If you share the specifications of the LED lights, they will send you an accurate answer. If you can’t interpret the manufacturer’s chart, send them a message.Īsk them to estimate the life of their batteries. They have charts that explain the discharge rates of their products. You can increase the accuracy of your prediction by talking to the manufacturer. Some LEDs use more power than others because they have animated sequences. Once you replace the batteries, you will know how long they last.įrom what I have seen, you can’t predict a battery’s life because it will fluctuate depending on factors like the electrical draw of the LEDs. Mark the time when the lights shut off completely. The LEDs will gradually fade or flicker erratically as the batteries drain. You have to make estimations by observing the lights. How long can you expect the batteries to last? This question matters because it will tell you how long the LED lights will continue to work.Ī battery’s life is immensely difficult to predict. You can use conventional LEDs indefinitely if the outlet or extension cord has access to power.īattery-powered LEDs will die once you drain the batteries. If the lights are nowhere near a socket, you have to buy an extension cord, possibly even a surge protector, depending on the number of lights and the outdoor conditions.īattery-powered lights are less of a headache. In many cases, you need a GFCI outlet to protect the lights and their owners from ground faults. Conventional LEDs are annoying in this arena because you have to find an outdoor socket that can power them. I like battery-powered fairy string lights because you can use them outside. The battery life will change depending upon load, voltage & battery types. But how well do they perform when you connect them to batteries? How Long Do Batteries Last In LED Lights?Ĭonsidering battery capacity of 2.5 Ah with a led light load of 3W and battery voltage of 1.5V, an AA battery last for 1.25 hrs while an AAA battery with 1.2 Ah lasts for 0.60 hrs. LEDs are supposed to be more efficient than incandescent lights.
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