Test Dry 12V Battery Capacity

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masood Active Contributor Join Date: Jan 2009 Location: Pakistan Posts: 10	Test Dry 12V Battery Capacity 07/01/2011 11:11 AM
	Sir how i test dry battery 12v 5ah capacity weather is it healthy or not
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: electrical 07/01/2011 11:20 AM
	Connect it to a load and see what happens. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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masood Active Contributor Join Date: Jan 2009 Location: Pakistan Posts: 10	#2 In reply to #1 Re: electrical 07/01/2011 11:38 AM
	Dear But there is a battery rack having 32 batteries and i want to know how i check a faulty battery or weak battery.
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rakesh_semwal Guru Join Date: Oct 2006 Location: India, 200 Km. North of Delhi. Posts: 1393 Good Answers: 53	#3 In reply to #2 Re: electrical 07/01/2011 12:04 PM
	Charge all batteries to same level, or up to maximum possible level, and after that join them in series and connect output (12x32v= 384V) to A Load of 1 Amp (384 watt) and check the voltages on each battery, at start, after an hour and after 2 Hours, faulty batteries will show lower voltages and good one will stay up even after two hour,
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masood Active Contributor Join Date: Jan 2009 Location: Pakistan Posts: 10	#4 In reply to #3 Re: electrical 07/01/2011 12:20 PM
	Can i check the batteries (12V,5AH) by using multimeter or any other quick method. Thanks
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rakesh_semwal Guru Join Date: Oct 2006 Location: India, 200 Km. North of Delhi. Posts: 1393 Good Answers: 53	#5 In reply to #4 Re: electrical 07/01/2011 12:26 PM
	No, Or, You can put it under electron microscope, or on a sophisticated weighing scale and see which one have more electrons in it,
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TonyS Guru Join Date: Aug 2010 Location: Resting under the Major Oak Posts: 4347 Good Answers: 181	#6 In reply to #5 Re: electrical 07/04/2011 6:02 AM
	__________________ The reports of my death are greatly exaggerated.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#7 In reply to #2 Re: electrical 07/04/2011 8:20 AM
	Ah, so now it's a possible one dud battery in a bank of 32? OK. Monitor the performance of the battery bank over time. Carry out equipment-exchange planned maintenance on the batteries using a range of good spares. Individually test each removed battery for performance against a set of criteria, and pass/fail the battery against that test result. Renew failed batteries. Place passed batteries and new batteries into the equipment-exchange spares stock. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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