Battery Type: Maintenance Free Lead Acid Battery; Voltage:12V; Capacity:17Ah; Weight:5.1kg; OEM is available, we can print your picture or logo on the battery case, we also can do the design for you. Packaging Detail:all in a carton;Seaworthy package. Features: 1.Safety:no leakage on battery terminal, ensure unsing in safe and reliable. 2.Maintenance free:due to all internal generated gas restore to water, do not need water replenishment. 3.No Free Acid:special separator adsorb slectrolyte, so there is no free acid inside battery, then battery can be installed in various position. 4. Long Lifetime: using corrosion-resistance of Pb-Ca alloy, to ensure battery has a long life.