VRLA (Valve Regulated Lead Acid) is the perfect battery for those who have better things to do than maintain a battery. The permanently sealed VRLA battery never needs to be topped up, but regular charging is necessary. Ideal for motorbikes, scooters, off-road vehicles, ride-on mowers and personal watercraft. Advantages: Leak-proof design means there is virtually no chance of leaks. Advanced lead-calcium technology increases starting performance. Sulphation inhibitor significantly reduces battery-killing plate sulphation. Long life means that Yuasa's maintenance-free high-performance batteries last up to three times longer than conventional batteries. Exceptional vibration resistance makes Yuasa the most reliable battery on the market today. VRLA batteries hold voltage longer and require less charging in standby or storage mode. Length: 152 mm. Width: 87 mm. Height: 107 mm.