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Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt


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41 minutes ago, h4nd said:

Well, your charger is no longer making progress on it. I'll gratefully try one from @ajg193, and if no joy we can try that when I come to borrow your mig for a minute (please).

Come grab charger some time

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You want to give it some short sharp shocks to break up the crystals that form, the smart charger does pretty much that

 

You can also break the crystals up by giving the battery heaps of amps and not letting it boil dry

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On 14/03/2022 at 10:01, h4nd said:

Speaking of battery stuff. I have a battery (was 10.8V) I'm trying to save (just for interest). My 2.2A charger wasn't doing the biz, and @RUNAMUCKhas been kind enough to loan me his 3 or 4A "Pulse charger" (MSPaint graphs coming later). It's slowly clawing the peak voltage up, which looks promising.

My Q is: what happens if I invert the battery and slosh it around to try and loosen the crystals / acid-salts/whatever while it's charging. Does it short through the electrolyte and explode, or go flat real fast or some nonsense? ( @ajg193, Autosparkies?)

Anyone with experience with flooded lead acid batteries from roll-overs etc? Thanks team.

Epsom salts and there is a thing you can connect across the terminals called a de sulpalter   

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2 minutes ago, ajg193 said:

Doesn't logic dictate that if epsom salts actually made a shit battery really good then the factory would put it in?

I had a 7 year old battery that wouldn't even start a 4 cylinder work for another 3 years cranking a v8 after drilling holes in the top and putting in a spoon full of Epsom salts into each cell, I even sold the battery with a tractor in the end.

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5 minutes ago, ajg193 said:

Doesn't logic dictate that if epsom salts actually made a shit battery really good then the factory would put it in?

Logic also dictates that if you make a battery not last a long time, you can sell more batteries. 

Guess which logic a battery manufacturer goes with? :P 

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2 hours ago, Bling said:

Logic also dictates that if you make a battery not last a long time, you can sell more batteries. 

Guess which logic a battery manufacturer goes with? :P 

Logic also dictates that everything is built to a price, quality be dammed :( 

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I used to bolt batteries to the vibration bench at my old work while charging certainly made them better then ever after they sat for a week all crap rattled off plates settles to bottom of battery.

 

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