Smart 2 Bank Marine Battery Charger, 10A (5A/Bank), 12V,Waterproof,lifepo4 Lithium Battery Charger Maintainer and Desulfator for AGM, Lithium,Deep-Cycle Batteries Boat Accessories
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Availability:
In Stock.
Arrives
Tuesday, May 27
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Features
- 2 Bank Marine Battery Chargeroutput 12V 10A (5A/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.
- 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 ChargingThe 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 Repairlight 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. Whats in the box : 1* On board battery chargers for boats; 1* 72'' Input cable; 2* 79'' Output cable; 2* Battery clips; 2*Bettery Connectors; 4* Screws; 1* Manual. 3-YEAR WARRANTY FOR CHARGER.
Brand: Zrfmib
Product Dimensions: 6.5"D x 6.5"W x 2"H
Output Voltage: 12 Volts (DC)
Input Voltage: 120 Volts
Current Rating: 1E+1 Amps
Product Dimensions: 6.5 x 6.5 x 2 inches
Item Weight: 4.71 pounds
Date First Available: January 9, 2025
Manufacturer: Zrfmib
Country of Origin: China
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, May 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
My husband loves these so much nice than his old ones and half the price
Reviewed in the United States on April 29, 2025 by Marlene Day
Works perfectly charged my boats batteries very quickly
Reviewed in the United States on March 26, 2025 by Lane Harris
The media could not be loaded. I got this two-bank battery charger to put in my pontoon boat because I'm adding an additional battery for auxiliary use and I need to ensure they both stay charged up, even when the boat isn't used for a while. I live in an area where it gets too cold to be out on the water in winter so my pontoon and even my bass boat may sit for 6-7 months without being used, so it's a must to have some sort of charging system to keep the batteries from discharging over time and also to help prolong their usable life spans. This two-bank charger is exactly what I need in order to ensure the batteries stay charged and ready to go when the season starts up in springtime. The charger has a bit of heft to it, indicative of its quality and being well-designed; it's not a cheap-feeling, flimsy plastic product. It comes with everything needed to hook it up as well as an instruction book, showing how to hook all of the wiring up properly. The charger had two separate leads coming from each bank and those leads have plug-in connections which can be used to plug in the provided cable clamps or the leads with the ring terminals. This is a really nice feature as the clamps are removable so you can charge any battery whenever needed without having to disconnect any terminals or cables. This also allows the charger to be portable if you choose not to permanently mount it, if that's your choice. The leads with the ring terminals are designed to be connected to permanently mounted batteries so you don't have to bother with hooking and unhooking any wiring. The really neat part about this unit having this type of setup is, if you have the charger permanently mounted but you need to charge another battery (or two) you can just unhook the ring terminal wiring and connect the two leads with the clamps and charge those other batteries! Very versatile! The charger has indicator lights which let you know it's charging, how much charge the battery (or batteries) has and if the battery is bad, all lights flash to let you know the battery is not being charged. This thing is really intelligent and will likely pay for itself in time by keeping your batteries in good shape and prolonging their service life. A couple of points to note, make sure when you hook all of the wiring up, you do so properly so there aren't any surprises. Hook each set of leads coming from each bank to the proper battery and make certain the polarity is right. Don't hook the positive lead from bank 1 to your main battery and the negative bank 1 lead to the auxiliary battery; this may not work. And before you say you wouldn't ever do that, it's not hard to do when you have a jumble of wires you're dealing with, and things get mixed up. IMPORTANT! If you're familiar with a 12V, two battery system, you can skip this next paragraph but if you're not familiar with hooking up two batteries for a 12V system, the following will help you and explain it, and it's visually explained in the video I posted: If you have a 12V system and you have two batteries, you hook the POSITIVE terminal to the POSITIVE terminal and NEGATIVE terminal to NEGATIVE terminal. This keeps your system at 12V but gives you increased amperage from each battery. DO NOT hook positive to negative and negative to positive because you will INCREASE your VOLTAGE to 24V and that's going to cause problems in your electrical system. This aspect is of the utmost importance because failure to ensure proper connections will cause problems! I posted a video review of the charger and showing my installation, as well as the wiring process. In summary, this is a great product to have, even if you only have one battery, as it will give you peace of mind knowing your battery is being kept fully charged and you don't have to worry over or bother with constantly hooking up and unhooking a separate charger. It especially excels in bass boats which normally have two batteries for a trolling motor as those batteries never get charged except via a separate charger or from an on board, dedicated charger such as this one. And again, the money you save because your batteries will last longer will more than pay for this charger, so I definitely recommend it!
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Reviewed in the United States on March 13, 2025 by Bill Harris
This was super easy to install and use. I installed it on the door of my battery compartment. It feels very robust and gives me a lot of confidence in the overall build quality and reliability of this unit. I have two agm marine batteries and this has no issues charging them and keeping them maintained. I would say this is definitely worth the cost and would recommend it.
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Reviewed in the United States on April 16, 2025 by Scott Scott
This is a really nice, extremely complete kit. It's not just the bare bones charger, it includes hardware, and my favorite, alligator clips. For the price of a regular high end "smart" battery charger, you could have this. It's marine grade, made of durable materials, the finishes are nice, the readouts are easy to understand, it's superior in almost every way to a standard charger. . I really am having a hard time deciding whether to put this in a boat, or keep it in my shop as my main battery charger. It includes charge modes for every common battery. . With the included hardware, it should be easy to mount in most boats on the transom. It is compact as well, measuring half the size, and about a tenth the weight of older multibank chargers of the 80s and 90s. People don't consider weight in boats enough. Anywhere you can save weight, you improve top speed and fuel economy. This could be one of those items, to add to your boats diet.
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Reviewed in the United States on March 19, 2025 by Techy
Ordered this: Smart 2 Bank Marine Battery Charger, 10A (5A/Bank), 12V,Waterproof,lifepo4 Lithium Battery Charger Maintainer and Desulfator for AGM - to use at my Dad's winter battery charging shelf. All the ranch devices have their batteries removed and stored there over the winter. I like the branded box and all the accessories included with the product as well as manual. Full 5 stars there and on the simple function. The only thing you need to mess with is changing the mode to correspond to the battery type you are charging. Heavy product that can do two batteries at once and mentions lots of protection methods. If you are interested in a simple two bank charger that can do multiple batteries this is worth considering. The downside for me, which is significant, is that there is no LCD readout of what the battery is doing. I have a $30 smart charger that reads out: voltage, charging stage, battery type being charged, amperage delivered any any battery issues. This model just has 4 potential status lights that come on but are hard to translate without the manual. You don't really know what the charger is doing or the voltage of the battery with this product. It's a simple hook it up and pray kind of charger. I took one star off because at this price point that kind of readout should be standard. I want to know what charging voltage, amperage and cycle is being used when, if you don't care then ignore this criticism.
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Reviewed in the United States on March 16, 2025 by JB
I got this charger to charge my lithium batteries for my kayak. I have more than one lithium battery, and I could only charge one at a time. The charger I had would take a long time to charge. Enter the smart 2 bank charger, now I can charge two batteries at a time and the charge time is less than my old charger. It is very compact and is easy to mount. I have it mounted on my garage wall but its compact design would make it easy to mount inside a boat. It charges all type of batteries beside lithium as well. I am impressed with the performance of this charger and compact design .
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Reviewed in the United States on April 9, 2025 by Kathy H. Kathy H.