3K Battery 3-MAX is Maintenance Free (MF) that developed from Advance X-Treme series.

• Endurance: Apply Tin Alloy to the grid lattice for corrosion resistance in high temperature.
• Long Lifespan: Apply Red Lead to the positive plate for protecting active material was shedding and stability of power distribution.
• High Power and Safety: X-Filter design for flame arrestor and protect a battery explode during working on.