When the AMSAT-OSCAR 7 (AO-7) amateur radio satellite was launched in 1974, its expected lifespan was about five years. The plucky little satellite made it to 1981 when a battery failure caused it ...

The new battery achieves an unprecedented energy density. Scientists make stunning breakthrough in battery efficiency — here's how it could reshape transportation first appeared on The Cool Down.

That’s precisely what happened to [Larry G] when the now antiquated 7.2V NiCd batteries used by his cordless drill became too hard to track down. The drill was still in great shape and worked ...

Even the best rechargeable NiCad batteries do not perform as long on a single charge as the same number of single-use alkaline. However, for power-hungry items such as CD players, games and other ...

Memory Protection Battery - replacable. NiCad battery. Universal replacement for DIGI*TRAC memory protection. 2 leads solder to motherboard - thereafter replacable without soldering using plug ...

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.