Factors you need to consider before using a higher mAh battery for solar lights Replacing the rechargeable battery that comes standard with a solar light depends on a couple factors. Now that we know a little bit more about batteries and their mAh rating let’s look at whether we can replace a smaller mAh battery with a higher mAh one. Can you use a higher mAh battery in solar lights? So, taking Battery B’s capacity (1000mAh), and dividing it by the current draw of the LED (20mA), we get 50 hours.Īs you can see, by increasing the mAh rating or capacity of the battery, we can increase the time the LED stays on for. Now, we are powering the LED with a 1000mAh capacity battery (an increase of 500mAh). Scenario 2: The LED is being powered by Battery B (1000mAh). Or, you could convert the Ah rating to mAh by dividing it by a 1000. If the Ah rating is used, then the current draw used in the equation will have to be in A. If you are using mAh ratings, then the current draw of the device you use in the calculation will have to be in mA. So, we know using a 500mAh battery can power a LED that draws 20mA for 25 hours (in an ideal world).Īn important note to make is the units you are using when doing these calculations. If we take Battery A’s capacity (500mAh) and divide it by the current draw of the LED (20mA), we get 25 hours. Since we know how much current the LED draws, we can calculate how long the battery lasts for.īelow is the equation to calculate how long a battery will last depending on how much current is being drawn. Scenario 1: The LED is being powered by Battery A (500mAh). There is also an LED that will be the component that the batteries will be powering (which draws a current of 20mA). Looking at a practical example will give you a better understanding of how battery capacities work.īelow we have two batteries (battery A and battery B), both with different capacities. Powering a motor is going to require more current than a LED for example. The mAh rating is used for batteries with lower capacities, while larger batteries used the Ah rating.Ī note to make is how long a battery will last also depends largely on the current draw of whatever the battery is powering. For the rest of the article I shall refer to the capacity as mAh. The rating of how much a battery can store is given by milli-Ampere-hours (mAh) or Ampere-hours (Ah). The mAh rating is how much charge a battery is capable of storing. The capacity (mAh) of the battery is the main characteristic of the rechargeable battery that we will focus on. Chemical Composition (Li-Ion, NiMH, NiCD, Li-Ion polymer).Below are few of the characteristics which vary from one rechargeable battery to the next There are many different varieties of rechargeable batteries available. Rechargeable batteries have the ability to be recharged and used again to power electronic devices.They differ from standard one use batteries (disposable batteries) which need to be disposed of when they run out of charge. The mAh rating of a rechargeable battery used in solar lights So, let’s take a closer look at the rechargeable battery. The main component we are concerned with when asked the question of whether you can use a higher mAh battery is of course, the rechargeable battery. The main components of a solar light include They can add a path of illumination when you return home during the night, or add some flare to your garden. Solar lights are a great addition to any front or backyard. Deeper look at the rechargeable battery and its mAh rating You will just have to make sure the dimension (size), as well as the voltage of the battery you are using matches the original solar light battery dimension and voltage which you are replacing. So, can you use a higher mAh battery in solar lights? Yes, you can use a higher mAh battery in solar lights to extend the hours that it stays on during the night. They are commonly found in front and backyards of homes helping illuminate paths, as well as providing great ambience.īut, some of the time solar lights come with batteries that have a low capacity (denoted by the symbol mAh), which don’t last very long. Solar lights utilise solar panels and the sun’s energy to light up spaces during the night time. Solar panels capture energy from the sun and convert it to electricity which we can store and use later to power devices. There are many different sources of renewable energy available to power our electronics that are beneficial to our environment.
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