Product Overview
Guest Charger 30 Amp-3 Bank

Keep your batteries topped off and ready for action with the Marinco Guest Charger 30 Amp-3 Bank. This powerful and reliable onboard charger ensures your 12V batteries are always at peak performance, whether you're powering trolling motors, electronics, or other onboard systems. Its advanced 5-stage charging process optimizes battery health and longevity, while the rugged, waterproof design stands up to the harshest marine environments. Spend less time worrying about your power and more time enjoying your time on the water.
Key Features
- **3-Bank Charging:** Independently charges and monitors three 12V batteries (up to Group 31), perfect for complex electrical systems.
- **30 Amp Total Output:** Delivers 10 amps per bank for fast and efficient charging.
- **Fully Automatic 5-Stage Charging:** Optimizes battery health and extends lifespan with precision charging.
- **Waterproof and Shock-Resistant (IP67):** Built to withstand harsh marine conditions, ensuring reliable performance.
- **Easy-Read LED Indicators:** Clearly displays the charging status of each battery bank at a glance.
- **Built-in Safety Features:** Reverse polarity, over-current, over-voltage, over-temperature, and ignition protection provide peace of mind.
- **Pre-wired for Easy Installation:** 6-foot prewired cables simplify the installation process.
- **Lightweight and Compact Design:** Saves space and weight without compromising performance.
Specifications
The Captain's Take
After years of battling unreliable onboard chargers, I finally found a solution I can trust: the Marinco Guest Charger 30 Amp-3 Bank. This charger is a workhorse, consistently delivering the power I need to keep all my systems running smoothly. The individual bank monitoring gives me the confidence that every battery is properly charged, and the waterproof design means I don't have to worry about corrosion or damage. It's a solid investment for any serious boater.