Become a Site Supporter and Never see Ads again!

Author Topic: Homebrew 80,000mA festival battery pack  (Read 2310 times)

0 Members and 1 Guest are viewing this topic.

Offline nobdy1977

  • Trade Count: (1)
  • Taperssection Newbie
  • *
  • Posts: 18
Homebrew 80,000mA festival battery pack
« on: May 30, 2015, 04:42:11 PM »
I have been meaning to post this up for a while.  When I put this together it cost me about $105, pricing and availability may have changed since then but I think it was still a good value.  I rolled over 17 hours at Lockin last year with 2 channels of phantom power on a DR-680, then came home and taped a few more shows before deciding I should probably charge up everything, just because.

I'm using eight 10,000mA rechargeable D-cells in a battery box.  The charger I'm using is slow, but it can be run off of a cigarette lighter and it can be used for other cells (I've put rechargeable AA's in my deck now and use the same charger).  One other nice thing about doing it this way, there is a good chance I can pick-up regular Duracells at a festival campground if need be.  The hardest part is checking the polarity of the plug before making the final connections (does it work, no, then swap the wires)






Here is a parts list for anyone interested:

Combo: TN190 Universal LCD Battery Charger + 8 Premium D 10000mAh NiMH Rechargeable Batteries
http://amzn.com/B007J413E2

Car Plug Adaptor for BC1HU, TN190, Tenergy RCR123A Chargers
http://amzn.com/B001AM0HU0

SEOH D Cell Eight Battery Holder With Wire
http://amzn.com/B00KI28UPW

Philmore Right Angle DC Power Plug w/ 6' Cable - 2.1mm I.D. 5.5mm O.D. : TC210
http://amzn.com/B00BY8LA0G

Consumables
  Electrical tape
  Solder (not required)
  Techflex (not required)

Offline Cobiwan

  • Trade Count: (21)
  • Taperssection Member
  • ***
  • Posts: 951
  • Gender: Male
Re: Homebrew 80,000mA festival battery pack
« Reply #1 on: May 30, 2015, 05:18:22 PM »
Very cool! Thanks for posting.
"Without music, life would be a mistake."
Friedrich Nietzsche

Mics:
Oktava MK-012 MSP6 Matched Stereo Mic Pair with Bill Sitler mod card + cardioid capsules
Audio CA-14 omni/UBB
Sonic Studios DSM-6S
Recorders:
Tascam HD-P2, Tascam DR-680
Cables:
Gakables XLR, S/PDIF, battery and umbrella, DigiGal AES > S/PDIF, Darktrain hot swap battery

Member of DiGiHoArDeRs

Offline jerryfreak

  • Trade Count: (12)
  • Taperssection All-Star
  • ****
  • Posts: 1795
  • I'm a llama! (taboot)
Re: Homebrew 80,000mA festival battery pack
« Reply #2 on: June 01, 2015, 01:53:04 AM »
LOOKOUT HIGH SIERRA!

Offline Brian Skalinder

  • Complaint Dept.
  • Trade Count: (27)
  • Needs to get out more...
  • *****
  • Posts: 18844
  • Gender: Male
Re: Homebrew 80,000mA festival battery pack
« Reply #3 on: June 01, 2015, 02:02:51 AM »
Good stuff.  I made one of these back in my DAT days.  Almost exactly the same setup.  Worked great, provided plenty long run-time in those days (even more, now, as devices have become more efficient).  And I did, in fact, run into at least one situation (probably more) in which it was handy to chuck off the shelf D batteries into the sled.  Very useful feature.

If memory serves, though, I think you have a 10,000 mAH battery.  If wired in series -- which I think you've done -- we sum the voltage and not the capacity (9.6V / 10,000 mAH).  If wired in parallel, we sum the capacity and not the the voltage (1.2V / 80,000mAH)
Milab VM-44 Links > Fostex FR-2LE or
Naiant IPA (tinybox format) >
Roland R-05

Offline Hypnocracy

  • Site Supporter
  • Trade Count: (45)
  • Taperssection All-Star
  • *
  • Posts: 1964
  • Hypnocratic Missionary
    • Hypno on teh LMA
Re: Homebrew 80,000mA festival battery pack
« Reply #4 on: June 02, 2015, 08:52:17 AM »
I HAD two Battery Geek 100wh 12v's...one died...If I continue to run the Portico (It sucked down a 60wh Tekkeon over 3 sets)...This eBay DIY LiPo is calling my name....12v x 12ah = 144wh with charger...$190..

http://www.ebay.com/itm/12v-12ah-pack-kits-4-pcs-high-quality-38140s-headway-cell-charger-and-BMS-/201360011088?pt=LH_DefaultDomain_0&hash=item2ee1fdef50

But...something tells me I'd be better off with a 153wh Bixnet BP160

http://www.bixpower.com/Bat-BP160-p/bat-bp160.htm
_____________
hypno on teh Archive

This must be heaven -- 'cause here's where the rainbow ends
If this ain't the real thing, then it's close enough to pretend

Offline pdxdanmusic

  • Trade Count: (3)
  • Taperssection Member
  • ***
  • Posts: 257
  • Gender: Male
  • pdxtaper
Re: Homebrew 80,000mA festival battery pack
« Reply #5 on: June 02, 2015, 09:16:23 AM »
I also use Bixnet and I like this one because it is just 12 and 5 volt.

http://www.bixnet.com/mp10012v.html
« Last Edit: June 02, 2015, 06:58:17 PM by pdxdanmusic »

Offline H₂O

  • Trade Count: (27)
  • Needs to get out more...
  • *****
  • Posts: 5436
  • Gender: Male
Re: Homebrew 80,000mA festival battery pack
« Reply #6 on: June 02, 2015, 02:58:00 PM »
http://www.all-battery.com/TenergyLi-Ion18650_14.8V13000mAhBatteryPackPCBandConnector-31047-02.aspx


$138 + 20 = 158


use promo code: THANKS for free shipping


Is what I have been eyeing for my hs-p82


14.8v x 13Ah = 192.4Wh


bixnet is only 153Wh and costs $50 more


FAA has a Wh limit on flying batteries (which I think is 150Wh or so) - so I don't think you can fly with this battery though

The home-brew pack above is 10Ah x 8 x 1.2V = 96Wh

Note that NiMH batteries have memory effects and don't hold up to nearly as many charge cycles as Lithium batteries.  I would definitely suggest towards a Lithium solution versus NiMH - such as 18650 solutions or LiFePo4 cell solutions

« Last Edit: June 02, 2015, 04:33:16 PM by H₂O »
Music can at the least least explain you and at the most expand you
LMA Recordings

List

Offline F.O.Bean

  • Is a 4 channel slut and
  • Trade Count: (125)
  • Needs to get out more...
  • *****
  • Posts: 40663
  • Gender: Male
  • Taperus Maximus
Re: Homebrew 80,000mA festival battery pack
« Reply #7 on: July 02, 2015, 10:37:45 AM »
http://www.all-battery.com/TenergyLi-Ion18650_14.8V13000mAhBatteryPackPCBandConnector-31047-02.aspx


$138 + 20 = 158


use promo code: THANKS for free shipping


Is what I have been eyeing for my hs-p82


14.8v x 13Ah = 192.4Wh


bixnet is only 153Wh and costs $50 more


FAA has a Wh limit on flying batteries (which I think is 150Wh or so) - so I don't think you can fly with this battery though

The home-brew pack above is 10Ah x 8 x 1.2V = 96Wh

Note that NiMH batteries have memory effects and don't hold up to nearly as many charge cycles as Lithium batteries.  I would definitely suggest towards a Lithium solution versus NiMH - such as 18650 solutions or LiFePo4 cell solutions



I thought that NI-CD [Nickel Cadmium] had a memory effect, but NIMH [Nickel Metal-Hydride] does NOT have memory effect? I have been keeping up on battery research since I started taping and I could've sworn that's what everyone used to say! NI-CD = Memory Effect, NI-MH = No Memory Effect 8) That's why every older landline cordless phone had NI-CD batteries, because after 6 months you'd have to go buy another one :P Nowadays, they're finally switching over to NI-MH. They were only 10 years too late haha ;D

And I know that Li-On batteries dont have a memory effect, but I swear mine always lasted longer when I cycled them about 4-5 times before their first use. After that I could charge them half-full or whatever, and they seemed to last longer than the ones I didnt cycle!

I don't know about you, but EVERY Lithium rechargeable battery I've EVER owned, has usually died on me out of the blue within 6-12 months MAX :( So I will stick with the NIMH rechargeables and can rely on my batteries actually working when I really need them, versus having a dead Li-On at the worst time possible ever lol :)

But hey, different strokes for different folks ;D I need a festie battery for my vms02ib. I think I'm just going with 9v NIMH battery packs from eBay, like I've done in the past! A 2,200mah NIMH pack on ebay is only $20, and a decent charger, only $15. So for about $40, id have a vms setup! I HATE taking apart the vms before I start taping for the day at festies. Id MUCH rather just plug in the special Schoeps DC connector for the vms boxes instead of opening up the vms once a day! And my 70D runs forever on USB batteries!

I love your idea OP 8) Haven't seen a homemade setup like that in awhile. Glad to see them still around! I like the rechargeable D batteries. I could use those in lanterns too lol 8) Wonder how many festies I could do with 80,000mah batteries on my preamps/decks
Recording Rigs:
Schoeps MK4's & MK41's ->
Schoeps | NBob 250/05 KCY's ->
Naiant +60v/Low Noise PFA's ->
DarkTrain Right Angle Stubby XLR's ->
Sound Devices MixPre-6 & MixPre-3

Portable Playback Rigs:
Sony NW-A35 Walkman & Shanling M0 DAP's ->
Linum G2 SuperBax & Bax | CA Litz | Westone Bluetooth MMCX Cables ->
Campfire Audio Andromeda & Dorado | Westone UM Pro 30 (G2) IEM's ->
Comply Isolation+ & Sport+ Memory Foam Tips

http://www.archive.org/bookmarks/diskobean | http://www.archive.org/bookmarks/Bean420 | http://bt.etree.org/mytorrents.php

 

RSS | Mobile
Page created in 0.178 seconds with 35 queries.
© 2002-2018 Taperssection.com
Powered by SMF