Will This battery work? - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 15th March 2012, 10:15 AM   #1
diyAudio Member
Join Date: Mar 2012
Default Will This battery work?

Hey everyone... my first post here but not my first visit.

I have a small project that I am undertaking. I want to build a portable sound system. I know which amp I will be getting. it is the sure electronics 2 x100watt tk2050

eBay: Neue und gebrauchte Elektronikartikel, Autos, Kleidung, Sammlerst?cke, Sportartikel und mehr ? alles zu g?nstigen Preisen

I am now looking for a battery to power this. and i was thinking about going with lipo and using a sensor to tel me when its running low. Would this one work? It is 22.2v and 5000mAh.

Turnigy 5000mAh 6S 22.2v 25C 35C Lipo TREX 550 600 700 UK Seller | eBay

Any help from you would be greatly appreciated.


  Reply With Quote
Old 15th March 2012, 12:33 PM   #2
agdr is offline agdr  United States
diyAudio Member
agdr's Avatar
Join Date: Sep 2010
The LiPo cell would work, but at only 5Ah capacity would last about 30 minutes at the full 200 watts. At 50W total you would get a couple of hours, etc.

If you need to run it for many hours near full power you would be better off with car or motorcylce batteries. Here in the US the car batteries are 12Vdc, so two of them in series for 24Vdc. A pair of 200Ah batteries would run for 24 hours at full power.

Last edited by agdr; 15th March 2012 at 12:43 PM.
  Reply With Quote
Old 15th March 2012, 07:28 PM   #3
diyAudio Member
Join Date: Mar 2012
thanks for reply.

Wouldnt car batteries be way too heave though? as This is a portable system much like a boombox/ghetto blaster. plus the batteries are pritty huge aswel?

thanks again
  Reply With Quote
Old 15th March 2012, 07:47 PM   #4
RJM1 is offline RJM1  United States
diyAudio Member
Join Date: Jan 2010
Location: Titusville, Fl.
Or airplane batteries rated 24V vs 12V for a car and charging volts at 28V
  Reply With Quote
Old 15th March 2012, 11:20 PM   #5
diyAudio Member
Join Date: Mar 2012
OK so im a bit confused. LIPO batteries are no good as they will only stay charged for 30mins but a car or motorcycle battery would last longer but are really big and really heavy. is there no happy medium?
  Reply With Quote
Old 15th March 2012, 11:40 PM   #6
diyAudio Member
Join Date: Mar 2012
Also i was thinking... could i use the old school D batteries and also have a mains power so that the batteries are only used when away from mains? If this is a good idea how many D batteries would i need? and is it relatively to make it so that mains has priority over batteries?
  Reply With Quote
Old 15th March 2012, 11:49 PM   #7
diyAudio Member
Join Date: Mar 2012
How about using D batteries? So I would have a load D batteries for when the thing is portable and when its in the house use mains instead? How many D batterys would i need? to get around 22v? (i dont really know how you calculate it...do you just do volts x amount of batteries? )

also is it easy enough to have both batteries and mains...where mains takes over when pluggd in
  Reply With Quote
Old 25th March 2012, 06:08 PM   #8
norture is offline norture  Indonesia
diyAudio Member
norture's Avatar
Join Date: Nov 2005
Location: Palembang, Indonesia
My advice is to just go on with the LiPo. It's the best option regarding power/weight ratio. Nevertheless you'd need a specially designed LiPo battery charger as well because you can't use ordinary battery charger.

And don't use those bulky one-time-use D batteries. Their days are gone and let them rest in peace now
  Reply With Quote
Old 25th March 2012, 06:15 PM   #9
diyAudio Member
Join Date: Nov 2008
Location: Oakmont PA
A 200 W amplifier playing loud music will average under 40 watts. So a 22 V 5 AH when new will run for over 2 1/2 hours.
  Reply With Quote
Old 25th March 2012, 06:54 PM   #10
sreten is offline sreten  United Kingdom
diyAudio Member RIP
Join Date: Nov 2003
Location: Brighton UK

Take a look at the Podzuma :

Parts Express DIY Project

I'd substritute this is place of the Dayton PA driver, tuned a little lower, say 60Hz.
Aurasound NS525-255-8A 5.25" Paper Cone 8 Ohm: Madisound Speaker Store
(The dayton driver is out of stock, the aura is a better driver IMO)

The presumably quite high bass roll-off of the little t-amp will help
with preventing low bass overload, and you can't reproduce ]
low bass outdoors anyway.

You don't need 100+100W for a small portable boombox.

rgds, sreten.

Last edited by sreten; 25th March 2012 at 07:13 PM.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Are you a walking battery? GeneZ The Lounge 68 11th September 2011 05:47 PM
Will this amplifier work with this subwoofer?? How would the wiring work? hd2008 Car Audio 0 20th March 2011 08:57 PM
how does car battery charging work? icecoolwas Everything Else 6 12th August 2010 10:14 AM
Battery Charger for 15V Li-ION Battery Pack ??? Jan Dupont Parts 2 11th April 2009 02:18 PM
Battery VoLCoM Parts 1 17th August 2003 08:45 AM

New To Site? Need Help?

All times are GMT. The time now is 10:34 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2