Author Topic: What battery would be used in the usb power supply?  (Read 2080 times)

0 Members and 1 Guest are viewing this topic.

Offline Goophy629

  • Contributor
  • Posts: 27
  • Country: 00
What battery would be used in the usb power supply?
« on: March 29, 2013, 06:19:17 am »
As the title said.. I think Dave mentioned that he would use something like the 20C-discharge pilo pack for the PSU, but, when checking the project page(the µSupply) for any update, I see "Powered from 2 x 18650 Lithium Ion cells."  Actually, I do prefer 18650 more than lipo pack, unless Dave would implement something like a "flat clip" to hold the taps of the the battery pack instead of soldering, so changing/replacing battery wouldn't be a hassle...(yeah, lipo pack is much safer, but changing/replacing a lipo pack can really be a hassle, soldering/de-soldering, taping, padding, etc....)

Anyway, I know the thing wouldn't be available soon as Dave said during the recent live contest video...just wondering...

PS: if the info in the uSupply page is still right, then 2x18650 really doesn't seem good..I mean..the capacity...4~6 would be nicer, or maybe just fill up the space of the case lol~

PS2: this is my first post..and I somehow clicked the "Request another image" button....ouch..it refreshes the whole page rather than just the image....Well, I did copied before hitting any button as I know such things can happen... :phew:
« Last Edit: March 29, 2013, 07:24:43 am by Goophy629 »
 

Offline casper.bang

  • Frequent Contributor
  • **
  • Posts: 311
  • Country: dk
  • Pro SE, amateur EE.
    • BangBits
Re: What battery would be used in the usb power supply?
« Reply #1 on: March 29, 2013, 06:57:29 am »
I fly RC helis and the LiPo packs I use all typically have dean/T plugs, making replacement a snap.  Indeed, I'd use my high-perfomance charger meaning a complete recharge can happen in about 20min. Glad to hear others interested intthe uSupply, would be awesome for beginners and/or people desiring very low ripple.
 

Offline Goophy629

  • Contributor
  • Posts: 27
  • Country: 00
Re: What battery would be used in the usb power supply?
« Reply #2 on: March 29, 2013, 07:43:41 am »
Oh yeah, thanks for bringing up that, that would be perfect, though Dave might need to work around for fitting the odd shape of the plug into the PSU  ;D

I use my hobby charger for most of my batteries too as I can set the parameters how I want, though I lower the charging current most of the times to lengthen the life cycle.
 

Offline Pilot3514

  • Contributor
  • Posts: 28
  • Country: us
Re: What battery would be used in the usb power supply?
« Reply #3 on: March 29, 2013, 02:07:42 pm »
I too was wondering about that.  I was thinking about cost and availability. I see what I think are high capacity (2000+ mAh) cell phone batteries for under 5 USD.  I don't know if the prize is worth the chase to make the battery easily changeable in the field.

I was thinking that a MASS produced battery, such as a replacement batteries for iPhone, iPod, GPS or something, would have the best availability and price.  However, I could be wrong in that assumption.
I'm not cheap, I'm frugal
unlike those wasteful Scotch.
 

Offline casper.bang

  • Frequent Contributor
  • **
  • Posts: 311
  • Country: dk
  • Pro SE, amateur EE.
    • BangBits
Re: What battery would be used in the usb power supply?
« Reply #4 on: March 29, 2013, 02:55:03 pm »
RC LiPo's are also massproduced and you can get a good 2200mAh for less than US $10. Unlike the cellphone/tablet batteries, these would also allow higher discharge currents. Most are long slender sticks; I would simply construct a channel behind the casing, where the LiPo is attached with a wide band of velcro or so.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf