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Could you explain the various rechargeable battery symbols and terminologies ?
By Editor - RechargheableBatteryInfo.com
Oct 27, 2005, 07:29
Answer :
"NiMH": Ni stands for Nickel, the M stands for Metal, and the H stands for Hydryde thus Nickel Metal Hydryde.
"mA": is the rate of charging as applied to rechargeable batteries. An amp is a coulomb of charge per second, a mA is one thousandth of that.
""mAh": Stands for milli-ampere hours and is a measure of energy. In our case it measures the capacity or amount of energy that batteries will deliver. For example, a 1000mAh capacity means that the batteries will last for 1 hour if subjected to a 1000mA discharge current. Also 1000mAh = 1Ah ( 1 Amp Hour )
"V": Stands for voltage. It measures the power of the batteries. For NiMH batteries, they are 1.2V. For alkaline batteries, they are 1.5V.
"C": "C" defines the rate at which a battery is charged or discharged. It is the capacity obtained from a new battery subjected to a constant-current discharge at room temperature. For example, draining a battery at 1C means to drain the capacity of a cell completely in one hour. Likewise, draining a battery at 0.2C means discharge a battery in 5 hours. For nickel-metal hydryde cells, the rated capacity is normally determined at a discharge rate that fully depletes the cell in five hours, or 0.2C.
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