Purpose
Providint input energy, and receiving output energy from the system. Note that the same battery can’t be
used simultaneously as both input and output in this configuration; closed loop will not work.
Specifications
6 to 24 volt batteries / 12-volt lead acid batteries recommended.
Quantity
At least two: one for input, one for output. More recommended for experimental options (1) Control. An
identical battery to the input battery should be obtained for a control -- to test the discharge parameters of a
battery independent of the circuit under the same discharge parameters being put to the input battery for
characterization. (2) Additional batteries of the same voltage and impedance can be added to the output in
parallel (e.g. to graphically demonstrate more output than input). This is the widest and most crucial variable
in the system. Plan ahead the experiment you want to run before purchasing.
Tolerance
The voltage of the batteries is not crucial, and can be somewhere in the range of 6 to 24 volts for the SSG
energizer. However, the input and output batteries need to be matched in their voltage and impedance
(size). There can be more than one battery on the receiving end, connected in parallel, of a matched voltage
and impedance (size) of the input battery. For your first replication of this, you will want to use new batteries
so that bad batteries will not be possible reasons for malfunction of the circuit. Not all rechargeables are
suitable for receiving charge from this set-up. Lead acid recommended.
Sourcing
Google the word “battery” for the best source possible
Estimated Cost
$5 (or even free if you rummage) to $75 USD each, depending on make/source/size.
Battery Care
It will be important for you to know your batteries' optimal operating parameters form their manufacturer or
other competent rating service so that you do not damage them by charging or discharging too fast or
too high/low. As long as you are using the Bedini School Girl circuit to charge your batteries, you will not
need to worry about speed or level of charging. But if you use another apparatus to charge your battery, you
will need to know your batteries' charging parameters. If your input and output batteries are matched in
voltage rating and impedance (size) the circuit inherently balances the charging rate to a level that is not only
safe but even beneficial to the receiving battery. Overcharge is not nearly the concern with the Bedini School
Girl circuit as it is with other chargers. Batteries actually perform better under frequent use with the Bedini
School Girl circuit, than if you let a few days pass between uses.
Performance
Obtain the battery data sheets from the manufacturer or on the internet. The following curves are of
importance: Voltage, Current, Charge capacity, discharge Capacity profiles.