NOCOGenius GENPRO10X3, 3-Bank, 30A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries

Upgraded to lithium batteries for my 36v trolling bank so had to change out the charger for lithium compatible unit. Much smaller and lighter than 2007 Lund factory three bank charger. Leads were plenty long to connect batteries which are in two compartments. Both legs of charger leads are fused with micro blade fuses, not sure why both legs but sure can’t hurt anything protecting both positive and negative sides. Cables and terminals appear to be good quality. Simple set up to configure to lithium charge profile. Bluetooth BMS on batteries showed just shy of 10 amp charge coming into each battery, so seems to charge as designed. Switched to maintenance mode after each were fully charged. Three year warranty is nice on a boat electrical part.

Just what I needed, Thanks

I purchased this multi-battery charger for use on my live aboard sailboat. I have a lead acid dual purpose batter for starting her diesel auxiliary and a dual LiFePo4 house battery bank. This charger will replace the old charger which wasn't suitable for the LiFePo4 batteries.1) it is one solidly built charger! I feel confident it will be up to the task of keeping my electrical storage banks charged.2) can charge three batteries (lead acid, AGM, and lithium) at the same time.3) the instructions are easy to follow.This is certainly not a detractor but I do wish there were a way to connect the charger to my boat's AC power panel without voiding the warranty by cutting the three prong plug off of the power cord. I could, alternatively, wire a wall type plug from the power panel to plug the charger in but I would much prefer to hard wire it to one of the AC circuit breakers. I could also plug it into a DC to AC inverter. I'll have to ponder this a bit.But all in all I am, so far, happy and satisfied with this purchase and that it will meet my needs on the boat. Once I have it installed I will update my review with performance results.Update: I've had the charger connected and working on my boat in the local marina. It does it's job wonderfully. Keeps my house and starter batteries topped off and ready for use. I have no regrets with purchasing this battery charger and would recommend it to anyone looking for a quality product to maintain their boat and/or RV batteries.

The NOCO Genius GENPRO10X3 is a lifesaver for keeping my expensive batteries in top shape through the off-season. With 3 banks and 10A per bank, it charges efficiently and maintains each battery perfectly. I no longer worry about my boat or marine equipment sitting idle all winter—this charger ensures everything is ready to go when the season returns. The smart technology takes all the guesswork out, and the rugged build gives me confidence it can handle the job. If you want to extend the life of your batteries and avoid costly replacements, this is the charger to get!

I just changed from Lead Acid to lithium batterys, the greatesr thing is I did not have to get a new charger.I think the only improvement would be if the charger had two levels for rate of charge, I like tp slow charge mine if I dont plan on going out soon but like to quick charge them if I am going right back out.

Works very well with my lithium batteries, charges other types of batteries as well!

Love this charger. 3 banks. 2 programmed for lithium trolling motor batteries and one programmed for AGM cranking battery. Sweet. Used for a couple of years now, no issues.

This charger is bult like a tank and works as advertised.The packaging and the manual both warn you NOT to modify the device or its cables in any way, the consequence being your warranty is voided. It sounds like corporate BS, but they have good reason to tell you not to modify the cables between the batteries and charger.But that did not stop us.First, the unit's incoming 117VAC power cable terminated in a conventional 3-prong plug designed for a wall outlet. We don't have one of those on our boat, the old charger was connected to shore power through a Marinco shore power connector in series with a 117VAC dual-leg breaker, ending up with black, white, and green wires with spade lugs that were affixed to screw terminals on the charger.So modification #1 was to cut the plug off and add crimp connectors to the 3 wires in the new charger's 117VAC power cord. How could this void the warranty? With that done, we proceeded to our next problem.All of the battery cables on the new charger were the same length. Each of them terminates in two fuses (one for 12V+ and one for 12V-), and crimped-on hoop connectors for the battery terminals. Very professional. However, our old charger was mounted on the starboard side of the boat and none of the cables could reach the port battery. So we needed an extention. We had two choices: extend one of the cables or change the location of the charger. We chose the former.There are two ways to extend these cables: modify them, or install an auxiliary stud terminal strip somewhere between the charger and the port battery. Having already voided the warranty by modifying the power cable, we chose to modify one of the battery cables.Each of the battery cables come out of the charger in a thick jacket. At the halfway point they transition to individual Red and Black wires that have fuses and loop connectors. What is NOT obvious is that the red and black wires are not the only thing inside the jacketed section. Also included in there are the tiny wires that connect to either a thermocouple or RTD that measures the temperature of each battery cable.You can guess what happened next: we decided to insert our lengthening section within the jacketed section of the charger's battery cable. The result of this poor decision was a non-functioning charger channel to the port battery.The fix involved and hour of electrical microsurgery to undo that bad decision, which required reconnecting the temperature sensor.My advice to NOCO is to give up on the "do not modify" policy and instead put a clear warning tag or label on the jacketed portion of each battery cables saying, "DO NOT CUT", directing the user to the manual to explain the reason (which was obviously not included in our manual).Live and learn. After the fix, we are pleased with the product, it's doing a great job.