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Registered Member #3925
Joined: Fri Jun 03 2011, 10:50AM
Location:
Posts: 121
hey,
i have a 12v 1.3ah lead acid sealed battery,
it reads 12v, but its short circuit current is only 400ma, and it wont draw any current from the charger, so it wont charge, could i unseal it and use epsom salts or something?
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Once you violate the environmental barrier of a lead acid cell, it is immediately transformed into hazardous waste, which (in many jurisdictions) you will have to pay a licensed facility to dispose of, if you are not to break the law.
See, as an example only, the laws of North Carolina,
Applicable Laws
15A NCAC 13B G.S. 130A-309.70-309.72
309.70(b) No battery retailer shall knowingly place or dispose a used lead-acid battery in a landfill, incinerator, or waste-to-energy facility. 309.71(a) A person who offers for sale lead-acid batteries at retail in this State shall accept from customers, at the point of transfer or sale, used lead-acid batteries of the type and in a quantity at least equal to the number of new batteries purchased, if offered by customers. (b) A person who offers for sale lead-acid batteries at retail in this State shall post written notice that must be at least 8 1/2 inches by 11 inches in size and must contain the universal recycling symbol and the following language: (1) "It is illegal to improperly dispose of a motor vehicle battery or other lead-acid battery." (2) "Recycle your used batteries." (3) "State law requires us to accept used motor vehicle batteries or other lead-acid batteries for recycling in exchange for new batteries purchased."
Used lead-acid batteries that are disposed and NOT recycled must be managed as hazardous waste because of the lead and acid content (D008, D002). They should be disposed at a permitted hazardous waste facility. The acid and casings from these batteries have been found to contain high quantities of lead and should also be managed as hazardous waste when disposed.
Lead-acid batteries and other hazardous waste batteries, such as nickel-cadmium, mercuric-oxide, and lithium batteries, can be managed under the Universal Waste Rule, 40 CFR 273, codified at 15A NCAC 13A .0019. Contact the Division of Solid Waste Management's Hazardous Waste Section in the Department of Environment and Natural Resources for more information.
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1716
alf wrote ... it reads 12v, but its short circuit current is only 400ma, and it wont draw any current from the charger, so it wont charge, could i unseal it and use epsom salts or something?
Sounds like it's dried up. They all do that, eventually. At that point, IMHO the plate surfaces are sulfated or whatever, and not worth recovery except as lead scrap.
Fortunately, in my experience, new or used battery dealers and scrapyards will generally take the dead battery off your hands for free, without breaking any laws. Car batteries are even good for a core rebate on a new one. Smaller ones can be dropped off at some Radio Shacks, small-battery stores, hardware stores, household hazardous waste events, and anywhere you legally get rid of cordless tools and appliances. Unlike NiCd's, I think lead-acid batteries have enough metal recoverable by approved methods, that they have positive value in the recycling chain. Even without that, environmental authorities don't want to make "doing the right thing" so onerous that most people cheat.
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recondition sealed lead acid battery?
