house
and don't the hear the few warning beeps.

I noticed a similar problem when I use NiMHs in a portable scanner. The
battery voltage drops so fast at the end of their discharge cycle, the
scanner's low battery alarm only beeps once. It's easy to miss it if
you're not paying attention.

HFguy wrote:
m II wrote:
Johnny Borborigmi wrote:

I use them in everything except smoke/C02 alarms and clocks.



Smart move, especially in the smoke and CO alarms. A regular battery
has a different discharge curve and will give you lots of warning
before it's inoperative.

A rechargeable nicad or NiMh may go dead while you are out of the
house and don't the hear the few warning beeps.

I noticed a similar problem when I use NiMHs in a portable scanner. The
battery voltage drops so fast at the end of their discharge cycle, the
scanner's low battery alarm only beeps once. It's easy to miss it if
you're not paying attention.


I first noticed it in a digital camera. I learned that when the warning
light comes on, it really means it. Now!




mike

I have a Radio Shack Pro-91 Scanner.(I am listening to it right now,the
cops are on the trail of somebody,name of Latoya) It beeps for a long
time when the Ray O Vac Alkaline batteries get low. www.rigpix.com
cuhulin