Sealed Factory Activated AGM GEL Lead Acid Battery. No messing around with battery acid ā just fit and go! This type of battery can be used in any position and must be securely mounted to prevent any movement. Dynavolt [MG 7ZS-C] or GP Pro [GTZ7S] 12 Volt 6Ah Capacity [Cranking Amps 170] Dimensions (mm) ā L 114 x W 70 x H 106 Terminal configuration ā Negative [Black] LH front polarity Terminal type ā T 9 COPPER construction. Upgrade OR replacement for DTZ7S & CT6B-3 CTZ5-S Note ā Check terminal voltage prior to fitting. If below 12.6V, then charge the battery for best service life. Product may vary from image