The IMR Battery can be defined as a rechargeable lithium-ion manganese battery. It is usually available in round shape; the first letter printed on the battery represents anode, second can be identified as a cathode. These batteries are different from other commonly available li-ion rechargeable batteries in terms of their chemical makeup.
Generally, the IMR Batteries make use of Manganese oxide in the cells whereas the Li-ion rechargeable batteries make use of Cobalt Oxide. Same as most other batteries, IMR Batteries are also available in different sizes and shapes. The most widely used sizes include 16340, 14500, and 18650.
What is the capacity of the IMR Battery?
One important thing that attracts the attention of flashlight users to specific batteries are their mAh ratings. A higher number indicates their ability to hold more charge. But now the second thought in your mind may be that IMR batteries generally have almost half the mAh numbers as compared to other rechargeable Li-ion batteries in the market.
The biggest reason why the mAh number of these batteries is lower is that they are made up of Manganese instead of Cobalt. However, it is important to mention that IMR Batteries are comparatively more reliable due to their higher drain on lower temperatures.
Why IMR Batteries are safer choices?
Some of you may question the safety of IMR Batteries; mainly because most of these do not have a special protection circuit. However, many new-age brands have started adding protection circuits to the battery design.
The internal resistance of IMR Batteries is generally lower as compared to Cobalt batteries. Therefore, their temperatures also stay lower and this is the main reason why IMR Batteries are considered a safer solution.
The IMR batteries are also known to have a higher discharge rate and they recharge comparatively faster than other Li-ion batteries. These features make IMR Batteries the best choice for flashlights that are operated on high current ratings.
Many experts discourage users from having unprotected cells within flashlights because the high-rate charging and discharging of such batteries further lead to high temperatures. In case if you are not careful about monitoring the IMR Battery within your flashlight, it may create a major risk to the entire system. While using an unprotected cell within the light, regular monitoring is very important. The battery should not drain below 3 volts.
The unprotected IMR Batteries are not able to shut off on their own; therefore, they can drain too far and ultimately enter a danger zone. Many smart chargers are designed to shut off automatically when the battery reaches around 4.2 volts, but accidents are still possible
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