Power You Can Count On, Rain or Shine
Whether you are boating, cruising, or sailing, we offer top-tier options from trusted brands like Lifeline, Deka, Fullriver, Intimidator, Ramcar, and Trojan. Let us help you find the perfect battery to power your boat.
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Marine Starting Batteries for Quick Engine Starts
Available in Flooded & AGM 12-volt options, marine starting batteries are designed to deliver high cold cranking amps (CCAs) for quick and reliable engine starts. These batteries are perfect for ensuring smooth starts on any type of boat.
View Starting Marine Batteries Flooded Features:
- High Cranking Power for Quick Engine Starts
- Widespread Availability
- Economical
- Maintenance-Free & Maintenance-Accessible Options
- Marine Battery Terminals: automotive post and wingnut for quick removal
- Not Recommended for Deep-Cycle Service
AGM Features:
- High Cranking Power with Deep-Cycle Capabilities
- Extra Reserve Power for Emergencies
- Unbeatable Vibration Protection
- High Freeze Resistance for All-Weather Service
- Maintenance-Free and Spill-Proof Design
- Safe Around Electronics
- Submersible
Dual-Purpose Marine Batteries for Versatile Power
Flooded 12-volt batteries provide both starting power and moderate deep-cycle capabilities, ideal for boats with basic accessories and power demands. With extra reserve capacity, these batteries strike a balance between cranking power and power storage.
View Dual-Purpose Marine Batteries Features:
- Higher Starting Power with Deep-Cycle Capabilities
- Extra Reserve Capacity for Accessory Loads
- Marine Terminals: automotive post and wingnut terminals for quick removal
- Conventional Flooded Design
- Maintenance Accessible
Flooded Marine Deep Cycle Batteries for Lasting Power
Available in 12-volt and 6-volt options, flooded deep-cycle batteries are built to provide long-lasting power for auxiliary systems like trolling motors, fish finders, and cabin electronics. These batteries are perfect for extended outings and heavy accessory use.
View Flooded Marine Batteries Features:
- High Reserve Capacity
- Modest Starting Power
- Economic
- Widespread Availability
- Built to Withstand Deep-Cycle Discharges
- Marine Terminals: Automotive Post & Wingnut Terminal Options
- Conventional Flooded Design
- Maintenance Accessible
AGM Marine Batteries: Built for Extreme Use
AGM batteries provide superior starting and deep-cycle service, ideal for sailboats, pleasure yachts, and recreational boats with additional power demands.
View AGM Marine Batteries Features:
- Superior Starting and Deep Cycle Service
- Extra Reserve Power for Emergencies
- Faster Recharge Time vs. Flooded
- Micro-Porous Glass Mat Separators Prevent Acid Spills and Terminal Corrosion
- Lower Internal Resistance for Higher Discharge Rates and Faster Starts
- Unbeatable Vibration Protection for Rough Waters
- High Freeze Resistance for All-Weather Service
- Suitable for Start Bank and House Bank Systems
- Maintenance-Free and Spill-Proof Design
- Safe Around Electronics
- Submersible
- Available in 6 and 12 Volts
Gel Marine Batteries: Unmatched Cycle Life
Gel batteries offer superior cycle life, making them perfect for long-term power applications in boating. With slower reaction times, they provide up to 2x the cycle life of AGM batteries at 50% depth of discharge.
View Gel Marine Batteries Features:
- Tolerates Excessive Discharges better than AGM and Flooded Batteries
- Extra Reserve Power for Emergencies
- Superior Vibration Protection for Rough Waters
- High Freeze Resistance for All-Weather Service
- Maintenance-Free and Spill-Proof Design
- Lower Internal Resistance
- Low Self-Discharge Rate
- Ideal for Recreational Boats, Solar, and Wind Systems
- Safe Around Electronics
- Submersible
Comprehensive Battery & Electrical Services
United Battery offers full battery and electrical services, from custom alternator rebuilding to battery replacement and registration.