Poll

How big is your battery bank?

Under 1000aH
47 (70.1%)
1001aH - 2000aH
14 (20.9%)
2001aH - 3000aH
3 (4.5%)
3001aH - 4000aH
2 (3%)
> 5000aH
1 (1.5%)

Total Members Voted: 64

Author Topic: How big is your battery bank?  (Read 28472 times)

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madlabs

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How big is your battery bank?
« on: September 30, 2010, 07:16:50 AM »
Just wondering the size of folks battery banks. Mine is 1200aH.

Janne

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Re: How big is your battery bank?
« Reply #1 on: September 30, 2010, 07:25:00 AM »
I think it would be better to rate the battery bank size in kWh's rather than Ah's, as kWh's would take the system voltage into account. I also wonder how many % will actually exceed 1000Ah =).
For the record, my 12V battery bank has 210 of tired Ah's :)
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TomW

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Re: How big is your battery bank?
« Reply #2 on: September 30, 2010, 09:40:40 AM »
Well AH is kind of vague.

My 1360 AH @ 24 volts is 2X the energy density of the same AH @ 12 volts and 1/2X the energy density of the same AH @ 48 volts..

Just stating the (not so) obvious.

Tom
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dapdan

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Re: How big is your battery bank?
« Reply #3 on: September 30, 2010, 09:43:08 AM »
My system voltage is 24 and I have several banks:
1000Ah, 1500Ah, 1400Ah, 1600Ah

3 of them are AGM and the 1500Ah is a FLA.

Cheers...
Damani

Fused

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Re: How big is your battery bank?
« Reply #4 on: September 30, 2010, 09:56:42 AM »
My battery bank is now 250Ah connected for 24v. Not quite ready for off grid but they hit dump level most every day with a bit of sunshine.  ::)

wooferhound

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Re: How big is your battery bank?
« Reply #5 on: September 30, 2010, 10:07:34 AM »
Here is the same poll from about 4 years ago . . .
http://fieldlines.com/board/index.php/topic,141164.0.html

Tritium

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Re: How big is your battery bank?
« Reply #6 on: September 30, 2010, 10:22:09 AM »
660 amp hour, 12V

Thurmond

ChrisOlson

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Re: How big is your battery bank?
« Reply #7 on: September 30, 2010, 11:26:58 AM »
Two of them - 3,000 amp-hours @ 12 volts, 1,500 amp-hours @ 12 volts.
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madlabs

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Re: How big is your battery bank?
« Reply #8 on: October 01, 2010, 08:36:56 AM »
OK, I should have done kWh's, but since I didn't, just state your battery voltage along with aH. Mine is 1200 aH, 12V.

DamonHD

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Re: How big is your battery bank?
« Reply #9 on: October 01, 2010, 08:46:59 AM »
40Ah at 12V!  (ie about 0.25kWh usable)

Rgds

Damon

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Re: How big is your battery bank?
« Reply #10 on: October 01, 2010, 07:35:06 PM »
1140 @ 48

JeffD

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Re: How big is your battery bank?
« Reply #11 on: October 01, 2010, 08:55:48 PM »
150Ah * 12v

rossw

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Re: How big is your battery bank?
« Reply #12 on: October 02, 2010, 12:01:47 AM »
3 x 500AH AGM @ 48V here.
Another abused ex-moderator who's made the move to http://www.otherpower.com.au where DNS works, admins do stuff apart from randomly deleting other peoples posts and sigs, and people are nice.
JW: QUIT EDITING MY SIG!

freejuice

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Re: How big is your battery bank?
« Reply #13 on: October 02, 2010, 04:18:32 AM »
225 @ 48V, it fills up pretty fast

tanner0441

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Re: How big is your battery bank?
« Reply #14 on: October 02, 2010, 12:53:06 PM »
Hi

340 AH VRLA Deep cycle marine at 12 V

Brian

birdhouse

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Re: How big is your battery bank?
« Reply #15 on: October 27, 2010, 08:40:31 PM »
240ah @ 24v.  FLA

HiddenMountain

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Re: How big is your battery bank?
« Reply #16 on: October 27, 2010, 10:47:03 PM »
800AH @ 12V Sealed lead acid
Energy Systems & Design Stream Engine, 30A @ 24V, 750W 
Magnasine MS4024P AE
4 450AH Rolls Surrette
2 Xantrex 60A Charge controllers
Power, by God!

I hope they never find a cure for Eleutheromania

Simen

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Re: How big is your battery bank?
« Reply #17 on: October 28, 2010, 12:47:59 AM »
530Ah @ 12V (2x6V Rolls S-530)
I will accept the rules that you feel necessary to your freedom. I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do. - (R. A. Heinlein)

wpowokal

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Re: How big is your battery bank?
« Reply #18 on: October 28, 2010, 03:19:18 AM »
1320 A/h @ 100 hour rate 48 V system for residence, 2600 A/h @ 24 V for work shed.

allan
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SteveCH

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Re: How big is your battery bank?
« Reply #19 on: October 28, 2010, 07:10:36 AM »
1860/12

picmacmillan

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Re: How big is your battery bank?
« Reply #20 on: October 28, 2010, 07:30:51 AM »
what i did was figure out how much electricity i used in a 2 week period, and i doubled it for storage..i figure we have typically 3 days of sun, and 3 days of rain.....just hypothetically...i also had 80% of power coming from wind turbine(s), and 20% from solar....and no matter what i dont let the batteries go below 60% charged...the trick is to not hurt youre batteries.i had read lots prior to deciding also..there is alot to it, and many myths also....i have a battery file somewhere on here if you can find it..makes for a good read, and worth keeping...take care..pickster

http://www.otherpower.com/images/scimages/1135/battery_chapter.pdf <---From the book: “Solar Electricity” By Robert Sharman

1340-0
« Last Edit: October 28, 2010, 07:49:31 AM by DanG »

hayfarmer

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Re: How big is your battery bank?
« Reply #21 on: January 19, 2011, 02:32:30 PM »

have a 300 A.H. 48 V system
and a 500 A.H. 12 V system
(one of the little critters was removed from pic)
also cleaned up with conduit no recent pic's 8)
« Last Edit: January 19, 2011, 02:37:06 PM by hayfarmer »

hayfarmer

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Re: How big is your battery bank?
« Reply #22 on: January 19, 2011, 02:35:30 PM »
sorry same pic twice :'(

WindriderNM

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Re: How big is your battery bank?
« Reply #23 on: January 19, 2011, 03:04:05 PM »
I'm not sure I have 2 banks 1 is 2-12v 100ahr the other is 12-6v batteries that i got from a friend who was putting in a larger system. there are no labels on them  they look like golf cart batteries. the system is 12v
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dnix71

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Re: How big is your battery bank?
« Reply #24 on: January 19, 2011, 04:25:18 PM »
Seven 12v 75AH nominal hybrid deep cycle/start flooded lead acid batteries in series.


DamonHD

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Re: How big is your battery bank?
« Reply #25 on: January 19, 2011, 04:48:47 PM »
I upgraded 10x: do I get to vote again?  B^>

Rgds

Damon

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Re: How big is your battery bank?
« Reply #26 on: January 20, 2011, 10:42:15 AM »

I have no proper battery bank, instead I have
                       3 battery sets: 4 12v 7Ah for a total of 28 Ah (used for a hotwheels type of car by the daughter)
                                             1 12v 110Ah boat battery (this will be the "main bank")
                                             2 old and tired 12v car batteries to play around @24v wired in series

Cheers
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