This is a sealed, Lead Calcium battery that delivers a full 7 amp-hours of power. This battery has a 90 day warranty through Hobby Services. FEATURES: You never need to add electrolyte and it will work in any position. These are sealed, leak proof, and there is never a need to check the electrolyte levels. INCLUDES: One 12V 7Ah gelcell battery SPECS: Length: 5.9" Width: 2.5" Height: 3.6" Weight: 5.25lb.