Motobatt Battery MBU1-35 12v 37.1Ah (20Hr) CCA:420A U1-7, U1-9, U1-32 L:195mm x H:180mm x W:130mm

Motobatt batteries are a sealed unit, so no need to mess with Electrolyte/Acid.
This battery comes with 2 years manufactures warranty. To make the warranty valid, you must register the warranty within 21 days of making the order.