Just as lithium-ion batteries have made nickel-cadmium cells boring and old hat ... in a practical sense by tearing down a GaN phone charger. The charger in question is a 30 watt USB-C charger ...

The condition of rechargeable nickel cadmium and nickel metal hydride ... are approximately one micron across. If the battery sits in the charger too long or is not fully discharged, over time ...

(NiMH) A rechargeable battery technology that has approximately 30-50% more charge per pound than nickel cadmium. Introduced in the early 1990s, it uses nickel and metal hydride plates with ...