Recharging Batteries using only voltage spikes. A Results Log Thread

[jeanna]

Hi everybody,

This thread is a place to post your results (or not) using high voltage spikes to recharge batteries.

Any batteries
Any voltage
Any frequency

It will be useful to include:
- the chemistry/type of the battery and its normal voltage level
- the type of circuit you are using to make the voltage spikes
- the beginning and ending voltage of the primary or source battery
- the beginning and ending voltage of the charged battery along with
- the charging time to raise it to that level
- the work it can do after it is charged

Since it is claimed that this type of charging can take over 20 cycles of charge and discharge to condition the battery to receive spikes, please include what number of cycles the battery has completed and other necessary details.

Thank you,

jeanna

[jeanna]

I began to experiment with this kind of charging over a month ago. Here is what I have seen.

The battery is a 1.2v Nicd battery with 500mAH printed on its label.
It was in a sorry state where it could only be recharged to 1.28v then would stop working at 1.23v.
So, I thought it was a good candidate for this kind of test.
Bedini says Nicd's recharge well with spikes.

I charged it from the secondary of a jtc which gives  70V spikes at a rate of 45khz.
After recharging, I either let it rest a bit or put it directly into a germanium based joule thief with 1 led in the C-E and count the time the light is on.

At first the light continued to turn off when the battery was at 1.23v, and it did this in less and less time.
I needed to take drastic measures to break into the lower end crystals.
I actually used the jtc with the germanium transistor to pull down the battery.
It did not work. The light went off at 1.23v

What really worked was to put the battery into a jtc running a LoA bulb from its secondary.
This circuit continues to drain a battery well below the turn on level of the transistor.
This worked and on the 5th cycle I had a working range of 1.19v -- 1.31v which immediately relaxed to 1.27v

However, by the next day the battery under load only flashed briefly then went out.

That was rock bottom. (and a little discouraging)

The range remained very narrow and I continued to drain the battery with the jtc with the LoA bulb on the secondary.

Finally on the 9th cycle, the range began to widen and the length of time under load increased.
After this 9th cycle, the Nicd filled to 1.36v after 10 hours of recharge.
The time it lit a jtc was just under an hour.

Each day after that it improved more.
The time to support the load increased and also the brightness of the light increased.

At the end of the 16th recharge the light went on very very bright and stayed bright for longer than 2 1/2 hours.

then I packed it away and must have shorted it.

-----------------

But, I did not need to start ALL over again.
It took 5 cycles to bring it back to the 2 1/2 hour load time.

I popped a normal healthy and charged Nicd into the same circuit and it light much brighter for over 5 hours, so there is a way to go.

Today, after 10 recharges since the short, the led is at full brightness for more than 2 1/2 hours.
---------------

I have devised a way to measure the brightness of the led.
I hold my hand or a paper a distance from the top of the bulb and measure the distance to where the light is too diffuse.
Soon, this will not be a good measurement, because yesterday the light hit the ceiling of the room for over 2 hours.

=============
Next time I will lower the charger circuit to have spikes just twice the height of the full battery level. I betcha I wasted about 67v in each spike. 

thank you,

jeanna

[guruji]

Hi Jeanna interesting what you've expermented. Today I was reading JB starters guide about batteries and he says the same what you've experienced that batteries after certain cycles of charge and discharges become better.
Thanks

[The Observer]

Here's some info.

The Observer

[jeanna]

Hi Guruji,
Yes, I got that info from John.
My hope was that a joule thief circuit could do it.
I know someone recharging a much bigger 12 or 18v battery, but he is not ready to post yet, so there will be some wonderful information.
Do you have a battery to charge with the secondary of a joule thief?
It will be great to hear how it goes for you too.

@observer,
I am not sure what this means??
It was resonating between 2 batteries?
Is this a recharging process?

thank you,

jeanna