Anybody wrapped cells before?

[global_s]

I'd quite like a second battery pack for my lamp. Frustratingly, despite using 18650 cells, it still needs it's own charger due to them being wrapped. A spare set is 45 Euros. I can buy 4 top end protected Panasonic cells from Gear Best for ?16.

Has anyone every wrapped cells like this and how did you do it?

 

[global_s]

I've just done a copy URL from my Facebook, so let me know if the image doesn't show.

 

[stephen3591]

have alook at  www.mtbbatteries.co.uk  i built a 8 volt pack using his batterys

 

[maxf]

Bit of tin foil and cling film, what could go wrong !

 

[bograt]

Looks like heat shrink wrap. Not found it in those dimensions yet, anyone know about it?, let us know!.

 

[Les W]

http://cellpacksolutions.co.uk/online-shop/battery-assembly-parts/shrink-sleeves/page/2/ 

 

[sion]

I thought ?45 aprox ?32.50 was very good value for a 4 cell pack, I have made one in the past and soldering Li-ion is not something I would like to risk again! Another company I can think of charge ?65 for a very similar 4 cell pack, they are even using same same brand cells.

 

[ChrisJC]

What is not clear to me in the photo is whether the pack has a single protection circuit calibrated for four cells in series, or if each cell is individually protected.

Chris.

 

[royfellows]

What is not clear to me in the photo is whether the pack has a single protection circuit calibrated for four cells in series, or if each cell is individually protected.

Chris.

or no protection circuitry, overdischarge protection in the lamp, overcharge protection in dedicated charger