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 Post subject: commercial battery reconditioner ?
PostPosted: Thu Jan 22, 2009 3:24 am 
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I stumbled on a site for a company which bought another's rights to a high-frequency battery reconditioner.
There are very pretty pictures of sulphation and sponge lead on the battery basics tab, along with text of the electrochemical reactions.
I won't link directly to it since I'm not sure of the rules regarding that :shock: and this isn't an ad for them, no affiliation, and I'd only get their product to reverse-engineer it anyway :lol: but very prety pictures anyway.
www.canadus.com/
hopefully the info will do someone good


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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Sun Jan 25, 2009 3:50 pm 
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bigsupersquid wrote:
I stumbled on a site for a company which bought another's rights to a high-frequency battery reconditioner.
There are very pretty pictures of sulphation and sponge lead on the battery basics tab, along with text of the electrochemical reactions.
I won't link directly to it since I'm not sure of the rules regarding that :shock: and this isn't an ad for them, no affiliation, and I'd only get their product to reverse-engineer it anyway :lol: but very prety pictures anyway.
http://www.canadus.com/
hopefully the info will do someone good



Related info:

chinadepot.com

has lead-acid battery recon. videos, very detailed! I am thinking of doing this
if I can handle the acid requirements... it's not too bad, but I rent :lol:

nice find, Squid!

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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Thu Jan 29, 2009 5:03 am 
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I charge my friend mp3 player dead battery with joule thief charger. It does make the battery have longer life again.

I think you should try any BEMF recovery charger before buying anything. Even Imhotep relay charger should work if you add coil and remove the neon.

It is cheap too.
Imhotep relay charger component:
- a coil
- a relay
- a diode

Joule thief component
- a bifilar coil
- a transistor
- a resistor or variable resistor
- a diode

all the above should be less than 5 dollars if you already have 12V power source.

I never experience battery heating when charging at 60mA.


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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Fri Jan 30, 2009 12:34 pm 
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@sucahyo: thanks for the info. I didn't mean to imply a purchase... far too cheap for that (!) but I did want to share the pictures. The joule thief circuit looks very interesting, and I'm trying to cobble together a tougher relay for my IRO. Need to try zapping some old nicads I have (which are unchargeable with regular methods) with the IRO. It made a noticable difference on the super-sulphated car battery I charged, enough to get usable output from the "dead" beastie. I don't seem to remember where I looked at the joule thief circuit you mention, could you post a link to a schematic?
Thanks.


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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Sat Jan 31, 2009 2:27 am 
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Here is what I use:
Attachment:
joulethiefpwmfinal.png
joulethiefpwmfinal.png [ 4.3 KiB | Viewed 1168 times ]


I use the 12Volt part of a CT 1Amp transformer as coil for 12V version, but you can use any coil that can sustain the heat of 12V current. remove the neon or don't add secondary part to maximize charging.


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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Sat Jan 31, 2009 6:57 am 
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I fully agree, my IRO charges like a champ, however, sucahyo, your circuit is more advanced than what I use. My IRO version 1.3 has no neon and works quite well, but I have only run it @ 24 volts, which seems to make no difference except for the input amps (they are lower).

I'll try your circuit! Looks like a winner sucahyo!

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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Wed Feb 04, 2009 2:29 am 
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I found another charger circuit, it is the basic prinsiple of tesla switch. We must use relay but I found it better than Imhotep radiant oscillator because there is no spark. It seems to charge at the same speed as my joule thief even if the BEMF is much less. Only good as charger not as modified CFL lighter.

Attachment:
teslaswitch.jpg
teslaswitch.jpg [ 19.67 KiB | Viewed 1151 times ]


Because this doesn't need bifilar/trifilar coil, we can use car coil too.

To increase charging voltage we can also add another battery in the source part:
Attachment:
teslaswitchdouble.jpg
teslaswitchdouble.jpg [ 19.84 KiB | Viewed 1148 times ]


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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Wed Feb 04, 2009 4:21 am 
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bigsupersquid wrote:
@sucahyo: Need to try zapping some old nicads I have (which are unchargeable with regular methods) with the IRO...
Thanks.


You need a 50V cap to charge, then you zap the batts with + to + and -to -
and the cap will clear the shorted cells in a NiCad!!!

I have done this many times :D Works like a charm! THEN U can charge with the IRO
or other variant. I have some info on NiCad reconditioning, search it on this site.

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 Post subject: Re: commercial battery reconditioner ?
PostPosted: Wed Mar 04, 2009 6:58 am 
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I just recently built the charger by use 10000uF 50V capacitor as buffer. It work slight worst than normal charging but without heating up coil and transistor :). Although after running 7 hour a day, my transformer died dor unknown reason, maybe because I put magnet on top of it .......
Attachment:
capchargeroptoPNPNPN.jpg
capchargeroptoPNPNPN.jpg [ 23.43 KiB | Viewed 1098 times ]


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