Author Topic: Properper Enclosing for LiPo Batteries  (Read 821 times)

0 Members and 1 Guest are viewing this topic.

Offline beeboopbeep

  • Contributor
  • Posts: 30
  • Country: ca
Properper Enclosing for LiPo Batteries
« on: August 23, 2017, 02:35:55 am »
Hi everyone,

I wanted to create a simple portable LED lamp that's rechargeable and opted out to use LiPo batteries instead of NiMH batteries because of costs: IC for recharging NiMH batteries cost between ~5 to ~10 CAD whereas LiPo recharging ICs cost ~2 CAD and it seems the battery capacity per dollar is similar for LiPo to NiMH. However, I am always told that LiPo batteries are dangerous and should be handled with care (although, you can probably argue that for all batteries).

I plan on making either a wood or acrylic body for the lamp and I was wondering if there is a proper enclosure method/structure for placing the portable LiPo batteries in the body. I'll probably carry this to outside to use in backyards and make it water resistant if time permits. I'm mostly worried about the battery moving around inside the body and if any special care such as cooling is needed. My initial thoughts for the LiPo enclosure was adding some soft padded tapes to help damp any movement when carrying this lamp around and having some sort of hinges holding it in place.

Thank you.
 

Offline sleemanj

  • Super Contributor
  • ***
  • Posts: 2455
  • Country: nz
  • Professional tightwad.
    • The electronics hobby components I sell.
Re: Properper Enclosing for LiPo Batteries
« Reply #1 on: August 23, 2017, 02:42:17 am »
If using 18650 cells (or other cylindrical metal cased cells) then they are pretty tough, just make sure they can't short out, and use protected cells.

If using pouch cells (or other soft-shell cells) then you need to think about puncture and crush protection, and use protected cells. 

NB: Protected cell means a cell which has a protection circuit on it to prevent over discharge (low volt), over charge (high volt) and over discharge current/short circuit, they do not typically protect against over current in the charging direction, only discharging. 
~~~
EEVBlog Members - get yourself 10% discount off all my electronic components for sale just use the Buy Direct links and use Coupon Code "eevblog" during checkout.  Shipping from New Zealand, international orders welcome :-)
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf