Smart Charger 12V/24V 5A-20A

The Mariner Direct Smart Charger is a high-efficiency, automatic charger designed for a wide range of 12V and 24V batteries. With selectable output—up to 20 amps for 12V systems and 10 amps for 24V—it delivers fast, reliable power while protecting your batteries from overcharging and damage.

Key Features and Benefits:

• Wide Compatibility:

  • Automatically recognizes 12V or 24V systems

  • Supports lithium, LiFePO4, and lead acid batteries (AGM, GEL, EFB, MF, VRLA, SLA, flooded, wet)

  • Suitable for use with cars, trucks, motorcycles, SUVs, golf carts, agricultural equipment, and boats

  • Supports battery capacities from 2Ah to 300Ah (larger capacities will require longer charge time)

• Charging Performance:

  • 12V output up to 20A; 24V output up to 10A

  • Smart CPU-controlled 7-stage charging: bulk, absorption, float, desulfation, and more

  • Pulse repair function helps recover sulfated or acid-stratified batteries

  • Maximum charge voltages:

    • Lithium: 12.4V / 24.8V

    • LifePO4: 14.6V / 29.2V

    • Lead acid: 14.7V / 29.4V

  • Minimum starting voltage: 1V (note: will not activate a fully depleted battery)

• Built-in Protections:

  • Overcurrent, overvoltage, short circuit, and reverse polarity protection

  • No-spark operation with flame-retardant materials

  • Integrated cooling system and temperature compensation

  • Automatically enters trickle mode when charging is complete

• User Interface:

  • Large, easy-to-read LCD displays charging status, battery percentage, temperature, voltage, current, and seasonal mode

  • Easy operation: plug in, select battery type and current, and let the smart charger do the rest

  • 13-foot cable length offers flexible setup

• Quality and Support:

  • Durable build (6.22 x 3.54 x 1.97 in, 520g)

  • AC Input: 100–240V, 50/60Hz

  • Max power load: 280W

  • Includes charger unit, 3-meter power cord, cable clips, and manual

  • Backed by dedicated customer support and permanent after-sale service

Whether you’re maintaining your vehicle’s battery between uses or reviving a deeply cycled power source, the Mariner Direct Smart Charger delivers dependable, intelligent charging performance in one rugged, all-in-one solution.