Mega pulse battery pulser

**DEFENDERZOOK** · 27th August 2007, 10:29 PM

youve provided more info than you think.......

anyone know how they work exactly......?

**drivesafe** · 27th August 2007, 10:37 PM

To my knowledge, there are two types.

One applies continuous very short high voltage pulses.

The other applies a very short but very large pulsed current load on the battery once every few minutes, something like a 40 amp load for about a 10th of a second.

I think, no positive, that a Megapulse is of the first kind.

Cheers

**DEFENDERZOOK** · 27th August 2007, 10:42 PM

thats what i suspected.........it "zaps" the battery......

but heres what i dont understand.........how does drawing power from the battery....not send it flat.....?

**Blknight.aus** · 27th August 2007, 10:42 PM

they put a spike onto the battery usualy in the 70v range and this blows the lead sulphate off of the battery plates allowing the acid to have a go at fresh lead.

If youve had a look at the bottom of a clearish sided battery when ones been working for a couple of weeks you'll notice a layer of sediment on the bottom of the battery.

The old school version of this was a shock treatment of the battery, drain its old acid out, refill it with at least double strength acid let it sit for a day, shake it drain it and refill it with normal acid. (electrolyte)

lokka · 27th August 2007, 10:43 PM

Originally Posted by drivesafe

To my knowledge, there are two types.

One applies continuous very short high voltage pulses.

The other applies a very short but very large pulsed current load on the battery once every few minutes, something like a 40 amp load for about a 10th of a second.

I think, no positive, that a Megapulse is of the first kind.

Cheers

Which do you think would work beta the short sharp pulses in or the short loads on say a gel type sealed battery ...

As either device could be made up if thats all they do just simple electronics with caps and a timer tho how much of a high voltage zap will it need to work would be the key to sucsess dont want to blow the bugger up with to much HT

**DEFENDERZOOK** · 27th August 2007, 10:45 PM

Originally Posted by Blknight.aus

they put a spike onto the battery usualy in the 70v range and this blows the lead sulphate off of the battery plates allowing the acid to have a go at fresh lead.

If youve had a look at the bottom of a clearish sided battery when ones been working for a couple of weeks you'll notice a layer of sediment on the bottom of the battery.

The old school version of this was a shock treatment of the battery, drain its old acid out, refill it with at least double strength acid let it sit for a day, shake it drain it and refill it with normal acid. (electrolyte)

there you go lokka......i told you batteries could be recycled but could remember how.......now i found out how.......
it wont last as long as the battery did when it was new.......
but it will rejuvenate an old battery and give it another year or two.......

lokka · 27th August 2007, 10:45 PM

Originally Posted by Blknight.aus

they put a spike onto the battery usualy in the 70v range and this blows the lead sulphate off of the battery plates allowing the acid to have a go at fresh lead.

If youve had a look at the bottom of a clearish sided battery when ones been working for a couple of weeks you'll notice a layer of sediment on the bottom of the battery.

The old school version of this was a shock treatment of the battery, drain its old acid out, refill it with at least double strength acid let it sit for a day, shake it drain it and refill it with normal acid. (electrolyte)

Yep ive heard of the acid flush method and ive seen it work too

lokka · 27th August 2007, 10:46 PM

Originally Posted by DEFENDERZOOK

there you go lokka......i told batteries could be recycled.......now i found out how.......
it wont last as long as the battery did when it was new.......
but it will rejuvenate an old battery and give it another year or two.......

Yep your right tho the flush method may also give the big cells a new lease on life too

**DEFENDERZOOK** · 27th August 2007, 10:50 PM

Originally Posted by lokka

Which do you think would work beta the short sharp pulses in or the short loads on say a gel type sealed battery ...

As either device could be made up if thats all they do just simple electronics with caps and a timer tho how much of a high voltage zap will it need to work would be the key to sucsess dont want to blow the bugger up with to much HT

in a lead acid battery......the sulfate drops to the bottom of the cell away from the plates.......
i dont think it will do this in a gel cell.......the gel would be too thick to let it fall to the bottom.....methinks......

same with the AGM type batteries........

**Blknight.aus** · 27th August 2007, 10:59 PM

Originally Posted by DEFENDERZOOK

thats what i suspected.........it "zaps" the battery......

but heres what i dont understand.........how does drawing power from the battery....not send it flat.....?

ahhh but that theres the clever bit...

IF the battery is too shot to power the zapper then the zapper wont work because the battery is too shot.....

in the original brute force version it relied on a very simple timing device (like a 555 timer) to do make/breaks on an un damped double wound relay (like in the starter motor throw out solenoid(one pull in coil one holding coil in the same unit)) that when opened allowed it to function sort of like a very weak ignition coil which gave you your pulse. A battery that couldnt power this up wasnt going to respond to the treatment) once a week or so youd take the zapper off put it on a trickle charge overnight and try it with a battery toaster the next day to see what it could do. If it was getting better you left it on the zapper and if not then you either got old old school brutal with it or turfed it.

The next generation did the same thing but with electonics same basic method but with a more controlled pulse, these ones later on had internal reistance senseing and lowered the spike voltage accordingly to prevent the plates from blowing fresh lead off.

The latest versions (and they vary with costs depending on how much $$$ you want to spend on saving batteries) are very similar but now have trickle chargers and testers built into them. plug it onto a battery, feed it its nominated input charge (some take 12v from a plug pack or another battery others 240v) and let it sit. IF your grass is done growing you could sit and watch the power led and the zapping lead blink away in merriment untill the green "your batteries done now" light comes on.
Assuming of course the red "your joking right" led hasnt come on first.

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