Look what the postman brought..

soundwave

Esteemed Pedelecer
May 23, 2015
16,863
6,488

Gubbins

Esteemed Pedelecer
bga said to use these cells for a flash light.

http://www.bga-reworking.co.uk/e-bike-batteries/panasonic-ncr18650b-3400mah-li-ion-battery-flat-top-unprotected.html

there a few quid more than on ebay but you will get real ones.

the pack says to recharge when its flat when the light flashes but i have not run the cells down yet so no idea if it will cut the power or not at 2.5v

it does cut the power when the cells are charged tho with the wall adaptor.
Imagine you are talking to child.. will 4 of these fit in the adapter you recommended and charge with my charger?
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,863
6,488
yes but you cant let the cells go below 2.5v or you will damage them.

charged there 4.2 or bit under and have just got my 18650 charger from china.
 

Gubbins

Esteemed Pedelecer
yes but you cant let the cells go below 2.5v or you will damage them.

charged there 4.2 or bit under and have just got my 18650 charger from china.
I don't really want any messing about measuring volts and stuff . I just want one I can plug in and use.. plus it works out at £30 which is a lot just for a battery.
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,863
6,488
its why i got one of these.
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,863
6,488
ill charge the cells up i have and the run them to there flat 2.5v see if the pack cuts out or not or just shows a flashing light.
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,863
6,488
i never done it lol was like it when i ripped the pack apart ;)
 
  • :D
Reactions: IR772

EddiePJ

Esteemed Pedelecer
Jul 7, 2013
4,632
4,013
Crowborough, East Sussex
www.facebook.com
Imagine you are talking to child.
On that basis, why after having spent in the region of 5k on bikes are you dicking around trying to cobble together a light, when for about £60.00+ you can have something decent? Think about it, SW has spent near on that amount, and still won't have a light that compares to say the BT20.

Just buy something decent to begin with, and get on with riding.

As for the comments about the cheapo battery packs, perhaps I have been lucky, but I spend roughly 2,000 miles a year riding off road after daylight hours, and my 2 Ebay cheapo six cell packs are now on their third year of use. I don't do anything special with them, just use them, run them flat, stick them on charge, often forgetting them, and that is about it. No special treatment, no waterproof casing, just used and abused. In some ways, they have proved irritatingly reliable.

I have also bought one of the 1 Cree lights to use as a back to the Fenix, and first impressions haven't left me leaping around in awe of performance, but then I was never expecting much to begin with, so no big deal there. It will be fine as an emergency back up light for off road use or for main ride use on road, but as an off road light forget it. It is just the usual Cree spot beam that just casts shadow over objects, and does nothing in the way of enhancing all important edge vision.
 
Last edited:

Gubbins

Esteemed Pedelecer
On that basis, why after having spent in the region of 5k on bikes are you dicking around trying to cobble together a light, when for about £60.00+ you can have something decent? Think about it, SW has spent near on that amount, and still won't have a light that compares to say the BT20.

Just buy something decent to begin with, and get on with riding.

As for the comments about the cheapo battery packs, perhaps I have been lucky, but I spend roughly 2,000 miles a year riding off road after daylight hours, and my 2 Ebay cheapo six cell packs are now on their third year of use. I don't do anything special with them, just use them, run them flat, stick them on charge, often forgetting them, and that is about it. No special treatment, no waterproof casing, just used and abused.

I have also bought one of the 1 Cree lights to use as a back to the Fenix, and first impressions haven't left me leaping around in awe of performance. It will be fine as an emergency back up, or for on road use, but as an off road light, forget it.
Actually I did.. I spent £160 on 2 hope one vision lights and the £11 cree light is better than both hopes put together. Just the battery doesn't last long.
 
  • Like
Reactions: EddiePJ

Gubbins

Esteemed Pedelecer
You need to run a supply from your bike battery (usually easily done) and then use a light that will accept the correct voltage, or use a buck converter to power whatever light you wish.
You make that sound so simple.... there are no exposed wires or sockets anywhere on my battery and I would hesitate to mess with them if there were. There is a usb out on the intuvia display but I doubt that's would power a decent light. So speaking for the electrically inept what you suggest just isn't on the table
 

EddiePJ

Esteemed Pedelecer
Jul 7, 2013
4,632
4,013
Crowborough, East Sussex
www.facebook.com
Why does everyone dick about with auxiliary battery packs when you've got huge bike batteries from which to power your lights?

Fair point, and in many cases that is probably the way to go. :)

I'm quite happy as things are though. :)

Phill, just a word of caution. You could risk loosing the warranty on the two bikes if you do opt for a non factory supplied hard wired system, so check that aspect of things carefully first.
 

danielrlee

Esteemed Pedelecer
May 27, 2012
1,392
720
Westbury, Wiltshire
torquetech.co.uk
You make that sound so simple.... there are no exposed wires or sockets anywhere on my battery and I would hesitate to mess with them if there were. There is a usb out on the intuvia display but I doubt that's would power a decent light. So speaking for the electrically inept what you suggest just isn't on the table
It's simple enough to learn. If you have the will, you will find a way.
 

soundwave

Esteemed Pedelecer
May 23, 2015
16,863
6,488
well for near 60 quid you get 4 of the best cells you can buy.3400ma
a charger you can charge near any battery in.
18000lm light
and a case with high output usb socket for the camera/phone.
 

Gubbins

Esteemed Pedelecer
Fair point, and in many cases that is probably the way to go. :)

I'm quite happy as things are though. :)

Phill, just a word of caution. You could risk loosing the warranty on the two bikes if you do opt for a non factory supplied hard wired system, so check that aspect of things carefully first.
Oh don't worry... absolutely no chance I or anyone else will be delving in....
 
D

Deleted member 4366

Guest
You make that sound so simple.... there are no exposed wires or sockets anywhere on my battery and I would hesitate to mess with them if there were. There is a usb out on the intuvia display but I doubt that's would power a decent light. So speaking for the electrically inept what you suggest just isn't on the table
Phil, It really is simple. I don't understand why people are recommending all these other options.

You buy the light that I recommended. It costs £16, comes with battery and charger. You fit it to your bike, charge it and live happily ever after. It really is that simple!

Ask Leigh if he's happy. If he is, there's no reason you shouldn't be.

http://www.ebay.co.uk/itm/Tactical-Hunting-3000LM-CREE-XM-L2-LED-Cycling-Headlight-Bike-Bicycle-Head-Lamp-/151886495410?hash=item235d23feb2:g:O9wAAOSwIwhWSfgH
 
  • Agree
Reactions: IR772 and LeighPing

Gubbins

Esteemed Pedelecer
As things stand I have a box full of lights and don't really want any more.
The new fly 12 should be adequate for the small amount of road riding I am likely to do after dark, and the 2 crees and 2 hopes more than cover the offroad. I bought the hopes because they use AA nimh and I can carry spares , but then i heard about the cree lights..
 
Last edited:
  • Informative
Reactions: LeighPing