名词
中文翻译：Unknown
同义词：
['self-powered battery', 'self-charging battery', 'stand-alone battery']
例句：
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1.The self-contained battery has a lifespan of 500 cycles.
这种自给电池有500个循环寿命。
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2.The new self-contained battery is more efficient than the old one.
这款新的自给电池比旧款更高效。
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3. The self-contained battery is perfect for outdoor use as it doesn't require recharging.
这款自给电池非常适合户外使用，因为它不需要充电。