The batteries are being sold for use in rechargeable power tools, which require large bursts of power and are often operated in harsh environments.

他们的电池已经被用在需充电的电力工具里，这些工具往往在非常恶劣的环境中工作，并需要很大的电量。

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In 1985, along with business partner Roy Chung Chi-ping, he founded Techtronic Industries in Hong Kong, which had six employees and focused on producing rechargeable battery packs in hand tools.

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