| When weighing the cost differences between batteries, their relative values can be assessed based on two categories: the energy capacity, measured in Milliamp Hours (mAh) and the different properties of the chemistry inside. Capacity is measured in Milliamp Hours (mAh). mAh is commonly used to describe the total amount of energy a battery can store at one time. So, the more mAh the longer your battery will last, before needing to be recharged. As far as battery chemistry technology available today, there are 3 types: nickel-cadmium (NiCd), nickel-metal hydride (NiMH), and Lithium-Ion (Li-ion). Lithium-Ion is by far the best since they have one of the best energy-to-weight ratios, no "memory effect", and a slow loss of charge when not in use. The "Memory Effect" is an effect observed in nickel cadmium rechargeable batteries that causes them to hold less charge. NiCd batteries gradually lose their maximum energy capacity if they are repeatedly recharged after being only partially discharged. The battery appears to "remember" the smaller capacity. A NiMH battery can have two to three times the capacity of an equivalent size Nickel-cadmium battery and usually only cost a little more. Like the lithium-ion battery the NiMH battery has no memory effect but it's self-discharge rate is higher. NiCd Batteries cost the least but they have the lowest capacity and they suffer from the "memory effect", and as such, typically need to be replaced after 2-3 years. With careful consideration about what battery capacity and chemistry would work best for your business, we believe you get the most out of your radios. |
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| How to choose the right battery |