Majority of alkaline batteries that can be bought today are disposable ones but are you aware that there are also rechargeable alkaline batteries? These batteries, like the usual disposable alkaline batteries, are available in different sizes like 9-volt, AA, AAA, D, and C batteries. Rechargeable alkaline batteries have a different composition compared to other common rechargeable batteries like nickel cadmiums and nickel metal hydrides and therefore they have different application. Here are several significant information that you need to know concerning rechargeable alkaline batteries.
A rechargeable alkaline battery is also known as a rechargeable alkaline manganese battery. The main thing that you need to know about these batteries is that their initial energy is even lower than the regular disposable alkaline batteries. In addition, each charge cycle will further cause their energy capacity to decrease. This is due to the fact that rechargeable alkaline batteries is marked by a high internal impedance, so that they are unable to allow high currents. This very much influences the uses of this type of battery.
One more limitation of rechargeable alkaline batteries is that they only have a very brief life cycle. The trick in extending the life cycle of this kind of battery is by recharging it before the energy level gets too low. Discharging this battery by a smaller amount than 25% will let you charge it again for approximately a hundred cycles, by smaller amount than 50% it can be recharged for a few dozen cycles, while completely draining it will only allow you a not too many charge-discharge cycles.
Rechargeable alkaline batteries are advisable for two certain class of devices.
Low-drain devices like remote controls, wireless mouse, clocks, wireless smoke detector, and the like are very suitable for this type of rechargeable battery since they donâ€™t require much power. Gadgets that are utilized only every once in a while such as emergency lamps, portable radios, handheld electric fans, flashlights, and so on are also appropriate for this kind of battery since they are not frequently operated. In addition, a rechargeable alkaline battery has maintained the alkaline batteryâ€™s capacity to preserve its charge for years due to its very low self-discharge rate compared to nickel metal hydride batteries. Unfortunately though, this battery is not ideal for gadgets that need a lot of power like wireless drills, cameras, and the like.