APC Replacement Battery Cartridge #118 Ensures clean, uninterrupted power to protected equipment while batteries are being replaced Batteries & Runtime Battery Volt-Amp-Hour Capacity 600 Battery Type Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Battery mounting Enclosed battery cartridge Expected Battery Life (years) 3 - 5 RBC™ Quantity 1 Battery blocks per string 10