Lithium polymer battery charging criterion is introduced

Source: 2020 - 04 - 12 he hits: first lithium batteries because of its unique charging and discharging speed, high unit weight energy and favored by the majority of mould friend. For users, the correct use of lithium-ion batteries and charging is very important. I charge safe if you are careless or lazy to observe the safety rules, you might as well give up lithium battery. This is because the use of lithium battery charge is one of the most dangerous process, not only to use a dedicated charger ( FIG. 1) Number, and set up correctly and battery voltage, otherwise it is easy to cause fire. Lithium batteries and nickel-cadmium batteries, nickel metal hydride battery charging in a different way, need special charger. In general, can give a lithium-ion battery charger can also give lithium polymer battery, as long as the number of battery is fixed. Don't use nickel cadmium battery or nickel metal hydride battery charger for lithium battery, the consequences can be very dangerous. Polymer lithium battery charging standard: 1. Using compatible with lithium battery charger. Charger is specially designed for lithium ion batteries, are not expensive. Some models of friends like to use the old cell phone battery charger into lithium battery charger, this practice has safe hidden trouble, is not recommended. 2. To ensure that the correct Settings cell number ( FIG. 2) 。 In charge of a few minutes before, also want to check if the number of battery charger shows is always right. 3. In front of the lithium battery to charge for new purchase, please check each battery voltage ( Figure 3) Charging and discharging, and every 10 times for this operation. This step is important because imbalance of lithium battery when charging easy to catch fire. If the differential pressure between each battery more than 0. 1 v, each battery should be separate charge to be 4. 2v。 If one is not balance, before each charge means that the battery is broken, need to change. 4. Lithium battery charge of the whole process is inseparable from the people's supervision. All kinds of lithium battery led to houses and cars on fire accident ( Figure 4) Has often been reported ( Figure 4) And these accidents are occur in the absence of supervision. 5. The best charging in a safe place, do not use ceramic plate, flower pot with a layer of sand flammable objects (such as FIG. 5) 。 Lithium battery won't cause fire burning. 6. Unless otherwise stipulated in the product manual, do not charge more than 1 c. Despite today's battery can withstand higher charging current, but it still will shorten the battery life and increase the likelihood of a fire. If you really need to buy more battery and rotate them ( Figure 6) So you don't have to rush to recharge. 7. Lithium battery is not allowed. If it is lithium battery pack, do not use. Place it in more than two hours away from combustible materials. If there is no danger, light bulb (with a flashlight Rated voltage higher than the battery voltage) Connect the positive and negative of the battery discharge ( Figure 7) 。 The light bulb completely after dark, remove the battery and put in sorting box. 8. In the event of 'bang', lithium battery is likely to damage ( Figure 8) , even if the appearance in good condition, internal circuit may also occur because of the collision. In this case, the lithium battery will be immediately removed from the model, and put in more than 20 minutes away from flammable items, to eliminate fire hazards. Once a model friend throws a piece of bad battery into his car, resulting in a fire, burned the whole car. Charge in a well-ventilated place. Because if the battery explosion combustion, can produce a large number of harmful gas, will dissipate quickly in a well-ventilated place. 10. Equipped with lithium battery fire extinguisher or a bucket of sand, Figure 9) So that the combustion in lithium battery explosion, fire can quickly and efficiently. Don't risk. Anyone can include fires, and easy to escaped. Lithium-ion batteries with care and avoid all security risks.