---
product_id: 640161987
title: "Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories"
brand: "zrfmib"
price: "€ 293.15"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/640161987-smart-3-bank-marine-battery-charger-10x3-30a-10a-bank
store_origin: SK
region: Slovakia
---

# 9-stage smart charging IP68 waterproof rating 30A total, 10A per bank Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories

**Brand:** zrfmib
**Price:** € 293.15
**Availability:** ✅ In Stock

## Summary

> ⚓ Power your voyage with precision and protection!

## Quick Answers

- **What is this?** Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories by zrfmib
- **How much does it cost?** € 293.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/640161987-smart-3-bank-marine-battery-charger-10x3-30a-10a-bank)

## Best For

- zrfmib enthusiasts

## Why This Product

- Trusted zrfmib brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Safety Shield:** Advanced diagnostics detect over-voltage, reverse polarity, and temperature issues to protect your batteries.
- • **Revive & Repair Mode:** Auto repair function breathes new life into dead or weak batteries, extending their lifespan effortlessly.
- • **Weatherproof Warrior:** IP68-rated waterproof design built to survive harsh marine environments and underwater conditions.
- • **Triple Power Precision:** Charge 3 batteries simultaneously with independent mode selection for AGM, Lithium, or Calcium types.
- • **Real-Time Battery Insight:** 5-grid LED display keeps you informed on charge progress from 20% to 100%, so you never miss a beat.

## Overview

This Smart 3 Bank Marine Battery Charger delivers 30A total output (10A per bank) with 9-stage smart charging and temperature compensation. It supports AGM, Lithium, and Calcium batteries simultaneously, features IP68 waterproofing for marine durability, and includes advanced diagnostics plus an auto repair mode to extend battery life. Ideal for professional boaters who demand reliable, safe, and efficient battery maintenance on the water.

## Description

Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories

## Features

- 【3 Bank Marine Battery Charger】12V 30A (10A/Bank) waterproof Onboard Boat Charger, which can automatically switch from full charging mode to float charging mode. Works with 12 volt batteries including marine, boat, starter, and deep-cycle batteries.ensuring a fast, safe and precise charge
- 【3 Charging Modes】: 12V SLA/AGM, 12V LITHIUM, 12V CALCIUM. 3 batteries can charge at the same time. Each battery can independently select the suitable mode via press "MODE".
- 【Save Your Dead Batteries】: Onboard marine battery charger charge dead batteries. When battery is lower than 1V, you can manually begin charging: Only press and hold the “MODE“ button for 5s.
- 【Accurate Charging】The charger has 9-stage charging and automatic temperature compensation，which can automatically detect the ambient temperature and adjust the charging frequency to prevent insufficient charging in overheated or cold weather and protect your battery.ensuring a fast, safe and precise charge
- 【Advanced Diagnostics】 Built-in smart diagnostics that detect and alert you to issues such as:①Over-voltage, ②Faulty battery, ③Over-temperature, ④Reverse polarity. This helps you quickly identify problems and ensure safe use.
- 【Auto Repair Mode】: You don't need to operate.“12V Repair”light is on, automatically start repair. Improving performance and extending battery life. Keep your batteries in optimal condition.
- 【Designed for water】: A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater.
- 【5-Grid Power Display】: 20%, 40%, 60%, 80%, 100%, allowing you to manage time and monitor the battery status easily. What’s in the box : 1* On board battery chargers for boats; 1* 72'' Input cable; 3* 79'' Output cable; 3* Battery clips; 4* Screws; 1* Bag, 1* Manual. 3-YEAR WARRANTY FOR CHARGER.

## Product Details

- **Brand:** Zrfmib
- **Color:** Black
- **Product Dimensions:** 10.24"D x 9"W x 2.2"H
- **Output Voltage:** 12 Volts (DC)
- **Specification Met:** CE, UL

## Images

![Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories - Image 1](https://m.media-amazon.com/images/I/71lUrY4-JdL.jpg)
![Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories - Image 2](https://m.media-amazon.com/images/I/71hlZ8yGBAL.jpg)
![Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories - Image 3](https://m.media-amazon.com/images/I/71olJaMy7OL.jpg)
![Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories - Image 4](https://m.media-amazon.com/images/I/71FrvVGgyGL.jpg)
![Smart 3 Bank Marine Battery Charger 10X3, 30A (10A/Bank) 12V,Waterproof,lifepo4 Lithium Boat Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories - Image 5](https://m.media-amazon.com/images/I/71QH9FP3CJL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing battery charger
*by C***O on July 18, 2025*

This battery charger is absolutely amazing I have a $400 Snap-on battery charger/repair/ stable voltage charger that I attempted to repair two different batteries with one of them was a lie on that I allowed to go to dead the other was a motorcycle battery of a buddies that he allowed to go completely dead the Snap-on charger would not even attempt to repair them this charger repaired both batteries charge them up to full and they have now been functioning for multiple months I would highly suggest to this battery charger especially for the price

### ⭐⭐⭐⭐⭐ Massive
*by M***L on June 18, 2025*

The 3 bank is massive, I’ll update when I get it installed. It looks very well built. I wish it came with ring terminal connections and not clamps, but ring terminals aren’t expensive. What I did like about this one was the ability to have the quick connect features like battery tenders.

### ⭐⭐⭐⭐⭐ Just works.  Does what it says (LiFePo batteries)
*by B***S on July 6, 2025*

I have only used this with LiFePo batteries (2x12V in series). The grounds are isolated so you can leave the batteries in series while charging them. Does what it says. I have had no issues charging the batteries.Just a little warning - Make sure you check the dimensions for your application. It is bigger than it looks in the pictures!But, it works well.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sk/products/640161987-smart-3-bank-marine-battery-charger-10x3-30a-10a-bank](https://www.desertcart.sk/products/640161987-smart-3-bank-marine-battery-charger-10x3-30a-10a-bank)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-06*