LONG-LASTING POWER BETWEEN CHARGES: With its Long-Life Ion Core technology, Duracell Rechargable Pre-Charged NiMH AAA batteries are designed for heavy-use devices like video game controllers, wireless electronics, baby monitors, and more. PRE-CHARGED AND READY TO USE: Duracell Rechargable AAA batteries come pre-charged and will hold a charge for up to 1 year when not in use. GUARANTEED FOR 10 YEARS IN STORAGE: Duracell guarantees each Pre-Charged NiMH AAA battery to last 10 years in storage, or 400 charges, whichever comes first, and they will hold a charge for up to 1 year when not in use. # 1 TRUSTED BATTERY BRAND: From storm prep to holiday needs, Duracell is the # 1 trusted battery brand. QUALITY ASSURANCE: With Duracell batteries, quality is assured; every Duracell product is guaranteed against defects in material and workmanship. AVAILABLE SIZES: Duracell Rechargeable Pre-Charged NiMH batteries are available in AA battery (Double A battery) and AAA (Triple A battery) sizes.