How should batteries be stored?

Proper battery storage helps extend battery lifespan. Storage recommendations differ per battery type:

• Li-ion and LiPo batteries: Store at approximately 50% charge in a cool, dark, and dry place. Never store fully charged or fully discharged batteries.
• Lead-acid batteries: Fully charged AGM and gel batteries can generally be stored unused for up to 6 months at around 20 °C ambient temperature.
• NiCd batteries: Best stored at approximately 40% charge to minimize capacity loss. Under proper conditions, NiCd batteries can often be stored for 3 to 5 years.