![]() ![]() While that model will tell you when the battery is charging or fully charged, it won’t give you complete information about the battery’s health. One of our staff is using this charger to maintain a dual battery system in his Suburban with a total of 80Ah capacity.” ![]() “This cost-effective charger can be purchased at Lowe’s. “A 12 volt, 1.25 amp Battery Tender battery charger costs less and still delivers a quality charge,” says Shread. For more basic needs, there are other Battery Tender battery chargers to choose from. While very versatile, the more casual user may look for a cheaper option. It will not only charge lead-acid, AGM, and LiFePO4 batteries with selectable charging rates, it also allows one to monitor the battery from a smartphone. For a lead-acid battery, this is usually 25 percent of the capacity a 40Ah lead-acid battery should be charged at no more than 10 amps, but it’s smart to check with the manufacturer to determine the maximum charge current.Ī more-than-enough solution for the majority of batteries would be the Battery Tender 10 AMP, 5 AMP, and 2 AMP selectable current and selectable chemistry WiFi-connected battery charger. The final consideration is the battery manufacturer’s maximum recommended charge current. This can be the familiar lead-acid of most consumer automotive batteries, Absorbed Glass Mat (AGM), lithium-ion, or lithium iron phosphate (LiFePO4). The first is nominal battery voltage in most all engine-start applications, this is 12 volts. ![]() Whether you’re about to put your car in storage or have noticed some signs of a bad battery in your vehicle, it may be time to give your car the extra attention it needs.With the knowledge that battery maintenance is important whenever a car is sitting for any period of time, the next step is to determine exactly which tools you’ll need to make sure the battery is in top condition when you need it to be.Īccording to Battery Tender® Vice President of Engineering Peter Shread, to select the right Battery Tender battery charger and maintainer, you have to consider several factors. This way, car owners can be sure their battery will be fully charged and ready to start the car even after spending months in storage. After all, leaving a battery charger connected to a car for months will overcharge the battery, but leaving a battery maintainer connected for that long is fine because charging will simply stop once the battery is full. This makes them perfect for keeping car batteries charged up while the vehicle is in storage. The Best Time to Use a Battery MaintainerĬlearly, the main advantage of battery maintainers is that they won’t overcharge the vehicle’s battery. The result is that a battery maintainer won’t overcharge the battery like a charger might, which can help extend the life of the battery overall. It stops sending a charge once the battery is full. On the other hand, a battery maintainer can sense how much of a charge the battery needs, so it slowly sends a trickle charge to it over a period of several hours. This means it’s possible to overcharge the battery with a charger - which can result in damage to the battery. The main detail to remember is that a battery charger typically sends a constant charge to the battery, with no regard to whether it actually needs to continue being charged. Here’s how battery maintainers work.Ī lot of people aren’t sure what makes a battery maintainer - which is also called a battery maintainer - different from a charger. Fortunately, this issue is avoidable, as battery maintainers can keep any car battery charged at all times. Just starting the car on a regular basis can keep the battery charged, so it should come as no surprise that a car that the owner rarely drives - such as a vehicle in storage - may end up with a battery problem. Every type of vehicle needs power to start the engine and operate any electronics, and it derives that power from the battery. ![]()
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