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1. #DO AGM BATTERIES NEED A SPECIAL CHARGER FULL#
2. #DO AGM BATTERIES NEED A SPECIAL CHARGER PROFESSIONAL#

Some of the best car battery chargers have safeguards that signal users when the battery isn’t connected correctly.

#DO AGM BATTERIES NEED A SPECIAL CHARGER FULL#

Whenever it kicks in, the trickle charge helps to maintain a 100% full charge at a tiny rate while keeping the battery safe from overcharging. Some chargers start trickle charging at 85% of the full charge, while others wait until 95%. This mode prevents overcharging the battery. Once fully charged, the unit automatically goes into float mode. Trickle ChargeĪ trickle charger feeds power to the battery at a slow and steady rate. This mode applies when the car sits for long periods or moves into long-term storage. The maintenance mode exists to maintain a fully charged cell using minimal power. Safety FeaturesĮnsure that the battery charger has short-circuit, overload, over-current, overcharge, and overvoltage protection so you stay safe at all times.

#DO AGM BATTERIES NEED A SPECIAL CHARGER PROFESSIONAL#

If you’re a professional who routinely works on vehicles, it will make the most sense to invest in something up to 60 A for the standard charge mode and 275 A for the jumpstart mode. If you want something midrange, you’ll opt for a 20A charger with a 55A to 100A boost mode. AmperageĪn entry-level battery charger comes with either 10A or 20A capacities. Top car battery chargers handle both 6V and 12V vehicles with ease. Many modern chargers are compatible with all car batteries, regardless of their size.

So here’s what we recommend keeping an eye on. Fundamentally, you want access to all the features you need to get your car running quickly or keep the battery fully charged. When you select an automotive battery charger, there are several factors you’ll want to consider. Then, you’ll realize their worth and be glad you made the investment. You might not appreciate the benefit of having one of these at your house until your car battery is dead. Owning a decent battery charger is something you want before you need it. Buyer’s Guide: Choosing the Best Car Battery Charger (Photo/Battery Tender) Bottom line: The GearJunkie staff is dedicated to exhaustive analysis and helping our readers make informed choices. Our expert team carefully selects the products we cover and vigorously researches our top choices. We get that people want the best value on gear before spending their hard-earned money. If you don’t mind investing a bit more, there’s also a 25A version ($111) of this car battery charger.Ĭheck price at amazon check price at walmart Why You Should Trust Us If you are stuck with a dead battery, you’ll find the 40A jumpstart feature gets you back and running in no time. Moreover, there are diagnostics on the unit that evaluate the alternator. This mode reduces the buildup of any solids found in the battery to increase capacity. There’s even a repair mode on the BC15BD. It’s nice to set it and let the machine do its job. Some people might not be fond of the lack of user control, but the charger works great with no issues. The third stage is the float charge, which operates at low amperage to reach 100% and maintain it while preventing overcharging. Second is the modulated charge that steadily increases the battery to 98%.ģ. First is its high-amperage charge, which works fast to get your battery to 80%.Ģ. Instead, it reads the battery and selects the best option between 0 A and 15 A to charge it. We found that this machine doesn’t use different modes like some other models. To a great degree, the heavy-duty construction helps it stand up well to wear and tear. One wouldn’t expect this household tool giant to do well in the automotive field, but the Black+Decker BC15BD ($88) 15A bench battery charger is well-made and capable. This detail is an excellent option if you have a vehicle that sits for long periods in frigid temps. The intelligence built into the Ampeak will optimize battery power without overcharging or damaging it.Īnd as a bonus, this bench charger has a winter charging mode specifically designed to charge your battery in winter conditions. We like the six-step charging program that includes desulfation, soft start, bulk charging, absorption, battery test, and floating. A microprocessor controls the charger with multistage charging for added precision, safety, and battery life. The unit has a large, easy-to-read LCD screen that keeps track of charging status, charging current, voltage, battery type, and error information. Additional features include a 2A trickle charge, 8A quick charge, and 15A rapid-charge modes that you can manually choose between based on your needs. The design of the Ampeak Smart Charger ($90) has fully automatic, high-frequency charging for all types of 12V lead-acid batteries.