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What happens during the charging process is this: During charging, an external electrical power source (the charging circuit) applies an over-voltage (a higher voltage than the battery produces, of the same polarity), forcing a charging current to flow within the battery from the positive to the negative electrode, i.e. in the reverse direction of a ...

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The power consumed by your circuit determines how fast the battery drains. P = I * E: power (Watts) is found by multiplying the current (Amps) by the voltage (Volts). Since your battery has a (reasonably) constant voltage under normal operation, current is the variable here. I = E / R, amps = volts / ohms. If we combine these two equations, we get P = E ^ ...

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You can think of charging the battery as being like charging a leaky capacitor - ie one which has a high (but not infinite) resistance dielectric material between its plates. So you connect the + terminal of the DC supply to the + electrode of the battery/capacitor, and likewise for the - terminal/electrode. The DC supply drags electrons from the + ...

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The battery which if working normally has within it a chemical reaction occurring which produces a potential difference across its terminals which in your case is $12$ volts. When an external conducting circuit is connected to the terminals of the battery a current flows from the positive terminal, through the external conducting circuit, to the negative ...

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A battery is conceptually very similar to a water pump. A pump creates a pressure difference between its two ends so water flows in an external circuit from the high pressure end, through the circuit and back to the low pressure end. A battery creates a difference in the electrical pressure$^1$ between its two end so electrons will flow out of the anode, ...

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This is to do with the way batteries work. Batteries store their energy chemically and the release of electrons is due to a chemical reaction in one side of the battery which are 'collected' by another chemical reaction in the other side. This is termed a Galvanic cell. To create a AC current, the chemical reaction in each side of the cell would periodically ...

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