Supplemental battery pack

[fatblokish]

I find that the run time on my bike light (similar if not identical to http://www.ebay.co.uk/itm/5200LM-XM...804722?hash=item3ab6bae4b2:g:qOkAAOSwgNRV8qZv)

is a little over an hour. However I would like something closer to two hours.

Can I simply buy a new 4X18650 battery pack from fleabay and be assured that this will work OK with the charger and light in the above link (perhaps something like http://www.ebay.co.uk/itm/4x18650-B...232542?hash=item1c552f125e:g:z7QAAOSw~gRV2-IW).

ta

 

[numbnuts]

If it's the same voltage why not

 

[Smurfy]

Be careful with lithium batteries. When subjected to out of specification charging and discharging the results can be explosive. One of these batteries gone wrong could burn down your house.

https://www.youtube.com/results?search_query=lithium+battery+fire

 

[LocalLad]

It probably would be fine. I took the more direct approach and simply bought another, identical light. At those prices, it seemed easy enough, and I've now got a backup light in case the first goes, or to pop on the spare bike.

 

[tincaman]

It's the correct battery pack, but just more of the same, in that you will probably find the run times will be the same or worse.

 

[fossyant]

7 day shop and c&b seen sell the same batteries without the import issues as they are UK based

 

[fossyant]

Or you can buy a pannovo case and then get batteries from torchy on ebay

 

[tincaman]

^^ get your own battery case, then you can fit some quality individual batteries from the likes of Panasonic, Samsung, etc. Your current charger will also still charge the whole pack.

Torch the Battery Boy on Ebay is a good source http://www.ebay.co.uk/usr/big_f_d_dd

You will then get 2 hours plus on your run times.

 

[gbb]

The connector on the proposed extra pack looks the same.
Voltage...same, 8.4v
Notably, I have 4x18650 packs for my lights, but theyre 15v. Just the way theyre connected together.
The mAh is 8800 as opposed to 6400. That should'nt be a problem, it wuld just take longer to charge...anyone know better ?, that was always my assumption.

Just looked at Torch theBattery Boys page on ebay as suggested above, his prices look really good.

 

[tincaman]

Cant say I've ever come across a 15v pack before, you need to keep to the voltage you are currently using, it's possible that your light might work with the higher voltage or just as likely go pop.
Can recommend Torchy, he uses quality batteries