***SEE NOTES***4 Bank 40A Waterproof Onboard Charger 10A per Bank Marine Battery Charger

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• 【4-Bank 40A Total Output (10A Per Bank) for Fast Multi-Charging】This 10 amp battery charger 10X4: 4 bank marine battery charger provides a total charging power of 40A, with 10A independently controlled current per bank, allowing you to charge four 12V boat battery simultaneously without mutual interference. Compared with single-bank chargers, it cuts charging time by up to 75%, efficiently powering marine battery, starter, and deep-cycle batteries. It is perfect for RVs, boats, off-grid systems, and workshops that rely on multiple trolling motor battery for daily use. As a high-performance 4 bank battery charger, it greatly improves charging efficiency for multi-battery setups.
• 【Wide Battery Compatibility & Selectable Charging Modes】This onboard marine battery charger supports multiple battery chemistries, including LiFePO4 battery charger (14.6V), NCM (16.8V), Lead-Acid (14.7V), and AGM batteries. It features selectable charging modes for each bank: 12V, 12V AGM, 12V Lithium, and 12V Repair Mode, enabling precise independent charging and maintenance for all types of lead-acid and lithium-ion batteries. It works seamlessly with LiFePO4 battery 100ah and LiFePO4 batteries, acting as an efficient lithium charger for various setups. One charger replaces multiple devices, saving space and cost, especially ideal for users with mixed battery systems.
• 【Smart Safety Protection & Precision Thermal Compensation】Built-in comprehensive safety protections: over-current, over-temperature, reverse polarity, over-voltage, under-voltage, and short-circuit protection, making it a robust lithium-phosphate-maintainer-multiple-protection device. It automatically recognizes battery status to provide safe charging without damaging the battery. An integrated thermal sensor adjusts charging parameters based on ambient temperature, preventing overcharging in high temperatures and undercharging in cold conditions, ensuring optimal battery performance and lifespan. This marine battery charger delivers reliable and secure charging in all environments.
• 【Rugged, Weather-Resistant & Flexible Mounting】Featuring a fully-sealed design with IP68 waterproof and dustproof rating (higher protection than IP65), it survives brutal life cycle testing, including several hours underwater in harsh marine conditions. As a dedicated on board battery chargers for boats, it withstands vibration, humidity, and tough outdoor environments. A simplified mounting system allows for fast, secure installation in any orientation—even upside down—with an integrated anti-vibration backing to isolate shock and noise. This on board battery charger is built to endure the harsh marine environment.
• 【User-Friendly Design & Reliable After-Sales Guarantee】Clear LED indicators clearly show standby, charging, full charge, or error status, allowing you to monitor the charging process at a glance. Serving as both a high-performance boat battery charger and a gentle trickle charger for boat battery, it supports long-term battery maintenance effectively. Our dedicated after-sales team is always ready to provide timely assistance for any questions or issues you may encounter during use, further enhancing your worry-free experience. As a versatile onboard battery chargers, it meets all your marine and multi-battery charging needs.