What does a battery do?

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Multiple Choice

What does a battery do?

The battery stores chemical energy and can deliver it as electrical energy when needed. It provides the high current required to crank the starter motor, so the engine can start. It also acts as a voltage reservoir, smoothing out spikes and dips in the electrical system to protect electronics and keep other loads stable. While the engine runs, the alternator normally supplies most electrical power, but the battery steps in if the demand briefly exceeds what the charging system can provide. It can also power accessories when the charging system can’t meet all the needs. The battery does not convert fuel into electricity; that conversion is done by the alternator (with energy ultimately provided by the engine).

The battery stores chemical energy and can deliver it as electrical energy when needed. It provides the high current required to crank the starter motor, so the engine can start. It also acts as a voltage reservoir, smoothing out spikes and dips in the electrical system to protect electronics and keep other loads stable. While the engine runs, the alternator normally supplies most electrical power, but the battery steps in if the demand briefly exceeds what the charging system can provide. It can also power accessories when the charging system can’t meet all the needs. The battery does not convert fuel into electricity; that conversion is done by the alternator (with energy ultimately provided by the engine).

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