
Optima® Batteries
- Provide more usable power than the competition
- Unequalled vibration resistance
- Advanced Spiralcell technology with AGM
- Low self-discharge rate
- Nonspillable and maintenance-free
- Super-fast charging
Optima batteries provide more usable power, unequalled vibration resistance, and the cranking power needed to start all of today's largest boat engines. Advanced Spiralcell™ technology, made up of high purity lead plates wound with an
electrolyte-absorbing glass mat, provides extremely high power and very low internal resistance. Compared to conventional batteries, they have up to two times the life and 15 times more vibration resistance. A low self-discharge rate means that when stored with a full charge, they can sit for a year and still start your boat. They also have a higher reserve capacity over time, are nonspillable, maintenance-free and can be charged in as little as one hour. All come with a 24-month warranty. D34M fits in a Group 24 battery box and D31M fits in a Group 27 battery box.