Multiple bay battery chargers and circuitry

A multi-bay battery charger for recharging a first rechargeable battery and a second rechargeable battery, the multi-bay battery charger comprising:

• a power supply;
• a flyback converter including a transformer defining a primary circuit and a secondary circuit,
• wherein the primary circuit includes a primary control switch having a closed state for electrically connecting the transformer to the power supply and an open state for electrically disconnecting the transformer from the power supply,
• wherein the secondary circuit is operable to be electrically connected to the first rechargeable battery for supplying a first battery voltage and a first battery current to the first rechargeable battery, and
• wherein the secondary circuit is operable to be electrically connected to the second rechargeable battery for supplying a second battery voltage and a second battery current to the first rechargeable battery;
• a primary circuit controller in electrical communication with the primary control switch to apply a voltage pulse to the primary control switch for selectively closing the primary control switch;
• and
• a secondary circuit controller in electrical communication with the secondary circuit to electrically sense the first battery voltage, the second battery voltage, the first battery current and the second battery current being supplied by the secondary circuit to each rechargeable battery connected to the secondary circuit,
• wherein the secondary circuit controller is in further electrical communication with the primary circuit controller to provide a regulation voltage to the primary circuit controller for modulating a duty cycle of the voltage pulses provided by the primary circuit controller to the primary control switch, and
• wherein the secondary circuit controller modulates an amplitude of the regulation voltage as a function of the sensed battery voltage of each rechargeable battery relative to a maximum voltage threshold of each rechargeable battery and as a function of the sensed battery current of each rechargeable battery relative to a maximum current threshold of each rechargeable battery.