Guest On-Board Waterproof Battery Charger | 10A / 12V - 1 Bank (2710A)

The Guest 2710A is a rugged, single-bank on-board battery charger designed for boaters who need a dedicated, high-performance charging solution for a single 12V battery. Part of the ChargePRO series, this unit delivers a full 10 Amps of charging power, making it an ideal choice for quickly recovering a single deep-cycle house battery or ensuring a primary starting battery is always mission-ready.

High-Output Digital Charging

Despite its compact size, the 2710A utilizes a sophisticated 5-stage charging algorithm (Analyze, Soft Start, Bulk, Absorption, and Maintain). This microprocessor-controlled process ensures the battery is charged safely and efficiently, conditioning the plates to extend the overall lifespan of the battery. Its 10-amp output is significantly faster than standard 5-amp "trickle" chargers, allowing for a much quicker turnaround between trips.

Key Features:

• High-Performance Output: Delivers a dedicated 10 Amps to a single 12V battery bank.

• 100% Waterproof (IP67): The completely sealed, epoxy-potted housing is shockproof and waterproof, designed specifically for the high-vibration and high-moisture environment of a boat’s bilge or storage locker.

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

• Auto-Maintain Technology: Once the battery reaches a full charge, the charger enters a long-term maintenance mode, monitoring the voltage and only applying current when necessary.

• Comprehensive Safety: Built-in protection against reverse polarity, over-current, over-voltage, and over-temperature. It is also ignition-protected for safe use in gasoline engine compartments.

• Expanded LED Display: Clear visual feedback indicates the stage of charging and alerts the user to any wiring or battery faults.

• Compact Footprint: The flangeless, extruded aluminum housing is designed to fit into tight spaces where larger multi-bank chargers cannot.

Technical Specifications:

• Model Number: 2710A

• Total Output: 10 Amps

• Banks: 1

• DC System Voltage: 12V

• Input Voltage: 90–135V AC (50/60Hz)

• Dimensions: 7.5" x 6.4" x 2.4"

• Weight: 4.1 lbs

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

Why Choose the Guest 2710A?

The 2710A is the perfect "workhorse" for solo battery systems. It provides the high-amperage bulk charge needed for Group 27 and Group 31 batteries, which are often found on center consoles, small runabouts, and as dedicated electronics batteries on bass boats.

Pro Tip for Installation:

While the 2710A is 100% waterproof, try to mount it on a vertical surface with the cooling fins running vertically. This encourages "chimney-effect" cooling, which helps the charger stay at peak efficiency during the high-output Bulk charging phase.