Which of the following battery chemistries is rechargeable?

Nickel-metal hydride (NiMH), Lithium-ion (Li-ion), and Lead-acid are all common types of secondary cells, meaning they are designed to be recharged. Lead-acid batteries are commonly used in vehicles and heavy backup power systems, while NiMH and Lithium-ion are widely used in portable radios and electronics. Because every individual chemistry listed in the options is capable of being recharged multiple times by applying a reverse electrical current, 'All these choices are correct' is the right answer.