18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
Sino Technology Manufacturer Group co.,ltd Home  >  product  >  polymer lithium battery
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

Sino Technology Manufacturer Group co.,ltd
Sino Technology Manufacturer Group co.,ltd

Nickel Hydride No. 5 batteries
Nickel Hydride No. 5 batteries
Nickel Hydride No. 5 batteries
Nickel Hydride No. 5 batteries
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Nickel Hydride No. 5 batteries

Nickel Hydride No. 5 batteries

Model: Ni-MH AA Rechargeable Battery

Capacity: 1500mAh

Voltage: 1.2V

Size: 29*29*50.5mm

Product origin: China


Application:

Drone, Soundbox, Medical Device etc.


Product description

Related Products

  Nickel-metal hydride lithium battery technology and repair method

  The repair method of Ni-MH battery, how to activate the Ni-MH rechargeable battery? MH-Ni batteries have no memory effect in theory. For batteries that have lost capacity due to memory effects, we can repeat them several times at a time with sufficient and one-time discharges, and most of them can be repaired. The main characteristics of MH-Ni batteries are small internal resistance and large discharge current, so many digital cameras use 1.2V MH-Ni batteries for power supply.

  The repair method of Ni-MH battery, how to activate the Ni-MH rechargeable battery? MH-Ni batteries have no memory effect in theory. For batteries that have lost capacity due to memory effects, we can repeat them several times at a time with sufficient and one-time discharges, and most of them can be repaired. The main characteristics of MH-Ni batteries are small internal resistance and large discharge current, so many digital cameras use 1.2V MH-Ni batteries for power supply. At present, MH-Ni batteries are used in different products, and a certain understanding of their use and maintenance is required. Many MH-Ni rechargeable batteries today are not damaged, most of them are discharged. Because the Ni-MH battery has a self-discharge reaction, the Ni-MH battery will not be overcharged for a long time, the internal resistance is too large, and the battery will be wasted if it is not charged. The energy storage electrical editor below introduces you to the maintenance methods of NiMH batteries. 1. Discharge the MH-Ni battery completely. According to the current condition of the battery, when the load discharge voltage is close to 0 volts, it takes about 5~10 hours to directly short-circuit the battery or use a 1-euro resistor. This prevents the battery from burning out due to accidental short circuits after adding water, and can reduce electrochemical corrosion during water immersion. Open the safety valve. Brands such as Sanyo and Sony have four holes in the positive terminal of the battery. You can see the rubber cover of the safety valve bent into a U shape using thin wire (I used pins with 1 to 4 resistors). Then insert about 2 mm from the bottom of the rubber cap to the center. The safety valve is forced to open like this, and it is bent into a U shape in order not to damage the rubber cap. 2. Boil the battery with boiling water until the foam stops bubbling, but remember not to boil the battery, but to boil the water to boil it up. Immediately put into a cold (room temperature) pure water bottle, wait about 1 minute, when some water is sucked in, immediately tighten the bottle cap and squeeze for about 10 seconds to let more water into the battery: Take out the MH-Ni battery, bake To dry, pull out the U-shaped wire, covering the skin. It is best to use a large Phillips screwdriver and a hammer. The center of the top is slightly concave to increase the sealing degree of the safety valve. The concave is 0.5mm, and there will be more dangerous situations when impacting. 3. After storage for 5 hours, charge and discharge should be repeated 3-5 times. Use fast charging for about half an hour, then use slow charging until the terminal voltage exceeds 1.45V (it takes a long time), then use a medium or slow charger. 4. Redefine capacity. After it is fully charged for 5 hours, the "ZB210 Multifunctional Battery Capacity Tester" discharges to the end in a 1-A cross-current manner, and then uses a paint pen to mark the capacity (10mAh, round shape) on the Ni-MH battery. How to activate the Ni-MH rechargeable battery 1. Do not use high voltage to activate the Ni-MH rechargeable battery, because the protection voltage of its protection board has upper and lower limits. High voltage will burn out the mos tube on the protection board. The activation of lithium batteries requires Charge the positive and negative poles of the charger directly to the positive and negative poles of the battery. When the voltage rises to the off-line voltage of the protection board, the protection board will work normally and charge and discharge normally. 2. The purpose of activation of new and old MH-Ni batteries is different, so short-circuit test should not be used to activate new batteries. After long-term use, the capacity of old NiMH batteries will decrease. At the same time, the effective output of the capacitor will be affected by the oxide layer produced by the internal electrodes, which will increase the internal resistance of the battery and cannot reverse the reduction in capacitance. Therefore, reducing the internal resistance of the battery is the key to activate the old NiH battery, otherwise the old NiH battery will be increasingly unable to adapt to high-current devices. 3. The self-discharge of the MH-Ni battery is relatively large, and it will gradually lose power during the long-term transition process, reducing the activity of the battery and entering a dormant state. If the battery is not charged and discharged many times, the output capacity cannot reach the rated capacity due to the memory effect of the MH-Ni battery. In the specific charging and discharging method, three full charging and discharging are usually performed, and the charging method is 0.1C. This is because the battery is not activated and the charging intensity is low, and high current charging will cause damage to the electrodes. The above is the activation method of lithium batteries. Lithium batteries need to be activated, but this is what lithium battery manufacturers have to do, not what users have to do.

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