Best Boat Battery Chargers of 2025

"I bought this charger to replace my old one, and I'm really impressed. It was easy to install and has kept my batteries in tip-top shape over the winter. I love how it only maintains a charge when needed, thanks to the digital monitoring."

"This is my sixth NOCO product, and I've been very happy with all of them. The quality and performance have been superb. I did run into a minor issue with one of the banks failing, but their customer service was stellar. They responded quickly and helped me with my warranty claim without any hassle."

"I got this charger for my trolling motor batteries, and it works great. It's waterproof, which is a big plus for me. I just make sure to set it to the lithium setting, and I'm good to go. The cords were the perfect length for my setup, and I couldn't be happier with my purchase!"

"I have these chargers on my boat. They are incredibly easy to mount and use, and I couldn't be happier. Switching modes when upgrading to Lithium from Gel Mat batteries is a breeze. They maintain each battery according to type and age—peace of mind for me!"

"I decided to install this charger in my 2006 Corvette after converting to a lithium-ion battery from Braille. The unit is small and weatherproof, making it easy to fit in various locations. So far, it works perfectly and keeps my battery healthy, even when the car isn’t in use."

"I bought this charger for my son's motorcycle to ensure it stays charged during winter storage. I’m thrilled with its performance; it fully charges my Lithium battery in just 30 minutes. This is my second NoCo product, and it has exceeded my expectations once again!"

"I bought this for my Nitro Z19 bass boat to install lithium batteries for my live scope system. It was simple to install and worked perfectly right out of the box!"

"This charger is the best I've ever purchased. The 10amp per bank charge rate is significantly higher than most, and the battery restoration setting even fixed a battery that wouldn't charge. Tech progress at its finest!"

"I've been using this to charge my trolling motor batteries for several years, and I must say, it charges quickly and efficiently. It's a reliable product that works well for all battery types I use on my boat."

"I found that everything arrived as advertised and the packaging was great. It was extremely secure and worked perfectly right out of the box. I appreciate the ability to charge different types of batteries, although I'm currently only using it for my new lithium battery."

"After installing this charger for my new Impulse Lithium battery on my boat, I can confirm it works as it should. I love that with a simple button push, I can also charge regular and AGM batteries!"

"I was impressed with the fast delivery, receiving it on a Saturday! I bought it to charge my lithium 'house battery' in my van as a backup. It's well-built and easy to use. I plugged it in one afternoon, and by the next morning, my battery was fully charged!"

"I replaced my old Guest unit that failed because I mistakenly ran the engine while charging. After researching, I learned that having a separate ground for each battery would help to monitor and charge them individually. The installation was straightforward, and I appreciate the 5 smart charging stages. I plan to keep it connected this winter for maintenance."

"I have this battery charger mounted on my boat and keep it plugged in when not in use. It works perfectly and my boat cranks every time! Nothing worse than a delayed boat trip!"

"This was a replacement for my older model, and although it was slightly larger, I had no issues installing it. It charges and maintains my two batteries effectively in my center console bay boat."

"I purchased this multi-battery charger for my live aboard sailboat. It's impressively built, and I feel confident it will keep my batteries charged. I appreciate that it can charge three types of batteries at once and that the instructions are clear. Although I wish there was a better way to connect it to my boat's AC power without voiding the warranty, I’m really happy with this charger overall. It does its job wonderfully, keeping my batteries topped off. I would recommend it to anyone looking for a reliable solution."

"Having to replace my onboard charger on my bass boat was a hassle, but this one was a simple install and worked perfectly right away. I've used NOCO products before and have always felt secure using them. I love that I can just plug it in and forget about it; it can stay plugged in indefinitely without causing harm to my batteries. While it seems a bit pricey, the quality is definitely worth it."

"I had a Gen1 Noco for my AGM batteries and upgraded to this one for lithium-ion batteries. I wish I had known that it charges at 10 amps per hour rather than the 30 amps I initially thought. It took about 20 hours to charge my new batteries, which I understand now. The unit does run hot, though, so I’ve made adjustments to ensure proper ventilation. I do like the sturdy connections and thick wires, making it user-friendly. I’ll update once I finalize my installation!"

"I got tired of always pulling out the charger. With this Minn Kota, I can just plug it in while standing outside my boat. It charges my large deep cell batteries in about 7 hours, which is much faster than my previous charger."

"I bolted this unit to my boat and hooked it up to the batteries. It was very simple to install and seems to work great!"

"I've had this charger on my boat for a year now, and I have it plugged in almost every day. It has performed very well with no issues at all. I really like that I can charge my batteries and leave the charger plugged in without worrying about overcharging."

"This charger has been a game changer for me. It offers a simple and reliable way to keep my batteries in top condition. I love that it's lightweight and easy to store, making it convenient for home or garage use. The automatic voltage detection is a great feature, ensuring safe charging for my 12V batteries, and the clear LED indicators keep me informed about the charge status. With built-in safety features like reverse polarity detection, I feel at ease using it. Overall, it's a must-have tool!"

"I replaced a permanently installed unit on my boat with this charger, and I'm impressed. It's actually better made than the brand name unit I had before. While the wire quality could be a bit better, it hasn't affected anything so far. I didn’t use the alligator clips, but the unit feels heavy-duty and functions nicely. It charges my boat battery super fast and is a great size for mounting. Definitely worth the price—10 out of 10 for recommending!"

"I found this charger to be very user-friendly. It worked right out of the box and was set up within minutes. I tested it on two different batteries; one was dead, but the other charged as expected. However, I noticed that it only seemed to output around 0.85 milliamps, which is much lower than the advertised 5 amps. While I’m giving it 4 stars, I’d like more clarity on the actual output. The build quality feels solid, and the IP rating seems appropriate for its durability."

"I've received my charger and the packaging was great. It came with mounting screws and shipped quickly. The programmable feature works perfectly for the batteries I use."

"I utilize this charger for two camper batteries, and it's worked like a charm! It really saved me from a lot of headache."

"So far, this charger has been fantastic for my LiTime trolling motor batteries. I'm completely satisfied with its performance!"

"I recently purchased this 2-Bank Marine Battery Charger and it's fantastic! It handles all types of 12V batteries, including marine and deep-cycle. The IP68 waterproof rating keeps it safe on my boat. The Force Mode is a lifesaver for reviving dead batteries, and the auto repair mode quickly identifies issues. The 5-grid power display is clear and easy to read. Overall, it's a reliable and versatile charger. Highly recommended!"

"I've used several battery chargers, but this one is among the best. It revived my dead golf cart batteries and helped them run smoothly again! It's well-built for marine use and feels solid. I appreciate the safety features like reverse polarity detection. With two charging ports, I can repair two batteries simultaneously. I plug it in overnight, and it works perfectly."

"I really like this product! It arrived in a nice package and saves me time by allowing me to charge two batteries at once. It's easy to use, of good quality, and charges quickly. The portable design is a huge plus, letting me charge anywhere. It's a great value for its efficiency and quality!"