Customer Ratings & Reviews

One of the best features of this charger is the cord that is over 8' long. It makes it convenient to charge a vehicle without putting the charger under the hood or leaving it exposed to the elements. I only gave it 4 stars since while the battery clips are removable there is no terminal lugged pigtail to permanently connect it to a battery included with the charger. When I attempted to use the charger with an existing pigtail that I have on one of my cars the connector is backwards from the common pigtails for this purpose. The hot (positive) lead on the pigtaiI would stick out without being shrouded by the connector. I did like the versatility of the charger and that it can also be switched to charge Lithium batteries as long as the battery has a charge controller and can be used to charge 6 Volt and AGM batteries. This will be great for charging up my outdoor power equipment where I clip the charger directly to the battery or giving my vehicle a quick charge by pulling up to my garage door and clipping the charger to the battery.

It is easy to use and works great. The included clamps connect easily to the battery terminals, and the clear LED indicator lights let me know exactly what’s happening at a glance. It’s great for keeping my car battery going, especially when they sit unused for a while. Overall, a simple and convenient battery maintainer that does the job well.

I have bought rexing dashcam and jump starters before and their quality amazes me. They are far better than other generic brands. This battery charger is priced reasonably and useful for charging auto and other similar batteries. You will not have to go to auto zone and leave the battery there overnight to charge. Very compact in size and easy to use.

It was very easy to connect and use, and I like that it automatically takes care of the charging. It’s compact, convenient, and does exactly what I needed. It also comes with everything needed to use it.

A trickle charger should be simple and work. This one is nice because it does multiple battery types and voltages. Worth the savings over more expensive models that don't give any extra features.

Ordered the Rexing N1 trickle charger on September 16th, 2026, and had Best Buy deliver it to my house. I reviewed all the modes and tried it on my 2026 F-150, which has an AGM battery. The instructions were understandable, and the unit attached without any problems. I like the fact that it has different modes (12V, 12V AGM, 12V Lithium, and 4V however, I doubt I will ever use the 4V or 12V Lithium because I don’t have those batteries). Newer vehicles have AGM batteries; this thing is a lifesaver! If I had any recommendations, it would be to have a power cord on the unit., Without it, you must plug it into an extension cord if you don’t have an electrical outlet close to the point of use.

I purchased this charger to have a backup for my existing Battery Tender. Both serve their purposes but the advantage of this is this is lighter and compact which is good advantage when you're storing it. This charger is easy to operate with the built-in LED and can support multiple types of batteries and the price is reasonable. Having an 8' long cord is great, so I don't need to use an extension cord. I definitely recommend this product.

This is another great Rexing product! It is compact but with long cables, which are very helpful. It is easy to use and works great!

The Rexing Master 1.5A is a handy charger to keep in the garage. I appreciate that it supports both 6V and 12V batteries and works with several battery types. The automatic maintenance mode is a useful feature for vehicles or equipment that sit between uses. Its compact size also makes it convenient to store. A solid option for routine battery maintenance.

The Rexing Master 1.5A Smart Battery Charger is a practical and convenient solution for anyone looking to keep their vehicle batteries properly charged and maintained. What I particularly like about this type of charger is its combination of automatic operation, compatibility with both 6V and 12V batteries, and support for lead-acid and lithium battery technologies. These features make it a versatile option for people who own multiple vehicles or equipment and want a simple way to take care of their batteries without constantly worrying about their charge level. One of the biggest advantages of this charger is its automatic charging and maintenance functionality. Having a charger that can manage the charging process on its own is extremely convenient, especially when maintaining vehicles that are not driven every day. Cars, motorcycles, ATVs, lawn equipment, and other vehicles can experience battery discharge when they sit unused for extended periods. A smart charger designed for maintenance can help reduce this problem and make it easier to keep batteries ready when they are needed. The 1.5A charging output is particularly suitable for battery maintenance and smaller batteries. Although it is not intended to be a high-speed charger for large, deeply discharged batteries, its relatively low charging current can be beneficial when the goal is to maintain a battery over time rather than recharge it as quickly as possible. For seasonal vehicles, backup equipment, and cars that spend long periods parked, this type of charger offers a sensible balance between convenience and everyday practicality. Another important feature is its compatibility with both 6V and 12V batteries. This flexibility is useful because not every vehicle or piece of equipment uses the same battery voltage. Being able to work with different systems means there is less need to purchase separate chargers for different applications. The support for lead-acid and lithium batteries is another welcome advantage, provided the correct charging mode is selected for the particular battery being used. I also appreciate the idea of having a smart charger that can automatically manage the charging process instead of requiring constant supervision. This makes battery maintenance much less complicated, particularly for people who are not experienced with battery charging equipment. A straightforward charging solution is always preferable when the main objective is simply to keep a battery in good condition and ready for use. For anyone who owns a vehicle that spends more time parked than driven, battery maintenance can be an important part of routine care. Leaving a battery discharged for extended periods can contribute to premature deterioration, so having a dedicated maintainer can be a worthwhile investment. A charger like the Rexing Master 1.5A offers a convenient way to address that concern without needing a complicated setup or a more powerful, expensive charging system. Its relatively modest charging capacity is also worth considering from a practical perspective. Not everyone needs a heavy-duty charger capable of delivering a high current. For routine maintenance, smaller batteries, and situations where charging speed is not the priority, a 1.5A unit can be a reasonable choice. It is better to select a charger suited to the intended application than to pay for power that may rarely be needed. Overall, the Rexing Master 1.5A Smart Battery Charger appears to offer a useful combination of versatility, automatic operation, and battery maintenance functionality. Its support for 6V and 12V systems, together with lead-acid and lithium battery compatibility, makes it an appealing option for a range of everyday applications. It is especially worth considering for people who want to maintain batteries during periods of inactivity rather than repeatedly dealing with a dead battery when they need their vehicle or equipment. In conclusion, this charger is designed for people who value convenience and straightforward battery maintenance. While its 1.5A output means it is not the best choice for anyone who needs rapid charging of large batteries, it can be well suited to routine upkeep and smaller battery applications. For the right use case, the Rexing Master 1.5A Smart Battery Charger offers a practical approach to keeping compatible batteries charged and ready when needed.

I own a number of different brands of battery chargers and maintainers and use them quite often. When I tried this Rexing unit for the first time, I connected it to an auto battery that had not been charged for quite awhile. I anticipated it would struggle with it but the next day, it was fully charged. The battery continues to be maintained very well since then. This automatically detects the battery status, adjusts for output due to the battery condition and goes into a maintenance mode and prevents overcharging. It also will work for 6Volt and 12Volt Batteries and has a selector for different types of batteries whether they are AGM, SLA, lead-acid, or lithium. It will also work for motorcycle and lawn tractor batteries too. I really recommend this nice unit!

I really like this little charger. It’s compact, lightweight, and doesn’t take up much space, but don’t let the size fool you. It’s a pretty capable charger for something this small. I also like that it’s easy to store away when you’re not using it. What I appreciate most is how simple it is to use. I’ve had other chargers in the past that seemed to make things more complicated than they needed to be. With this one, there’s really no guesswork involved. Just connect it to the battery, plug it in, and let it do its thing. You don’t need to be mechanically inclined or know much about batteries to figure it out. I think just about anyone could use this without any issues. Another nice feature is that it works with both 6V and 12V batteries and supports different battery types, so you’re not limited to just one application. I also like that it can maintain a battery rather than just charge it, which makes it useful for vehicles or equipment that might sit unused for extended periods. Overall, I think Rexing did a nice job with this charger. It’s nothing fancy, and that’s actually what I like about it. It’s small, straightforward, easy to use, and does what it’s supposed to do without making you think too much about it. Sometimes the simplest products are the best ones, and this is a good example. Definitely something worth having around the garage.

I picked up the Rexing Master 1.5A (Model: BBY-N1) to handle battery upkeep on my Cub Cadet riding lawnmower, and it has performed flawlessly. Outdoor power equipment batteries are notorious for draining or deteriorating when sitting idle between cuts or during the off-season, so having a dedicated smart trickle charger makes a huge difference. Hands-Off Smart Monitoring: The automatic float and maintain cycle switches seamlessly once the battery reaches full charge, eliminating any worry about overcharging or overheating. Effortless Setup: Connecting to the battery terminals is simple with the included clamps. The indicator lights clearly display the charge status, so you always know what the unit is doing at a glance. Remember to have the key in the OFF position when connecting the charger. Multi-Battery Versatility: While I primarily keep it hooked to the 12V battery on my Cub Cadet, the ability to switch between 6V and 12V chemistry (including AGM and Lithium support) gives it solid utility across other vehicles and seasonal tools. Cable Reach: The 10ft. cord length provides enough slack to plug into a garage wall receptacle and route directly into the mower's battery compartment without putting tension on the leads. Bottom Line: An affordable, dependable plug-and-forget charger that guarantees the lawnmower turns over on the first crank every time.

Bought this because my battery "died". I only do short trips around the city, don't drive every day, and my car has auto start/stop. That combination basically drains the battery faster than the alternator can recharge it. I hooked this up and left it alone. It took a while but the battery is as good as new. Planning on proactively using it once in a while. Maybe every weekend or once a month.

Good power device to charge 12v battery. Intuitive design with the button so it’s easy to click different options.

It was very easy connect and very easy to keep my battery in good condition

I bought this to have on hand. All too often, I've found myself on a cold morning with a sluggish battery, or worse yet, a car that won't start. Being able to charge it, or to keep a battery on a trickle, ready for use. It's well thought out, sits well in the outlet and has decent length cords (10'+) to reach your battery, no matter where it is. Very happy with it.

We've been really happy with Rexing products over the years, and this battery charger is no exception! We purchased it to help maintain the batteries in our lawn equipment during the winter months when everything is sitting unused. It's compact, easy to use, and exactly what we were looking for to help keep our batteries in good shape during the off-season. We've always had great experiences with Rexing, and it's nice to have another one of their products we can count on. Looking forward to putting it to good use this winter. Definitely a great addition to our garage!

I ordered this charger mainly for charging smaller batteries, especially 12V AGM batteries that I use in several applications and also the battery on my side-by-side. I was impressed by how compact the charger was. It was actually much smaller than I expected and the cord is LONG, which is great! The functionality is also quite nice in that it detects the type of battery and does it's thing. I also like that the wires include an in-line fuse as well as a quick release on the cable that would allow replacing the cable if for instance, the clamps get damaged. I used it to charge several 6V batteries that I had as well as multiple larger 12V batteries including topping off a full sized Diehard battery from a truck and it worked great in all cases. It is no speed demon, but you also do not want to charge batteries super fast either. I did not have any lithium batteries to try however. Were I did have an issue, was on a 12V 7.2Ah AGM battery that I had. It has rarely been used, but I know that it is a good battery, and it was sitting at about 6.5V. The charger would not sense it and even recovery mode would not work. What it would do is the charge light would light red for a second and then it and the AGM light would go out, the standby LED would flash and then the AGM light would come back on and the cycle would continue indefinitely. The manual did not cover anything like this in the troubleshooting. This was a little disappointing. Overall, I think that this is a very well designed charger and overall it worked quite well. I did have an issue that was not addressed in the manual and I would like to see some more troubleshooting information in the manual to help explain what I encountered.

I’m very happy with the Rexing Master 1.5A Smart Battery Charger. It’s easy to use, compact, and convenient for keeping batteries charged and maintained. I like that it supports both 6V and 12V batteries and offers automatic charging and maintenance, which makes it a practical choice for long-term battery care. Overall, it’s a handy product that offers good functionality and peace of mind. I would definitely recommend it to anyone looking for a reliable battery charger and maintainer.