12V Smart Multi-Stage Battery Charger - 20A / 250W

Overview

This compact 12V battery charger is your go-to solution for efficient multi-stage charging and reliable battery protection. Perfect for RVs, vans, boats, and off-grid applications, this charger supports a variety of battery types and can revive over-discharged lithium cells. With its adaptable control inputs, it seamlessly aligns with alternators and current conditions, all within a sleek, energy-efficient design.

Benefits

• Ensure your auxiliary batteries are primed for use, providing dependable power for your appliances and electronics whenever you need it.
• Automatically safeguard your starter and house batteries, minimizing the chances of unexpected breakdowns and expensive replacements.
• Streamline your charging process with automatic multi-stage profiles customized for different battery chemistries.
• Charge safely using older or smaller alternators through a low-current mode, preventing strain and overheating.
• Enhance battery longevity by adapting charging methods based on temperature and protecting against over-voltage or reverse currents.

Features

• Works with 12V AGM, flooded, gel, and lithium batteries for versatile usage across multiple vehicles and systems.
• Easily connects to your 12V starter battery and is compatible with both smart and traditional alternators.
• Offers smart charging profiles: 2-stage for lithium and 3-stage (Bulk, Absorption, Float) for lead-acid batteries.
• Revives over-discharged lithium batteries automatically, allowing them to accept a charge again.
• Includes built-in safeguards against over-voltage, over-temperature, and reverse polarity to protect both equipment and batteries.
• Features battery isolation to prevent reverse current between batteries, ensuring the starter battery is protected.
• D+ ignition terminal enables charging only when the engine is running, safeguarding the starter battery from draining.
• Provides a low-current (10A) mode through the LC terminal for use with smaller alternators and weak power sources.
• RJ11 temperature sensor port adjusts charging voltage based on hot or cold conditions (not applicable for lithium batteries).
• Note: D+, LC cables, and a temperature sensor are not included.

Specifications

• Output nominal power: 250 W
• Output nominal current: 20 A
• Operating current range: 18 to 22 A
• Low current mode: 10 A
• Floating charge current: 3 to 5 A
• Low current mode range: 8 to 11 A
• Quiescent current: less than 0.45 A
• Ripple voltage: less than 500 mV rms
• Battery charging mode: 3-stage type for lead-acid
• Efficiency: greater than 85 percent at 14 VDC, 30 percent load
• Input nominal voltage: 12 VDC
• Operating voltage range: 10 to 16 VDC
• Input current limit: up to 34 A
• Dimensions: 8.4 x 7.4 x 3.1 in (213 x 188 x 79 mm)
• Weight: 4.0 lb (1.8 kg)