Nickel metal hydride batteries and nickel-cadmium batteries are similar shape, and nickel-metal hydride batteries and nickel-cadmium battery cathode basically the same, are based on nickel hydroxide as the cathode, the main difference is that nickel-cadmium batteries is cadmium negative electrode active material used, but Ni-MH battery based energy storage alloy as negative electrode, the nickel-metal hydride batteries with more energy. At the same time in the electrochemical characteristics of Ni-MH battery with the nickel-cadmium batteries are also similar, so when using NiMH batteries can completely replace the nickel-cadmium batteries, the device without the need for any reform. The main characteristics of Ni-MH battery: 1, Ni-MH battery energy density than nickel-cadmium batteries great times; 2, can reach 500 full charge and discharge; 3, with a special charger can fast charge in one hour; 4, self-discharge characteristics of a good than the nickel-cadmium batteries, charged to retain longer; 5, up to 3 times the continuous high-rate discharge; can be applied range: cameras, video cameras, mobile phones, cordless phones, walkie-talkies, laptop, PDA, a variety of portable devices and electric power tools. Second, the advantages and disadvantages of Ni-MH battery Advantages: The discharge curve is very smooth to the consumption of electricity is about to complete, the voltage will suddenly drop. Ni-MH is a nickel hydroxide for the cathode to high hydrogen storage alloy as negative electrode, high-energy hydrogen storage alloy material makes nickel-hydrogen batteries have more energy. At the same time in the electrochemical characteristics of nickel-hydrogen batteries and nickel-cadmium batteries are also similar, so when using NiMH batteries can completely replace the nickel-cadmium batteries, the device without the need for any reform. Laptop battery ACER Laptop Battery ASUS Laptop Battery COMPAQ Laptop Battery Dell Laptop Battery HP Laptop Battery IBM Laptop Battery SONY Laptop Battery TOSHIBA Laptop Battery
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