Nowadays, life can easily come to a halt when our gadgets are out of battery. Dr Ka Fung talks about the technology of our daily lifeline - rechargeable batteries.
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Modern day lifeline: rechargeable batteries
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Nowadays, life can easily come to a halt when our gadgets are out of battery. Dr Ka Fung talks about the technology of our daily lifeline - rechargeable batteries.
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Source: SBS
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