After a long day of riding, my new bike is equipped with a Custom Ni-MH battery pack. I took my old NiteRider Digital Pro 12 bike battery and repurposed it for the custom Ni-MH battery pack. A cut up Nalgene water bottle serves as a battery cover. Scotch Super 33+ electrical tape is wrapped around it. It now doubles as a battery cover and a protective case for the battery.
The rechargeable Ni-MH battery is the most popular choice for high-power portable applications. The main benefits of this battery type are its long operational life and low maintenance costs. Its voltage is around 1.2 volts at normal discharge and drops to -0.2 volts during overdischarge. The reverse is true for Ni-Cd batteries and they reverse their performance under overdischarging. The rechargeable Ni-MH battery is suitable for use in rugged and aggressive environments and requires little maintenance.
Custom Lithium Ion Battery Pack are available in the same sizes as throwaway batteries. They can be reused thousands of times. They are more expensive than throwaway batteries, but they outlast their disposable counterparts. In fact, they can last for up to five to 10 years, compared to just a few months with a single use. These batteries are also better for the environment and can be recycled if necessary.
A rechargeable Ni-MH battery has a stable voltage, which means it is a good choice for many high-powered devices. Its high energy density allows it to replace conventional alkaline batteries in many different devices. The high energy density of a Ni-MH battery allows it to achieve longer run times, even under high loads. This makes them a great option for power tools and consumer electronics.
This type of battery is available here https://www.lithiumbatterychina.com/ in two versions. The normal version has the highest self-discharge, while the Low Self-Discharge (LSD) version has a lower capacity. Whether you need a high capacity or low self-discharge is a matter of preference. If you frequently recharge your batteries, regular NiMH will work well for you. However, if you plan to store them for several months, you should consider an LSD Ni-MH.
The newest rechargeable batteries feature a powerful chemistry called nickel-metal hydride, or NiMH. This chemistry has improved over the years with new chemical additives that improve its self-discharge and energy density. However, the downside of this battery chemistry is that it will degrade at high temperatures and should be stored at 40% or lower. Additionally, it must be discharged fully on a regular basis to prevent crystalline formation. These factors have made it a popular alternative to the more expensive Li-Ion battery.
Rechargeable batteries are a great choice for many uses. However, they may not be the best choice for your everyday devices. For instance, a single-use alkaline battery can last months or years when used in a low-power device, like a wall clock. A rechargeable battery may hang onto a lower charge for an extended period of time and could exhibit unexpected behavior.
Rechargeable Ni-MH batteries have a low memory effect, which means they can retain their full capacity after several charges. While alkaline batteries gradually lose their capacity, rechargeable Ni-MH batteries maintain a consistent voltage. They are also better for devices with high drain. Compared to single-use batteries, rechargeable Ni-MH batteries are far superior in most applications.