Absolutely maintenance-free. Delivered with a pre-formed acid pack, like a squeeze bottle that contains the exact volume and acid concentration. Designed for use in a wider temperature range, from -20°C to +50°C. The unique gas recombination system along with AGM technology (Absorbed Glass Mat or fleece technology) significantly extends the battery's lifespan and additionally, this battery has higher starting power. Nitro Battery, maintenance-free, 2.5kg, 12 volts, and 6 Ah. The robust design is engineered for optimal performance and reliability, making it suitable for a variety of applications including motorcycles, ATVs, and more. Its superior vibration resistance ensures durability even under the roughest conditions, providing dependable power for your vehicle. This advanced battery is engineered to meet the demanding needs of modern vehicles, offering consistent performance and longevity. Easy installation and enhanced safety features make it a trustworthy choice for long-term use.