bautsche
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« on: June 06, 2011, 01:28:05 PM » |
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I'm looking for a second hand 48V battery bank. I've currently got a bank of 2V cells giving about 640AH. This is really far too small for my application but I don't have the money to buy a brand new bank of 1250AH cells, which is really what I need.
I'm also worried that the existing bank is quite old and could at some point soon break on me.
If anyone has any cells or complete banks of high'ish capacities (640AH and up) available for a reasonable second hand price, I'd be quite happy to come and collect (we're in Derbyshire, but I tend to travel all over the UK, so can pick up pretty much anywhere that isn't an island or in the north of Scotland).
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bautsche
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« Reply #2 on: June 06, 2011, 03:20:48 PM » |
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Thanks for the link.
I'm not really familiar with Golf Carts. What sort of batteries doe they have?
Eric
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Justme
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« Reply #3 on: June 06, 2011, 05:09:50 PM » |
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Have a ring / email round forklift suppliers for a used bank.
The problem is that dead banks are now worth nearly £500 per tonne as scrap.
For example our 700ah @ 48v bank (we use it as 2800ah@12v) weighs 1200kg so is worth £600 as scrap.
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Navitron solar thermal system
30 x 58mm panel 259L TS
1200watts solar 120vdc
FX80 Solar controller
Victron 12v 3000w 120a
200w (250w peak) 12v turbine as a tester
6kva genny
6 x 2v cells 1550amp/h 5C
24 x 2v cells 700amp/h 5C
Total bank 4350 amp/h @12v
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billi
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« Reply #4 on: June 06, 2011, 05:32:20 PM » |
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 True Justme that was my thinking as well when i bought a 1600 ah @ 24 volt 1100 kg battery from a second hand supplier in Germany ( shipped to Ireland for 1500 Euro ) so in the end i only paid half cause the recycling value I really should buy more , just for the value of the lead Who buys Gold these days 
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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profp
Guest
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« Reply #5 on: June 06, 2011, 05:42:00 PM » |
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Any specific recommendations for where to go to get knackered old forklift batteries recycled? (In the UK ;-)
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qeipl
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« Reply #6 on: June 06, 2011, 07:15:07 PM » |
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Thanks for the link.
I'm not really familiar with Golf Carts. What sort of batteries doe they have?
Eric
I think they have 6 x 8V batteries - c.170aH @ 48Vdc |
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Take 3 minutes to find out where money comes from, why that means we will all end up in debt, and what we can do to fix the problem… http://www.positivemoney.org.uk |
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ev_dub
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Posts: 9
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« Reply #7 on: October 27, 2011, 11:05:22 PM » |
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I have 10x Trojan 150ah batteries =18kWh of power!! If you want 48 volt pack you could wire 4 batteries in series for 48volts, and two of these packs in parallel for 48v 300ah. They cost me £1700. They have only completed 230cycles and are rated up to 1000cycles if you discharge to 70%, even more if dont discharge that deep. Mnay places are charging over £200 each for thesenew. I am asking £700 for all 10. you can see the spec here: http://www.tayna.co.uk/T-1275-Trojan-Battery-Deep-Cycle-T1275-P8673.htmldave |
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bautsche
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« Reply #8 on: October 28, 2011, 07:42:02 AM » |
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Hi Dave.
I've been limping along with my existing bank and I still need to sort something....
Unfortunately, 300AH is not enough, I need something exceeding 1000AH.
I'm also leaning towards putting an array of solar panels in the back garden. Jury is out if that's legal without planning permission in my case, but no-one's going to see them either way, so one would hope I would get planning....
That would reduce the load on the batteries thus making what I've got more suitable...
Thanks for the offer though.
Eric
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knighty
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« Reply #9 on: October 28, 2011, 11:52:48 AM » |
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when I replaced my forklift battery (in the forklift) it was £900 fitted.... but that was about a year ago.... and they took the old batteries away  |
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ev_dub
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« Reply #10 on: October 28, 2011, 09:52:42 PM » |
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Hi Dave.
I've been limping along with my existing bank and I still need to sort something....
Unfortunately, 300AH is not enough, I need something exceeding 1000AH.
Over 1000ah? at 48volt= 48kWh??? Blimey what are you running to consume that much power? Glastonbury festival? Have you measured how much power your old pack can actually store? If they are that old perhaps they just aren't efficient? |
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SteveH
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« Reply #11 on: October 28, 2011, 10:11:47 PM » |
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Have you measured how much power your old pack can actually store? If they are that old perhaps they just aren't efficient?
Have to agree, but that's a mid summer job if you're off-grid. But may be worth doing now or it could be a difficult winter...? |
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Preveli, South Crete.
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