Guest 6A/12V 1 Bank 120V Input On-Board Battery Charger - 28106

Guest On-Board Waterproof Battery Charger | 6A / 12V - 1 Bank (28106)

The Guest 28106 is a reliable, fully automated single-bank on-board battery charger designed for the rugged marine environment. Delivering 6 Amps of charging power, this unit is engineered to provide a high-quality charge and long-term maintenance for a single 12V battery. It is an ideal choice for personal watercraft (PWC), small fishing boats, or as a dedicated charger for a generator starting battery.

Advanced Multi-Stage Charging

The 28106 utilizes a sophisticated microprocessor-controlled 3-stage charging profile (Bulk, Absorption, and Maintenance). This process ensures that the battery is charged quickly to its optimal level and then held at a safe maintenance voltage. This "smart" technology prevents overcharging and plate sulfation, which are the leading causes of premature battery failure in seasonal marine applications.

Key Features:

• Dedicated Single-Bank Output: Delivers a full 6 Amps to one 12V battery bank for efficient recovery and maintenance.

• 100% Waterproof & Shockproof: Built with a fully potted (epoxy-filled) housing, the 28106 is rated for the most demanding conditions, protecting internal components from salt spray, humidity, and engine vibration.

• Universal Battery Compatibility: Specifically designed to safely charge and maintain both Flooded (Lead-Acid) and AGM batteries.

• Auto-Maintenance Mode: Once the battery reaches a full charge, the unit automatically scales back to a monitor mode, keeping the battery topped off during months of storage without "boiling" the cells.

• Comprehensive Safety Protection: Features integrated safeguards against Reverse Polarity, Over-Voltage, and Over-Current. It is also ignition-protected, making it safe for use in gasoline engine compartments.

• Compact and Lightweight: The low-profile design allows for installation in extremely tight spaces where larger chargers won't fit.

• Pre-Wired for Ease: Comes with 6-foot AC and DC cables, including ring terminals and an integrated in-line fuse for a secure, professional installation.

Technical Specifications:

• Model Number: 28106

• Total Output: 6 Amps

• Banks: 1

• DC System Voltage: 12V

• Input Voltage: 100–130V AC (50/60Hz)

• Dimensions: 6.4" x 3.5" x 2.25"

• Weight: 3.5 lbs

• Certifications: Meets USCG Title 33 CFR 183.410 requirements.

Why Choose the Guest 28106?

The 28106 is the perfect "install and forget" solution for boaters who want to ensure their engine starts every time they hit the water. It is a significant upgrade over portable clip-on chargers, offering a permanent, vibration-resistant mount that remains on the boat. It is specifically recommended for Group 24 and Group 27 batteries.

Installation Note:

For the best performance, mount the charger on a flat surface in a location that receives some ventilation. While the unit is 100% waterproof, keeping it away from direct exhaust heat will ensure it operates at peak efficiency during the high-output bulk charging phase.