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Old 10-31-2009, 09:18 AM
tankman1989 tankman1989 is offline
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Question Does anyone know how to make batteries, maybe salvage old batteries?



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I'm wondering if it is possible to dissassemble old batteries, run them in parallel in a new case, add new acid/electrolyte and connect the terminals.

I figure if the "Baghdad" battery works, then an old battery should be able to be taken apart, reconditioned, and recomissioned. Maybe I'm wrong but it would be a great piece of knowledge to have.

If this can be done, anyone can find old batteries that are "dead" and make them work again.

Thoughts?
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Old 10-31-2009, 11:29 AM
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Rebuilding lead acid batteries requires a lot of electrical power. You are going to have to melt down the lead plates and electrolytically refine the lead to remove the sulfur impurities. Then recast the plates and reassemble the battery.

Far better I think to just buy high quality deep cycle batteries from Surrette and keep them charged with solar panels.
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Old 10-31-2009, 11:50 AM
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Here is what the old timers did for car battiers.

poured the water acid off the battery
filled the baty with straight acid
charged the hell out of the batty to burn the build up off the plates (done outside as the risk of hydrogen explosion is possible)
poured the acid out of the battery (with the scale off the plates, they strained the acid to remove the scale)
filled the battery with a 50/50 mixture with water (boiled or evaporated water for purity) and acid.

later
wayne
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Old 10-31-2009, 11:54 AM
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In mexico they take and cut old batteries at the casing seam and lift the plate, most of the time a battery dies because deposits of material over time build up under the cells and short them out, so they rinse the cells in fresh acid then the casing is cleaned out, they put the cells and the top of the battery back in place with some kind of sealer and then refill with fresh acid. 9 out of ten batteries are restored and last for a few years.
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Old 02-11-2014, 11:55 AM
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Just look on Utube! there are a bazillion videos on how to recondition dead batteries. It's not as hard as you think but disposing of the old battery's toxic waste is more of the issue. Pour it on the ground and it goes into the water system, pour it where you might need to grow a garden someday and your garden won't grow, pour it around pets and children and they might get acid burns. I don't even think the dumps hazardous waste drop off will take it! They say to use baking soda to neutralize the battery acid but I still don't want it on my property.
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Old 02-11-2014, 12:16 PM
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Great advice so far on reconditioning car batteries. You can buy the acid electrolyte in bulk for this.

In general, once a nimh or nicad battery is done, it's done. Some alkaline batteries like aa's, aaa's, etc, can be extended a bit by smacking them hard on a wall or table. You can take a dead set of batteries in a remote control, smack em around good and re-install them, and the remote will go for months more sometimes.

As far as making a real useful battery from scratch, not easy at all, but can be done. You can make a slightly useful battery with penny's. The older and more corroded the pennies, the less effective it will be i think. Cut little discs of carboard out slightly smaller than a penny, soak them in vinegar and water, or lemon juice, sandwich them between pennies, put wires at either end and tape it all together with electrical tape. It will produce power until the carboard dries out. http://en.wikipedia.org/wiki/Penny_battery

Since lead is toxic, it might be best to make nickle iron(edison) batteries if you are going to try to make serious batteries from home. The property of a nickle iron battery is that they hold a lot of power, they charge slow and they discharge slow. Ideal for the trickle charge of a solar panel, and lasting all night long for low power output. You could source nickle from a number of places including coins, and iron from scrap all over the place. http://en.wikipedia.org/wiki/Edison_battery
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Old 02-11-2014, 12:24 PM
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Oh here is something interesting someone might want to try. http://www.instructables.com/id/The-...er-Capacitor-/
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