The unit milliampere-hour (mAh) is generally used to describe the capacity of a battery.
It is a unit that measures (electric) power over time. It is commonly used to measure the energy capacity of a battery. In general, the more mAh and the longer the battery capacity or battery life.
A higher number means that the battery can store more energy, so it has a higher capacity. Of course, this also means longer battery life for a given usage.
Battery life: The mAh of a battery will determine how much power is stored and how long it can run. the higher the mAh, and the more energy you have in reserves.
Lithium (Li-Ion) vs Nickel–metal hydride (NiMH)
In general: Batteries have a limited life which is defined by several factors such as the number of charge/discharge cycles, storage process, environment they are used in, and level of discharge/charge. Batteries with very large numbers of charge /discharge cycles may not hold a charge as well as newer ones. This extended usage may lead to impaired product performance but does not affect the safety performance of the device.
Batteries should only be used in specified temperatures. They are designed to optimally operate at room temperature; they will operate at cold and hot temperatures, however, not optimally.
The key difference between the lithium-ion and NiMH battery: The most obvious difference between Li-ion and NiMH batteries is the material used to store power. Lithium-ion batteries are made of carbon and highly reactive lithium, which can store a lot of energy. Nickel metal hydride batteries use hydrogen to store energy, with nickel and another metal (such as titanium) keeping a lid on the hydrogen ions.
Cost: Nickel metal hydride batteries are, right now, the less-expensive technology.
Which battery lasts longer: lithium batteries last longer. Lithium batteries are known for stable, long-lasting and reliable power.
Weight: Lithium batteries are usually lighter as well as smaller in weight as compared to NiMH batteries
Power & Discharge: Li-ion and NiMH batteries can actually hold a similar amount of power, but the lithium-ion cells can be charged and discharged more rapidly. Lithium batteries have lower self-discharge as compared to NiMH batteries. They can endure more charge and discharge cycles. As a result, they feature longer shelf lives.
Li-Ion batteries recharge quite much faster as compared to NiMH batteries. However, if a Li-ion battery gets fully discharged, it will be damaged Compared to the Nimh battery which can be brought down to 0 charge & will still charge (just don’t let them suffer from reverse polarity, or else they will be damaged). In general, batteries should not be allowed to deep discharge.
Motorola IMPRES battery:
It is a smart battery technology that is designed to lengthen battery life and maximize talk time.
With automated power management, IMPRES delivers accurate information on every battery in your fleet. IMPRES batteries can be charged 150 times more than standard batteries and gives a 43% increase in charge cycles.