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f-alpha.net » Physics » Electricity » Battery » Go on... » Experiment 15 - Practical Comments

Experiment 15 - Practical Comments (Single Battery)

Avoid short circuits

With batteries you have to avoid a short circuit under all circumstances and at all times. In the case of a short circuit a high current occurs. If the current finds no other load to consume its energy, the total energy is consumed by the internal resistance.

Determine state of charge

The state of charge of a battery can not be determined by simply measuring the voltage at the battery. Upon discharge of the battery the voltage dropped only from 9.0 V to 8.4 V.

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