Sailnovo 4A Battery Charger – 6V/12V Smart Trickle Charger with 10-Stage LiFePO4 Maintainer

All-in-One Power Care for 6V and 12V Batteries

The Sailnovo 4A Battery Charger is a versatile, all-in-one solution designed to keep cars, motorcycles, boats, lawn equipment, and more ready to go. It combines charging, maintenance, trickle charging, and pulse desulfation in a single unit. Built for 6V and 12V lead-acid batteries as well as LiFePO4 chemistry, it adapts to your battery’s needs with a simple plug-in experience. The unit’s robust design supports an operating range from -4 F to 104 F (-20 C to 40 C), making it suitable for a wide range of climates and seasons.

What it does at a glance

• 10-stage intelligent charging program that monitors voltage and adjusts current for safe, thorough charging
• Maintenance and trickle mode to prevent sulfation and preserve battery health
• Large LCD display showing status and voltage, with maintenance indicators
• Supply mode to power small 12V devices or act as a memory keeper when replacing a battery

Wide compatibility and flexibility

• Works with 6V and 12V lead-acid variants: flooded, gel, AGM, VRLA, and maintenance-free
• Also compatible with 12V LiFePO4 batteries in addition to lead-acid chemistries

Smart, safe, and easy to use

• Auto temperature adaptation to prevent overcharging in hot climates and undercharging in cold climates
• Spark-proof circuitry and automatic reversed-hookup detection for safe connections
• IP65-rated protection for weather resilience and peace of mind
• Lightweight at about 0.65 kg, with a 5-foot output cord and flexible cables

Designed for real life

The 5-foot cord length makes it easy to reach batteries in vehicles, boats, or equipment stored in garages or sheds, with a compact footprint for home use.

What you get and how it helps

• 1 x Sailnovo 4A Battery Charger
• 5-foot output cord
• Fused-ring terminal harness for hard-to-reach batteries
• Alligator clip cables for versatile connections
• Wall-mount hooks for tidy storage
• Lightweight design that travels with you for on-the-go maintenance

Safety, warranty, and support

With upgraded spark-proof circuitry, automatic reverse-hookup detection, and IP65 protection, Sailnovo offers confidence when keeping batteries healthy. A generous 2-year quality assurance and 12-month refund are part of the after-sale service to help you stay powered up.