Motobatt Battery MB5.5U 12v 7.4Ah (20Hr) CCA:90A 12N5.5-3B, 12N5.5-4A L:135mm x H:130mm x W:60mm

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.