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-   -   The P7 Flashlight Thread (https://www.bikeforums.net/electronics-lighting-gadgets/464765-p7-flashlight-thread.html)

Unknown Cyclist 04-09-09 06:43 AM


Originally Posted by daven1986 (Post 8696609)
that is a bit dodgy. I think I am going to try to get the batteries and charger from a UK supplier - it may cost a bit more but at least I can complain to them if something like that happens.

What do people think of this one: http://www.caving-gear.co.uk/show_product.asp?id=790

thanks

It's exactly the same charger as DX sells for £5 less with free p&p.

It's exactly the same charger that DX sells and many people are using with no problems and have been for a long time.

You'll be £5 + £5 p&p down initially and if it goes wrong you'll have to pay to return it. I can't see how you can benefit from paying more for the same item. It would be cheaper to buy from DX and buy a replacement from DX if you ever need one.

Try to bear in mind that it's very likely that much, much less than 1% of buyers have expressed concerns about these chargers and that's mainly paranoia as they haven't had problems, but are just concerned they might have.

Reliability will be the same regardless.

:)

daven1986 04-09-09 06:57 AM

hmm I guess you are right. Well I'll just have to make sure I keep an eye on it - and take the battery out when it is done!

Unknown Cyclist 04-09-09 07:35 AM


Originally Posted by daven1986 (Post 8696824)
hmm I guess you are right. Well I'll just have to make sure I keep an eye on it - and take the battery out when it is done!

:)

I'm not trying to be 'right', If you want to pay £20 for a charger that costs £9 inc p&p and you believe that benefits you, then that's ok.

DX sells thousands of these chargers and I've searched for reports of failure but can't find any, I'm using one, so are several of my friends and I know a lot of people on here are using them as well - I would never knowingly make a poor recommendation.

Take the reports of high voltages with a pinch of salt, most of them are people measuring the no load voltage of the charger - which is about as entirely irrelevant as it is possible for anything to ever be.

Considering that DX sells worldwide and are not the only retailer, the voltage measurers can't compromise more than 0.001% of total sales - and they are only casting aspersions anyway.

The only real test would be to have a WF-139 and a 'better' charger alongside each other and to put a large number of batteries through each, a lot of times and then to measure the end capacity of each battery.

Bearing in mind the number of times a battery gets charged a year, if you aren't charging daily it could be 3, 4 or 5 years before a drop of even 10% of capacity occurs (if it ever did - which I doubt).

Is this such a huge issue on a $5 battery ?

In any case, nothing has been proved, only alleged.

The testing I've seen that has been presented as 'evidence' is mostly to a poor standard and several important relevent facts seem to have frequently been ignored.

I've been criticised for joking about the validity of the 'testing' but as the problem is pure conjecture I really believe my point is valid. Unless a significant number of WF-139 failures are suddenly reported, this paranoia is about as sensible as being scared of the dark.

:)

daven1986 04-09-09 08:00 AM

you make a very good point, which has reassured me. So thanks for that :)

Unknown Cyclist 04-09-09 08:03 AM


Originally Posted by daven1986 (Post 8697169)
you make a very good point, which has reassured me. So thanks for that :)

Back to P7 torches ?

;)

daven1986 04-09-09 08:09 AM

yep back to the torches :D

(although which charger is recommended?
http://www.dealextreme.com/details.dx/sku.12162
or
http://www.dealextreme.com/details.dx/sku.1251

and also can I just use a uk cable in them?
that is the last charger question - I promise!)

thanks

Unknown Cyclist 04-09-09 08:11 AM

I have the WF-139 and it doesn't come with a UK plug, I use an adaptor.

However, you can always cut the plug off and fit a normal 3 pin, just make sure you use a low value fuse.

:)

daven1986 04-09-09 08:12 AM

cool thanks :) might find a cheap adaptor on the 'bay.

Unknown Cyclist 04-09-09 08:18 AM

The SoShine SC-S1 Universal Li-Ion 2-Channel Digital Battery Charger looks ok and I'll probably buy one at some point.

It's interesting that it has different amps for different channels


Channel 1 (slot 1 and 2): 1*500mA or 2*250mA charging current
Channel 2 (slot 3 and 4): 1*1200mA or 2*600mA charging current
The minimum current output is 500mA and the max is 1700mA.

I'm not sure the 12V car adaptor will be a great deal of use as you'll need to have the engine running to supply enough power (if you want the car to run later).

I guess you could charge your batteries for 'free' on long journeys....

:)

daven1986 04-09-09 08:20 AM

so does that mean that it'll charge a 2400mA battery in 2 hours in slot 3?

Unknown Cyclist 04-09-09 08:22 AM


Originally Posted by daven1986 (Post 8697276)
cool thanks :) might find a cheap adaptor on the 'bay.

http://www1.dealextreme.com/producti...09_3_small.jpg

I've got several of these:

http://www.dealextreme.com/details.dx/sku.2709

They work perfectly and although the 2 pin plug isn't fused, it is moulded on which is safer and why I use adaptors instead of cutting the plugs off.

daven1986 04-09-09 08:24 AM

oh nice, that'll do :) a bit cheaper than ebay too.

Unknown Cyclist 04-09-09 08:28 AM


Originally Posted by daven1986 (Post 8697326)
so does that mean that it'll charge a 2400mA battery in 2 hours in slot 3?

Or slot 4.

Not quite 2 hours as the voltage might start low and then ramp up and will probably drop at the tail end of the charge, so maybe 2 hours + 10% - then again, it depends on the true capacity of the battery and how empty it is......

daven1986 04-09-09 08:33 AM

nice, that is a pretty decent charge time. 2 batteries roughly 4 hours ... not bad. I'd need 9 batteries though if I go the 2 torch route + tail light. Hmm maybe 2 chargers is a good plan, the soshine and the ultrafire.

ggg300 04-09-09 03:56 PM

I made an order for a buddy. And he has not received light. He got his charger in one box, then later his batteries in another,...but no light and its been a 2 months going on 3.

How can I get him his light faster?

From DE

Unknown Cyclist 04-09-09 04:06 PM

What torch is it ?

Check and see whether it is in stock.

Log into your account, go to the item and click on 'contact us' and then on 'Customer Service Express' that will raise a ticket.

Or you can try the live help.

:)

daven1986 04-10-09 12:10 PM

http://www.probikekit.com/display.php?code=M1215

just found this which would be really good for holding the bigger torches - a lockblock on each bit :D

will be getting some I think!

Unknown Cyclist 04-10-09 01:25 PM

This one is very good for larger torches (2 x 18650):

http://www1.dealextreme.com/producti...42_4_small.jpg

http://www.dealextreme.com/details.dx/sku.15642 and much cheaper than 2 lockblocks and that plastic mount....

daven1986 04-10-09 01:53 PM

that doesn't look too bad, some reviews say it is pretty hard to get on the handlebars though due to the grip not opening enough.

Unknown Cyclist 04-10-09 01:55 PM


Originally Posted by daven1986 (Post 8706144)
that doesn't look too bad, some reviews say it is pretty hard to get on the handlebars though due to the grip not opening enough.

Probably depends on bar size, it fits mine perfectly :D

daven1986 04-10-09 02:06 PM

do you have flat bars or drops?

Unknown Cyclist 04-10-09 02:08 PM


Originally Posted by daven1986 (Post 8706248)
do you have flat bars or drops?

Both ;)

daven1986 04-10-09 02:31 PM

cool, well that sounds good then - I have drops on my bikes (although one is a convert so it has thinner bars anyway!)

Unknown Cyclist 04-10-09 02:44 PM


Originally Posted by daven1986 (Post 8706454)
cool, well that sounds good then - I have drops on my bikes (although one is a convert so it has thinner bars anyway!)

I use a System EX computer and headlight mount on the racer.

I don't on the flatbar tourer because I've got plenty or room atm as it hasn't got a computer on.

I'll fit a System EX computer and headlight mount on the tourer as well when I get a computer for it.

They are very good.

:)

I'll try that torch mount on my race bars.

RepWI 04-10-09 02:47 PM


Originally Posted by Unknown Cyclist (Post 8705975)
This one is very good for larger torches (2 x 18650):

http://www1.dealextreme.com/producti...42_4_small.jpg

http://www.dealextreme.com/details.dx/sku.15642 and much cheaper than 2 lockblocks and that plastic mount....

I bought three of these so I could easily swap my P7's from one bike to another. As it turns out, the screw that tightens the light to the mount is not really set up as a quick release. Do you know of a solution? TY

Unknown Cyclist 04-10-09 02:58 PM


Originally Posted by RepWI (Post 8706528)
I bought three of these so I could easily swap my P7's from one bike to another. As it turns out, the screw that tightens the light to the mount is not really set up as a quick release. Do you know of a solution? TY

Buy more P7s ?

AEO 04-10-09 06:02 PM

I would just spend the money on a set of 90 degree twofish lockblocks.
$16 for a set of 3 from 4sevens.

JinbaIttai 04-10-09 09:18 PM


Originally Posted by Unknown Cyclist (Post 8706592)
Buy more P7s ?

lol :lol::lol::lol:

Cyclist0383 04-11-09 12:22 AM


Originally Posted by RepWI (Post 8706528)
I bought three of these so I could easily swap my P7's from one bike to another. As it turns out, the screw that tightens the light to the mount is not really set up as a quick release. Do you know of a solution? TY

Two Fish Cycloblocks are a good solution for fatter lights. I'm quite happy with mine.

http://www.batteryjunction.com/twofish-cycloblocks.html

socalrider 04-12-09 06:39 PM

Just saw that Ultrafire has a new 18650 - 3000 mah battery available.. I also read that Panasonic has a 3000mah which is a little harder to find..

http://search.ebay.com/search/search...tle=18650+3000


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