Battery Sale!

Sonido · 9647

0 Members and 2 Guests are viewing this topic.

Offline Sonido

  • Jr. Member
  • **
    • Posts: 31
on: December 04, 2013, 08:34:57 PM
I'm loving the Quickie so far! Using it with Emotiva MiniX a-100 to HE-500 headphones.

Check out my impressions here: https://www.head-fi.org/t/551345/hifiman-he-500-he-as-in-high-end-impressions-and-feedback/9645#post_10035084

Anyways, I was hasty to buy batteries to power the baby up, I ended up spending $22 at the local pharmacy for a single set of batteries.

But I just saw this great battery sale that I wanted to share: Sony STAMINA PLUS Alkaline Batteries - http://www.woot.com/offers/sony-stamina-plus-batteries-5-sizes-1

$12.99 for a pack of 12 D cell or 9V.
« Last Edit: December 04, 2013, 09:13:16 PM by Sonido »



Offline Sonido

  • Jr. Member
  • **
    • Posts: 31
Reply #1 on: December 04, 2013, 08:57:13 PM
Speaking of batteries, does anyone know if the D cells and the 9V drain equally? Do I end up replacing all at once?



Offline corndog71

  • Sr. Member
  • ****
    • Posts: 593
Reply #2 on: December 05, 2013, 02:43:17 AM
I think the D cells go faster.

The world was made for those not cursed with self-awareness.

Rob


Offline Grainger49

  • Hero Member
  • *****
    • Posts: 7175
Reply #3 on: December 05, 2013, 02:53:51 AM
I don't even own a Quickie but bought AA, AAA and 9V.

I get the daily Woot! and had been considering it anyway.  These are good prices.



Offline mortron

  • Jr. Member
  • **
    • Posts: 44
Reply #4 on: December 09, 2013, 06:29:13 PM
My four 6xAA batery packs cost me $8 and I got 48 AA for $10.... not sure how long its going to last... last I checked it was just about 34v after quite a few months IIRC. I have already had to swap out my D cells about a month or so ago. Ill never buy $$$ 9V batteries again. The cheap AA are too plentiful.



Offline Paul Joppa

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 5847
Reply #5 on: December 09, 2013, 07:48:18 PM
Speaking of batteries, does anyone know if the D cells and the 9V drain equally? Do I end up replacing all at once?
Based on the data sheets for the batteries, they should last about the same time, roughly 200 hours.

In the real world, it seems that batteries in perfect condition that might meet data sheet specs are pretty uncommon. I suspect @mortron has a good idea, in that AA's are so widely used, they are both cheaper per watt-hour, and probably fresher, than any other size. You can parallel a similar number, half for each tube, to get a similar-lasting filament battery. You may have to pay more for the battery holders than the Quickie though!

Paul Joppa


Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19871
Reply #6 on: December 11, 2013, 07:33:29 AM
I've also found that the green and black batteries from R@dio Sh@ck will die rather immediately right after you start using them.  I used a fresh set of four in my Quickie for about 10 minutes, then pulled them out and set them on the counter to go do some tweaking to the circuit.  When I got around to putting them back in 3 weeks later, all four were completely dead. 


Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Sonido

  • Jr. Member
  • **
    • Posts: 31
Reply #7 on: December 13, 2013, 07:07:22 AM
Woot sale is back till 12/16!
https://tech.woot.com/plus/batteries-etc



Offline Grainger49

  • Hero Member
  • *****
    • Posts: 7175
Reply #8 on: December 13, 2013, 10:19:06 AM
I got my shipping notice this morning.



Offline mcandmar

  • Hero Member
  • *****
    • Posts: 1599
  • Not all engineers are civil
Reply #9 on: December 13, 2013, 05:27:00 PM
Any reason why nobody is using rechargeables?

M.McCandless


Offline corndog71

  • Sr. Member
  • ****
    • Posts: 593
Reply #10 on: December 14, 2013, 04:01:22 AM
I use them for the 36vdc.  Been wanting to get rechargeable D cells but they and the appropriate charger are expensive.

The world was made for those not cursed with self-awareness.

Rob


Offline STURMJ

  • Sr. Member
  • ****
    • Posts: 279
Reply #11 on: December 14, 2013, 06:53:59 AM
I have rechargeable 9v(s) too.



Offline Sonido

  • Jr. Member
  • **
    • Posts: 31
Reply #12 on: December 14, 2013, 08:07:09 AM
I've heard rechargeables don't charge up to the max 1.5v or 9v. Might be okay if you have the PJCCS upgrade.



Offline Paul Joppa

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 5847
Reply #13 on: December 14, 2013, 09:12:27 AM
The tubes and the amp are designed around 1.25v and 30v, expecting a range of 1.0v-1.5v and 24v-36v over the battery life. So NiCd and NiMH at 1.20 volts/cell and not losing voltage as they drain are about perfect.

Paul Joppa


Offline Mike B

  • Full Member
  • ***
    • Posts: 248
Reply #14 on: December 16, 2013, 05:09:15 PM
I ordered up (3) eight AA holders and am going to do the 24 piece AA conversion too.  They were not expensive.

http://www.tmart.com/8Pcs-AA-Cells-Battery-12V-Clip-Holder-Box-Case-Black_p127663.html?fixed_price=us_us&utm_source=base&utm_medium=organic&utm_term=88006383&utm_campaign=product&gclid=CLDB5-OwtrsCFTJo7AodOkMApQ

Good idea on the AA's, thanks!

Far away from the bleeding edge