However, the lead-acid batteries require recharging which may produce carbon dioxide, depending on the energy supply source.

Even if cycled daily, such batteries would only require replacement/recycling every 55 years or so.

Zinc-air batteries type PR44 require air to work.

Hydrogen presents an advantage over batteries in this case, since batteries require a long charging time and need to be replaced periodically.

No batteries required, though a bit of a.c. to drive the pump.

These batteries require minimal maintenance, as they cannot and usually do not need to be refilled with water.

Like all the new cordless machinery, the tool is only as good as its batteries and this sander requires a full charge to be effective.

Natural pyrolusite has been used in batteries, but high-quality batteries requires synthetic products.

I'm afraid that your watch's battery will require replacing rather soon as well.

The battery requires from 0.15 to 0.3 kg of lithium per kWh.