Battery rebuild test number 20ish

34%

what are you using to charge batteries? solar? grid?

Old busted grid store charger.i may put on solar charger.i have beginnings of system.
1 trojan
1 midnite solar mppt
1 100wt panel

hydroponic stores or online have it

Quick fix,cheap,fast.if we get in a bind,we need to know what really works.i get sick of reading bs online.i want the truth.epson salts are very easy to buy or find in an abandoned home.
End times survival.

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Have you ever reconed a regular car battery OP?

If so how is it done?

I got a doz sitting around here. Would love to use em as batteries instead of weights

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Same thing only bigger.

Im a lady

Help me out here

1. What do I do w the liquid thats in the old batts now?

2. Do I flush the old batts out? Dry em?

3. Fill with your above recipe of epsom salts/ dist illed water?

4. Charge?

5. What am I missing?

Dont do this yet,right now the voltage is dropping.its at 9.4vdc
It may be a bad charger.
Let me get solid results first.
If i succeed then go forward.
For future thought.dont ever trade in an old battery.its worth way more than core deposite.
I had already done this once and got two more years of use.had my good charger stolen but have this old warn out one im trying to get results with.
I had a battery company owner once tell me most batteries just need a good slow charge to recover.
If its got caps or blocks that can be removed with a screwdriver,it can be restored.black cases usually means plates are epoxied in and thats even better.no plate movement to break from vibration.

Thank You!!! Yes I’ll wait. Been wanting to do this for years now. That’s why I kept the batts.

See below in CAPS

I’ve got 14 unused deep cycle batt’s that I bought at a garage sale recently. 5 are good to go. 4$ each they sat for 10 years! Anyway…/

Well I made a post with some info that could really help. But it's such a pain using a phone on here, the post is gone and so is my patience.

I made good money selling recon batteries in the early 80s, then the market went upside down.

5.5 amps maintained for 24 hours. Reduce to 4.5 amps maintained for another 24 hours. Need a charger with coarse and fine amperage adjustments, mine handles six batteries at a time.

I never tried the epsom salt and dump method. Not sure what was in the purple juice I bought through mailorder.

Yes

Always kept the caps from the junk batteries. On the batteries with no caps you just drill with a 5/8" hole saw, pop the caps out of the holder and cap the holes.

you can test for a really bad cell by test charging batt for few hrs, then afterwards short the battery with jumper cables with cells open so you can see inside (after letting the cell holes air out so no hydrogen is present in case of sparks), if any cells start bubbling violently they have no charge and are the bad ones they would be the only ones that need drained, if fully redoing battery drain entirely flush with (preferably hot) water over and over to absorb some sulfates so the cells wont be shorted by crystallized sulfates

also if completely drained and u shake it u hear rattling the cells are far too gone to bother with metal chunks are loose from impact/vibration damage and and will just short and have randomly functional cells thatll be unsafe if not flat out you can try locating the specific celsl and short it permanantly to make 10/8/6 v batteries that have high current otherwise the too dead/shattered cell is a current drain (hence bubbling when shorted)

*to short a dead /damaged cell to make a less v but good amp battery so it wont be a current drain, drain that particular cell run six or so steel deck screws into the sides where u can see the lines for the cell so they short the finned plates or jam enough metal filings to withstand the current without heating into the dried bad cell

No

Use a bright light to look in the cells. Pass on any with distorted plates, or a lot of black in the electrolyte. The black is from deteriorating plate separators.

you don't have bad luck.

batterys have gone to complete shit.
AND they're failing in record numbers. ask auto ppl. super weird.

epsom salt. whatever dissolves in cold water. no crystals left.

that's enough to bring back a failing battery. but it's still going to fail.
and under high charge/discharge use epsom salt will kill it faster. and watch the charge temp. it can get hot hot using salts.

Never thought of that on the shorting,makes sense.
I researched the sulphate shorts.thats a hair like chrystal that forms over time.thing is,if its not stationary but on a tractor or such that vibrates,the chances go down bigtime of a sulphate short.plus the vibration mixes the fluid which improves battery life.
Thats why i think if i specialized in recovering batteries,i would mount a speaker on a metal plate and set batteries on it.then rock out.thus vibrating off some of the sulphate chrystal hairs.

Slow charge is great, for good batteries.

For reconditioning, I think it's the boiling under 5.5 and 4.5 amps that helps break up the sulphation. Along with secret sauce.

There are recon chargers available with de-sulphation cycles, but they're pricey.

AGM batteries are far better than wet cell lead acid.

The one on my motorcycle is almost ten years old. Worth every penny.

Clicked off and read 9.1,clicked back on then back off,read 10.1,then clicked back on.i think charger is funky.

tomorrow ill hook it up to my new solar mttp and try that way.its a very nice piece of equipment,i bought it specifucally to eventually have a whole home system off grid.my first big investment in off grid.it even showed that my used trojan was actually up to par.last owner had cheap mttp and it read trojan was bad.it actually wasnt.my cheap one said same thing.this midnite solar is top of the line.

If you have 10 car batteries that can be recovered,you are ahead of the curve to solar.batteries are the most expensive part and imho lead acid is the way to go on a low budget.lithium is for millionaires.
10 car batteries is like 5000 amps at 12 volts.60,000 watt hours of power.that will run a window ac all night then solar cells charge batteries and run ac during day.but dont take my word for it.astro has a system and knows more than me on it.im still learning.

So read the voltage from the charger without a battery connected. Maybe it's the battery.

Charger is junk.putting out 9.4 volts,tested w multimeter.

they made the metal plates thin as hell over the years unless they are deep cycle repairing them is almost a fruitless venture, generally i charge at 12v for few hrs do that shorting test to see which cells bubble violently drain that cell/cells and short it/them then i at least have a 6.3/8.5/10.5ish v batt that has orig cca, dead cells stall virtually all cranking amps with high resistance and put it out as heat in the dead cell/s plus recovering is more of a hassle than the profit, can get a 24v solar charger instead then if u get 3x 8v batts/4x6v its one 24v and so on or even two ten v and a 6 at least youll have the req amps for house inverters, shorting the dead cells flat out also makes it less likely youll shake up or damage the other cells by moving em too much let alone the unnecessary lead exposure duct tape the good cell holes drain bad one drill bunch steel deck screws in (preferably predrill into lead with a 1/8 drill bit so they dont angle into other cells)to short the cell (always 6 or more screws think to handle current), call it a day

Yeah im thinking of building mine as 24vdc system as tractor trailer batteries are cheapest and my mttp is a variable setup.its about buying as much lead at the cheapest price and it dont get cheaper than the biggest you can get.150ish a piece or was.yeah 6vdc can be wired back to 24vdc.
I have seen some 2 volts and i dont know if you notice but even at night,solar picks up 3.7vdc.i think its all the background microwave and the solar cell is picking it up.think if a person could tap that.even cloudy days would be free,total darkness and still power a home!