subject: Ni-MH battery must be charged after the discharge is finished [print this page] Ni-MH battery must be charged after the discharge is finished
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.
Disadvantages:
Discharge is more complicated, self-discharge phenomenon heavier, less environmentally friendly.
Third, how the proper use of NiMH batteries?
Although Ni-MH battery can discharge up to 500 times life, but only to have a good product and the correct charge to use. There are many chargers on the market, the most simple step-down mains charger just after the rectifier for the DC, and then direct the output to the rechargeable battery, this charger is cheap, but will charge the battery life to a certain extent effects. On the Ni-MH battery, the charging time, charge current and voltage, and battery charging when the temperature is the three elements of a good charger to charge the battery process should have improved clinical monitoring and control. First, the rechargeable battery with a constant current mode requirement, and the size of the charge current has certain restrictions; Second, the charger must be able to monitor battery temperature and control; Finally, the rechargeable battery is fully charged voltage is increased to the normal voltage state, charger should be able to monitor and terminate the charge.
LG Laptop Battery LENOVO Laptop Battery
Note:
1, the purchase and preparation of the same brand battery charger or high-quality battery charger;
2, as little as possible by fast charging a nickel-metal hydride battery;
3, Ni-MH battery must be charged after the discharge is finished, or they may have caused irreversible memory effect of battery capacity reduction;
4, a number of NiMH battery case, marshalling the battery use;
5, against the environment at low temperature (0 C or less) and high temperature environment (45 C or above) the use of nickel-hydrogen batteries.
4, Ni-MH battery manufacturer
Speaking of rechargeable batteries will have to talk about the current market situation. Little contact with friends all know that some of Japan's SANYO (Sanyo) position in this area now! Accounted for more than 50% of the market share is not that many well-known manufacturers also provide OEM products, which includes our well-known SONY (Sony), FUJIFILM (Fuji), Kodak (Kodak), Maxell (Maxell ), Energizer (ENR), etc., and even the original can and SANYO (Sanyo) under a higher TOSHIBA (Toshiba) Sanyo also acquired the status of their control of the overall boss seems unshakable.
