The perfect high-quality battery maintainer for professional use and repair workshops. It works in both full sun and cloudy conditions. Articles may contain affiliate links which enable us to share in the revenue of any purchases made. Battery Tender creates some of the best battery chargers and maintainers out there, and this 12V product is one of their signature options. Ctek MXS 5.0 Fully Automatic 4.3 Amp Battery Charger and Maintainer. Introducing the next-generation of battery charging with the all-new maximum power density technology. Amazon.com: Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Kit Portable Backup for Car Automotive RV Marine Boat Motorcycle Truck Trailer Tractor Powersports Snowmobile Farm Equipment : Patio, Lawn & Garden Patio, Lawn & Garden Generators & Portable Power Solar & Wind Power Solar Battery Chargers & Charging Kits ALLPOWERS Solar Battery Maintainer 7. If a battery dips down to 99% charge, for instance, the maintainer will boost it back up to 100% without overcharging it. "We always try [to] charge our lead-acid [car] batteries nice and slow," says Charlie Williams of review site Workshopedia.com. Enjoy countless hours of safe charging without any risk of overcharging your batteries, plus additional safety like spark-proof connections, and reverse polarity protection. Every day that a vehicle goes without being used, the battery experiences a slight power loss. Its capable of charging and maintaining motorcycles, ATVs, jet skis, riding mowers, and dirt bikes, or maintaining a charge on your car, truck, SUV, or power boat. Thats why we took the time to track down, highlight, and review ten of the best battery maintainers out there. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. If youre looking for maximum charging capacity, including being able to recharge and desulfate dead batteries or charge multiple batteries at once, plan to spend closer to $100 to $200. It will then automatically switch to maintenance or float mode to maintain your battery. As long as youre able to handle it with care, though, it is built to work for long periods. And, as an added bonus, its offered at a refreshingly affordable price point. Deep-cycle batteries operate by discharging more power at once, thereby making regular charging necessary, even during periods of use. A battery maintainer keeps the battery from dying and actually extends the batterys life compared to it just sitting there unused. The charger has reverse polarity protection in case you hook it up wrong. 1.2 Amp Portable Car Battery Charger/Maintainer Compatible with 6 and 12-Volt AGM, GEL and WET Auto/Marine Batteries The Black + Decker Battery Maintainer/Charger The Black + Decker Battery Maintainer/Charger is designed to keep your 6 Volt and 12 Volt batteries at optimal capacity year-round. DieHard is one of the top names in the battery industry, so its no surprise that they also make a top-notch battery maintainer. $2,099.99. If you buy through our links, we may get a commission. All-new next-generation battery charger - now smaller, lighter, and with improved features to increase battery life. All battery maintainers will have at least a single port; however, if you are looking to tend more than one battery, youll need a maintainer with more capacity. This charger and maintainer doesnt need electricity to work. Our reviews are driven by a combination of hands-on testing, expert input, wisdom of the crowd assessments from actual buyers, and our own expertise. Vehicle Electrical & Battery Power Maintenance. And actively monitor for long-term battery maintenance and extend battery life. Deltran's Battery Tender brand is one of the most recognizable names in the fields of battery charging and maintenance, and it's for good reason -- the Battery Tender products are almost always recognized as some of the best on the market. Thats what makes the Everstart 12-Volt Battery Charger and Maintainer such a popular option. Most ring in at around two amps. Cost-effective and user-friendly, this battery maintainer works on any type of car or water vessel. So, if you spend a lot of time working on AGM batteries or only use AGM batteries in your vehicle, its best to get an AGM-specific battery charger and maintainer. ProTournament Elite 360 3-Bank On-Board Marine Battery Charger. The vast majority of battery maintainers on the market use the four-step charging approach. Just be sure not to leave the car running for too long and make sure that the cables are clear of all moving parts under the hood before doing so. Its worth a note that, since this unit is so powerful, it does come with a proportionately higher price tag. Also, the instructions aren't very detailed, and the electrical cord isn't very long. Considering its capacity, this unit is super small, light, and easy to use. MOTOPOWER MP00205A Best Budget Maintainer, 3. View Full Site. The GENIUS2D is a 2-amp direct-mount battery charger and battery maintainer engineered to be securely mounted nearby the battery. A: Ideally, yes. Its a lightweight and easy-to-use battery charger and maintainer thats a great addition to any garage, but its simply not the best of the best out there. Also, the charges that they deliver are typically of lower amperages than those of battery chargers. When you add in the 3-year warranty that it comes with and the fact that its lightweight and portable, and its not hard to see why it earned a spot on this list despite the lower price tag. In a universal sense, it's essential that you keep your car off during the car battery charging process. Other features include battery diagnosis, automatic desulphation, and a float/pulse system that efficiently maintains the battery when it's connected for long periods of time. This streamlined, compact, and affordable battery maintainer will desulfate, charge, and maintain 6- and 12-volt batteries. Battery Tender Plus 021-0128 The Battery Tender brand is at the forefront of battery maintaining technology and the 021-0128 Plus is their most popular model. Can You Overcharge a Battery on a Maintainer? Still, while it made our list with all these awesome features, theres a reason it couldnt work its way into the top half. 1. Additional safeties include voltage and amperage limits, as well as protection against reverse polarity. Like automatic battery chargers, battery maintainers are "smart," meaning that they can read the power level of your battery and apply a charge accordingly. It uses multi-stage charging to protect and extend the life of your battery. At 8/10 of an amp, it'll provide a steady current for overnight battery charging OR maintenance. Be sure to get the one that most suits your specific needs. Check On Amazon. Ampeak's deep cycle battery charger has three separate charging modes that can deliver up to 8 amps of power and an automatic float mode that allows for battery maintenance. There is also no indication of whether the unit is working or not. Unlike a battery charger, most well-made battery maintainers will stop pushing a charge once the battery is full. That's simply how lead-acid batteries, which power most vehicles, work. Now, higher might sound better, but with a maintainer, its better to stick in the mid-range. Its a standardized system where a charger that pushes 1-amp actually restores one amp-hour per hour. Portable Car Battery Charger,Battery Maintainer, Trickle Charger, and Battery Desulfator for Car,Boat,Motorcycle, Schumacher SP1297 Fully Automatic Battery Charger, Maintainer, and Auto Desulfator - 3 Amp, 12V - For Cars, Motorcycles, Lawn Tractors, Power Sports, Marine Batteries, Battery Tender 4 AMP Car Battery Charger and Maintainer: Switchable 6V / 12V, Automotive Battery Charger and Maintainer for Cars, Trucks, and SUVs, Lead Acid & Lithium Battery Charger - 022-0209-BT-WH, NOCO GENIUS2D, 2A Direct-Mount Onboard Car Battery Charger, 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Marine, ATV, Truck and Deep Cycle Batteries, Schumacher SC1319 Fully Automatic Battery Maintainer- 1.5 Amp, 6/12- for Car, Power Sport or Marine Batteries, AXTRA 6V and 12V Car Battery Charger, 3.6-Amp Fully-Automatic Smart Battery Maintainer for Car, SUV, Truck, Motorcycle, Boat, RV, Lawn Tractors, ATV - (Lead Acid, AGM, Sealed, GEL, SLA, Flooded), YONHAN Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation, Energizer 2-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, 7 Step Smart Charging Technology, GOOLOO 4-Amp Car Battery Charger Automotive, 6V/2A and 12V/4A Battery Charger Maintainer, Trickle Charger, Supersafe Smart 12 Volt Float Charger, Battery Desulfator for Lead-Acid Battery(S4), Schumacher SC1361 Fully Automatic Battery Charger, Maintainer, and Starter 50 Amp/10 Amp, 12V - Car, SUV, and Small Trucks, Battery Tender 5 AMP, 12V Battery Charger, Battery Maintainer: Fully-Automatic Battery Charger for Cars, Trucks, SUVs and More - Smart Automotive Battery Chargers - 022-0186G-DL-WH, Schumacher SC1355 Fully Automatic Battery Maintainer - 1.5 Amp, 6/12V - For Car, Power Sport, or Marine Batteries, BLACK+DECKER BC15BD Fully Automatic 15 Amp 12V Bench Battery Charger/Maintainer with 40A Engine Start, Alternator Check, Cable Clamps, TowerTop 2/10/25 Amp 12V Smart Car Battery Charger, Fully Automatic Battery Maintainer with Engine Start, Auto Desufator, Battery Recondition,Winter Mode, DEWALT DXAEWPC4 Fully Automatic 4 Amp 12V Waterproof Battery Charger/Maintainer with Cable Clamps, Schumacher SC1280 Fully Automatic Battery Charger and Maintainer 15 Amp/3 Amp, 6V/12V - for Marine and Automotive Batteries, [2-Pack]1.75-Amp Car Battery Charger, 6V and 12V Smart Fully Automatic Battery Charger Maintainer, Trickle Charger, Battery Desulfator for Car, Lawn Mower, Motorcycle, Boat, Marine Lead Acid Batteries, 20-Amp Car Battery Charger, 12V and 24V Smart Fully Automatic Battery Charger Maintainer Trickle Charger w/Temperature Compensation for Car Truck Lawn Mower Boat Lead Acid Lithium LiFePO4 Batteries, NOCO GENIUS2X2, 2-Bank, 4A (2A/Bank) Smart Car Battery Charger, 6V/12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV and Lithium Batteries, DeWalt DXAEOBD Professional 1 Amp Battery Maintainer for Use with 20V DeWalt Lithium Battery Pack, HULKMAN Sigma 1 Car Battery Charger, 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface, Battery Tender Junior 12V Battery Charger and Maintainer: 800mA 12 Volt Switchable Battery Charger for Lead Acid and Lithium Batteries, Powersports - 022-0199-DL-WH, MOTOPOWER MP00205B 12V 1000mA Automatic Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Timer Protection, LST 12V Battery Trickle Charger Maintainer Portable Smart Float Charger for Car Motorcycle Lawn Mower SLA AGM GEL CELL WET Lead Acid Batteries, Ampeak 2/10/25 Amp Smart Car Battery Charger, 12V Fully Automatic Battery Maintainer with Engine Start, Auto Desulfator, Battery Recondition, 6-Amp Car Battery Charger, 12V Smart Automatic Battery Charger Maintainer Trickle Charger with Temperature Compensation for Car Truck Motorcycle Lawn Mower Boat Marine Lead Acid Batteries, 12-Amp Car Battery Charger, 12V and 24V Fully Automatic Smart Trickle Charger, Automotive Car Battery Maintainer Desulfator for Car Boat Motorcycle Lawn Mower Lead-Acid(AGM/Gel/SLA), Lithium Batteries, Porsche Charge-o-mat Pro Battery Maintainer and Charger, Schumacher SC1410 6V/12V Two-Bank 2A Battery Charger/Maintainer , Black, TowerTop 2/15/25 Amp Car Battery Charger, 6V/12V Fully Automatic Smart Battery Maintainer with Engine Start, Auto Desulfator, Battery Recondition, Winter Mode, for All Lead-Acid and LiFePO4 Batteries. That means you can maintain your battery wherever you are, so long as there's some sunlight for a solar panel to collect. It is priced affordably and is extremely compact. Circuits, harnesses and relays may be removed and replaced to repair electrical issues. Includes a 2-amp direct-mount battery charger and battery maintainer with a 24-inch Type-A A/C cable and 24-inch D/C cable with eyelets, plus a mounting bracket, self-tapping truss-head screws, and user guide, plus a 3-year hassle-free warranty. Youll need to tell it what type of battery youre connecting it to. Thankfully, car batteries are designed with safety features to prevent explosions, so the overcharged exploding battery is essentially an urban legend. Able to maintain four batteries at the same time, this precisely machined device automatically controls output voltage. There are multiple wattage options for you to choose from, so you can decide how fast and how much power your battery charger needs. But while its a lower-priced option, its still jam-packed with features that you can find in higher-end chargers. Trickle chargers are meant to be disconnected when they're done charging, while battery maintainers can be left plugged in, you won't be able to do it with just one small maintainer, you can keep a maintainer plugged in as long as you want, Do Not Sell or Share My Personal Information. NOCO GENIUS 2D 12v 2 Amp Direct-Mount Battery Charger and Maintainer. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. The charger/maintainer has a built-in blocking diode to help protect against battery discharge at night. If this is the case for your vehicle, you'll need a 12-volt battery maintainer. It's important to choose a battery maintainer that will provide the right amount of voltage for your car's battery. Trickle chargers simply push a small current through the battery at a steady rate. If you simply want the best of the best go with the DieHard 71219 Shelf Smart Battery Charger and Maintainer, and if youre on a tighter budget get the MOTOPOWER MP00205A. The device has a built-in automatic temperature sensor and comes with alligator clamps and eyelets.