That means you can use it to charge the battery on a boat as well as on a car or smaller vehicle. The result is a maintenance process that specifically fits your battery each and every time you use it.Īnother bonus of the Schumacher SC1355 is that it works as a deep-cycle battery charger as well as lead-acid battery maintainer. Like all car battery maintainers, it also shifts automatically into float charger mode when the job is done. One of the things that makes this Schumacher battery maintainer notable, though, is that the amperage adjusts automatically in order to maintain your battery efficiently, up to a maximum of 1.5 amps. The Schumacher SC1355 is a reliable model from a trusted brand in automotive battery charging and maintenance. The higher the amperage, the more powerful (and, generally, the more expensive) your charger. The speed with which your vehicle battery is charged (even during long-term plugged-in maintenance) comes down to the power of your battery charger. No doubt some of that success is due to satisfied customers' positive word of mouth, as the Junior has 4.7 stars out of 5 on the site, based on over 22,000 ratings.īest battery maintainer based on amp range Regardless of the difference in amperage, though, keeping the charger plugged in will offset the standard battery discharge.Īll of this convenience and value makes the Battery Tender Junior the best-selling battery charger on Amazon. While the 0.75-amp output of the Junior is lower than the 1.25-amp output of the Plus (though more expensive models of the Junior have higher amperage), it's less of an issue if you're just using it to maintain a battery. It costs less than the Battery Tender Plus, but you get the same car-battery charging (small vehicles) and maintaining (larger vehicles) capabilities. If you're looking for a reliable car battery maintainer but you want to save a few dollars, there's no better choice for you than the Battery Tender Junior, another product from Deltran's popular line. While the charging feature is mostly recommended for vehicles with smaller engines (such as motorcycles, ATVs, and jet skis), it can maintain cars, SUVs and other larger vehicles. The Battery Tender Plus doesn't work with deep-cycle batteries, but it can charge and maintain lead-acid, flooded and sealed maintenance-free batteries, which makes it a versatile choice. When it does, the Battery Tender Plus boosts it back up to full, and then goes idle until further discharge occurs. This means it doesn't deliver any more electricity until the battery drops from full due to standard discharge. When the Battery Tender Plus is maintaining a battery, it delivers a continuous 1.25 amps of power until the battery is full, and then it goes into 'float' mode. Case in point: The Battery Tender Plus, a charger and maintainer that also ranked as best overall on CNET Cars' list of top chargers. Read more: Best Car Battery Charger for 2022ĭeltran'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. After the recommendations, read on for more information about how car battery maintainers work, how they differ from one another and how to use them efficiently and safely. Here are our picks for the best battery maintainers in a variety of categories, based on expert opinion as well as customer satisfaction. Further, in each subgroup, some are better than others, with a choice of charging mode, battery voltage, the option for trickle charging and more. There are many different kinds of car battery maintainers - you can get a smart battery charger, a solar battery charger, a motorcycle battery charger and more. Typically, they're connected to batteries during long periods of inactivity so that a car will be ready to go when used again - but they can also be handy when regularly used on certain types of car batteries, regardless of driving frequency. Battery maintainers are slow-working chargers that let you replenish the regular discharge that affects car batteries - particularly when the vehicles aren't in use.

Schumacher battery charger