OverUnity Lead Acid Battery Switching Circuit - Self Battery Charging

[magpwr]

Hi All,

Please re-define the title correctly To Lead-ACID battery DESULFATOR .It's misleading.Please don't be offended.

I have already build a battery desulator base on PIC12F629 using 8 pin micro-processor could recover even 0.9v maintenance free Lead-acid battery(2Ah) to 12volts in 2days.

Even some of circuit people build tend to use a "lead-acid battery" when they noticed a rise in battery voltage ,the creator of circuit thought they have have created OU device.
They didn't know they have merely created a good battery desulfator device.

A real OU device should be running on ultra-caps or nimh battery where the internal self-discharge rate is higher.If there is voltage increase in cap or nimh then it could be the real deal without using any input batteries.

The switching cycle is 55us on with 1s off in infinte loop for programming the PIC12F629.This is just a replica of 555 base found in instructables site.I did micro-processor version merely to lower component count.

Please look at this link where i posted full finding around 2 years ago and even mentioned the 2 ways to check a 12volt battery(If the internal resistance is being lowered) while it's being desulfated or after desulfated.

http://www.instructables.com/id/PIC12F629-Lead-Acid-Battery-Desulfator/

[segar]

HI, magpwr i have see your circuits and some explanation about your circuits you have built and tested as so far in the low current and the standard voltage , i have some question on it about this ,and i need your advice on this questions.

1. the circuits you build is low current and the L1 ,value of inductor its 1mH ,and the L2 ,220uH ,if this two component is i change to any other value for charging the battery of 60aH/24VDC battery bank means ,how to i design this coil for reach that current to have charge in the 6.or 8 hours duration charging time ,can you give some advice on this,please.

2. my system battery bank is 24v/60ah and my planing is to drive the lamp,dvd,computer,and etc, atleast for the 3.to 4 hrs time, and i want to connect with 1000watt inverter system for drive this load after the full charge the battery bank of i mentioned.


please advice for my design and for testing in my home projects  .

thank you

[magpwr]

Hi Segar,

I have not tested on 24volt battery but i believe the only component you need to amend from my circuit is

R1=1K OR 1.2Kohms
D2:1N5819

IRFZ44V needs to be changed(Currently 60v but spike is around 44v for 12volts on bad batteries).
You merely need to get mosfet which could support at least 120v or 150v.
If you purely using it for maintenance of existing good batteries then mosfet could be 100v.

Please leave fuse at 500mA.

I have used car battery with ups(not using internal ups battery) on my pc\monitor.It works.
I'm unable to advise further.sorry.

[segar]

HI, magpwr   

i have read your reply and understand ,so thank you very much your support and reply to me as fast, will keep and touch with you

thank you my friend

[Google]

The overunity quacks like bedini and bearden have done more harm to the name of Tesla than anyone else.