UK D4R batteries

Bought a UK D4R torch a while ago, and am quite pleased with it
overall. What does bother me slightly is how long the NiCad battery
pack takes to charge (~12 hours).

A second battery pack is quite expensive, so I'm wondering whether
there is any good reason not to use standard rechargable D-cells.
Aside from being cheaper, with a good charger they should charge
quicker, too.

Anyone tried this, or know why it would/wouldn't work?

Cheers,
Marc

On Wed, 24 Sep 2003 23:45:14 +0100, Pete S. <> wrote:

>On Wed, 24 Sep 2003 22:10:49 +0000 (UTC), Marc Labuhn
><marc_labuhn@btinternet.com> wrote:
>
>>Bought a UK D4R torch a while ago, and am quite pleased with it
>>overall. What does bother me slightly is how long the NiCad battery
>>pack takes to charge (~12 hours).
>>
>>A second battery pack is quite expensive, so I'm wondering whether
>>there is any good reason not to use standard rechargable D-cells.
>>Aside from being cheaper, with a good charger they should charge
>>quicker, too.
>>
>>Anyone tried this, or know why it would/wouldn't work?
>

And if you replace the battery pack with "D" cells be aware that you
won't have the Hydrogen absorbant granules incorporated into the UK
pack. IIRC Hydrogen explodes if it is in the range 4% to 96% in Air.
This effect is usually detrimental to the lamp..........

The standard battery pack works fine. Live with it!

Pete S.

On Wed, 24 Sep 2003 23:52:17 +0100, Pete S. <> wrote:

>And if you replace the battery pack with "D" cells be aware that you
>won't have the Hydrogen absorbant granules incorporated into the UK
>pack. IIRC Hydrogen explodes if it is in the range 4% to 96% in Air.
>This effect is usually detrimental to the lamp..........

Yes, I can see how that might be a problem.

Guess I was trying to solve a problem that doesn't really exist...

Cheers
Marc

On Wed, 24 Sep 2003 23:52:17 +0100, wrote:

> And if you replace the battery pack with "D" cells be aware that you
> won't have the Hydrogen absorbant granules incorporated into the UK
> pack. IIRC Hydrogen explodes if it is in the range 4% to 96% in Air.
> This effect is usually detrimental to the lamp..........

Aren't the granules mounted on the PCB? They were on the UK400.

Jason

--
http://www.scuba-addict.co.uk/ for Aussie diving reports including
Stradbroke Island, Terrigal, Jervis Bay and Portsea

Marc Labuhn <marc_labuhn@btinternet.com> wrote in message news:<45c4nv4fs4g69cjjumho1t1n85bn0r9e5d@4ax.com>. ..
> On Wed, 24 Sep 2003 23:52:17 +0100, Pete S. <> wrote:
>
> >And if you replace the battery pack with "D" cells be aware that you
> >won't have the Hydrogen absorbant granules incorporated into the UK
> >pack. IIRC Hydrogen explodes if it is in the range 4% to 96% in Air.
> >This effect is usually detrimental to the lamp..........
>
> Yes, I can see how that might be a problem.
>
> Guess I was trying to solve a problem that doesn't really exist...
>
> Cheers
> Marc

D4R battery pack is long enough for two good dives.

I have recently started using a D8R 30W bulb in my one and I still get
a really good burntime of about 45 minutes.

I am looking at getting a new battery pack of nimh D cells at 9000mah
so doubling the burn time. Also I can recharge them when I want unlike
the standard nicad pack.

Not sure about the hydrogen granules, I dropped my battery pack last
year. All I have in mine is 4 d cells 4400mah nicads soldered
together.

"Adam Walker" <adam.walker2@ntlworld.com> wrote in message
news:44979082.0309250323.12ee594b@posting.google.c om...
> Marc Labuhn <marc_labuhn@btinternet.com> wrote in message
news:<45c4nv4fs4g69cjjumho1t1n85bn0r9e5d@4ax.com>. ..
> > On Wed, 24 Sep 2003 23:52:17 +0100, Pete S. <> wrote:
> >
> > >And if you replace the battery pack with "D" cells be aware that you
> > >won't have the Hydrogen absorbant granules incorporated into the UK
> > >pack. IIRC Hydrogen explodes if it is in the range 4% to 96% in Air.
> > >This effect is usually detrimental to the lamp..........
> >
> > Yes, I can see how that might be a problem.
> >
> > Guess I was trying to solve a problem that doesn't really exist...
> >
> > Cheers
> > Marc
>
> D4R battery pack is long enough for two good dives.
>
> I have recently started using a D8R 30W bulb in my one and I still get
> a really good burntime of about 45 minutes.
>
> I am looking at getting a new battery pack of nimh D cells at 9000mah
> so doubling the burn time. Also I can recharge them when I want unlike
> the standard nicad pack.
>
> Not sure about the hydrogen granules, I dropped my battery pack last
> year. All I have in mine is 4 d cells 4400mah nicads soldered
> together.

in the UK400 there on the circuit board for the reflector etc

"Jason" <jason.usenet.nospam@ntlworld.com> wrote in message
newsan.2003.09.25.08.31.27.514583@ntlworld.com.. .
> On Wed, 24 Sep 2003 23:52:17 +0100, wrote:
>
> > And if you replace the battery pack with "D" cells be aware that you
> > won't have the Hydrogen absorbant granules incorporated into the UK
> > pack. IIRC Hydrogen explodes if it is in the range 4% to 96% in Air.
> > This effect is usually detrimental to the lamp..........
>
> Aren't the granules mounted on the PCB? They were on the UK400.
>
> Jason
>
> --
> http://www.scuba-addict.co.uk/ for Aussie diving reports including
> Stradbroke Island, Terrigal, Jervis Bay and Portsea
>

On the same note the difference in price between a D4R and a non
rechargeable D4 is enough to purchase a good set of NiMH batteries plus
charger and still have change.

Nicads have had their day.

"Richard" <richard4572@hotmail.com> wrote in message
news:bkuqr1$5uciq$1@ID-89874.news.uni-berlin.de...
>
> On the same note the difference in price between a D4R and a non
> rechargeable D4 is enough to purchase a good set of NiMH batteries plus
> charger and still have change.
>

I agree. I have a UK400 which I now use with 4x Uniross D 5500mAh batteries.
I get about 2 hours on the standard lamp which came with it.

Is there a more powerful lamp I can use in the UK400?

Mark.

--
------------
E-Mail is mark wayt at# talk21 dot com
(remove all usual stuff!)

On Thu, 25 Sep 2003 13:02:25 +0100, "beanie"
<nospam@diving.ukdiver.com> wrote:

>

>> I am looking at getting a new battery pack of nimh D cells at 9000mah
>> so doubling the burn time. Also I can recharge them when I want unlike
>> the standard nicad pack.
>>
>> Not sure about the hydrogen granules, I dropped my battery pack last
>> year. All I have in mine is 4 d cells 4400mah nicads soldered
>> together.
>
>in the UK400 there on the circuit board for the reflector etc
>

I did have an 800R that had granules within the battery pack.

Pete S.

On Thu, 25 Sep 2003 14:33:13 +0100, "Richard"
<richard4572@hotmail.com> wrote:

>On the same note the difference in price between a D4R and a non
>rechargeable D4 is enough to purchase a good set of NiMH batteries plus
>charger and still have change.

There are other differences between the D4 and D4R though, I know the
bulbs are different and I thought the reflector/PCB unit was as well
but not certain

Pete
diving 'at' melbourne 'dot' me 'dot' uk