Guest On-Board Waterproof Battery Charger | 8A / 12V - 2 Bank (2707A)

The Guest 2707A is a compact, entry-level dual-bank on-board battery charger designed for small boats with a two-battery setup. Delivering a total of 8 Amps—distributed as 4 Amps per bank—this unit is perfect for maintaining a starting battery and a small house battery, or for charging a 24V trolling motor system on smaller vessels like jon boats, small skiffs, or bass boats.

Efficient Multi-Stage Charging

The 2707A features Guest’s advanced digital technology, utilizing a 5-stage charging algorithm (Analyze, Soft Start, Bulk, Absorption, and Maintain). This process ensures that each battery is charged independently and conditioned to extend its service life. Despite its smaller amperage, it provides a smart, safe charge that is significantly more effective than a basic manual automotive charger.

Key Features:

• Dual-Bank Independent Charging: Provides 4 Amps per bank, allowing for the simultaneous charging and sensing of two 12V batteries.

• 100% Waterproof (IP67): Sealed in a rugged, shockproof housing that is completely waterproof, making it ideal for the high-moisture environments of smaller boats where equipment is often exposed.

• Sense-Send Technology: Intelligently monitors the state of each battery bank and sends the appropriate amount of current to each one independently.

• Universal Compatibility: Optimized for all 12V Flooded (Lead-Acid) and AGM batteries.

• Smart Maintenance Mode: Once the batteries are fully charged, the unit automatically enters a maintenance mode to keep them topped off during the off-season without damage.

• Built-In Safety: Features integrated protection against reverse polarity, over-current, over-voltage, and over-temperature.

• LED Status Monitor: Clear LEDs indicate when the unit is charging, conditioning, or when the batteries are ready for use.

Technical Specifications:

• Model Number: 2707A

• Total Output: 8 Amps (4A / 4A)

• Banks: 2

• DC System Voltage: 12V or 24V configurations

• Input Voltage: 90–135V AC (50/60Hz)

• Dimensions: 7.5" x 6.4" x 2.4"

• Weight: 4.7 lbs

• Cabling: Pre-wired 6' AC and DC cables with ring terminals and in-line fuses.

Why Choose the Guest 2707A?

The 2707A is the ideal "value" choice for the casual boater. It is specifically designed for smaller battery sizes, such as Group 24, providing a gentle yet thorough charge that is perfect for overnight recovery. Its compact footprint makes it incredibly easy to mount in the small consoles or storage lockers typically found on 14'–17' boats.

Installation Note:

For 24V systems, simply connect one set of leads to the first battery and the second set to the second battery. The charger is designed to work with batteries wired in series, so you do not need to disconnect your trolling motor wiring to charge.