Nickel-cadmium batteries were the first widely used rechargeable batteries for household electronics and were popular through the end of the 20th century. But they had their pitfalls. Cadmium is ...

Nickel-cadmium and nickel-metal hydride are alternatives ... It's a lot more cost-effective to use rechargeable batteries for toys and accessories than to burn through disposal alkaline batteries.

Cellphones of the past came equipped with rechargeable nickel-based batteries with (Ni-Cd and NiMH). In the past few years, however, most rechargeable batteries used in phones are Lithium-based.

rechargeable batteries, lithium cells, nickel-cadmium, sealed lead acid, button-cell, cell-phone batteries, laptop batteries, etc. For large and/or unsealed battery types, use the HMW tag for disposal ...

A scheme of the rechargeable battery made of cement. Image: Chalmers University In the testing phase, the academics used a commercial charger for rechargeable nickel-cadmium (Ni-Cd) batteries.