Lithium batteries can not be overcharged or overdischarged, so almost all lithium batteries are used with a protection plate, but in the model and plant protection drones due to the need for ultra-high power, this type of battery battery protection is usually through the form of low battery alarm to tell the user to return to charging to protect the battery but not discharge, the regular lithium battery with a protection plate in use basically does not occur when overcharging and overdischarging. However, in the use of the process still need to pay attention to some matters. To avoid damage to the battery. Especially the electric car lithium battery, more expensive, high replacement cost, we should be more careful to use.
Things to pay attention to when charging the lithium battery
1) When the electric car lithium battery needs to be charged, we should first link the battery and the charger, and then connect the charger to the mains to open the charge. When the battery is fully charged, first unplug the power, and then disconnect the battery and charger. At the same time, when installing the lithium battery to the electric car, you should keep the key door closed. The reason for linking the battery and charger first is that doing so can avoid the firing phenomenon that occurs when the charger and battery are linked, which may have a risk of breakdown for both the battery's protection board (BMS) and the main body of the charger, and others in the same way
2) When the electric car lithium battery is fully charged, timely disconnect from the charger, although the lithium battery charger itself is equipped with the function of stop charging.
3) Do not charge in sub-zero temperature environment. 0℃ or below will not only fill up, but also accelerate the aging of lithium battery.
4) Charging should use the exclusive lithium battery charger, you can not use the roadside fast charger, 48 60 72 volt charger can not be mixed.
5) If you find that the battery is hot during the charging process should stop charging and use, timely check the charger and battery.
6) The charger and battery should be far away from the bedroom, the surrounding area to eliminate combustible materials, and keep dry.
(A) lithium batteries are afraid of cold and heat, do not use in extreme environments
Lithium ion migration rate in the electrolyte and electrode sheet is closely related to the temperature, theoretically the temperature between -20 ℃-55 ℃ can be used normally, in daily life, the lithium battery temperature between 5 ℃-35 ℃ is not harmful to the lithium battery, the northern users in winter as far as possible to take the lithium battery home storage, do not put it outdoors, the southern users to avoid the summer exposure to the sun.
(B) lithium batteries do not often deep charge and discharge
Lithium batteries are different from nickel-cadmium batteries and lead-acid batteries, lithium batteries do not have any memory effect, can be recharged at any time, anywhere, the battery has a residual charge will not only shorten the life of the battery, but also to maintain the battery and extend its cycle, for lithium batteries, the correct practice is slow charging rather than deep charging.
(C) to use the appropriate charger charging, avoid high current
The chemical activity of lithium batteries is much more active than lead-acid batteries, the requirements for the charger are higher, once the use of miscellaneous chargers or unsuitable fast chargers, not only the life of the lithium battery itself, serious overheating will lead to a short circuit of the diaphragm breakage and explosion.
(D) lithium batteries do not need to be activated, do not need trickle charging
Many users buy lithium batteries in accordance with the practice of lead-acid batteries first charge 10-12 hours, trying to activate the lithium battery, in fact, the lithium battery does not need to be activated, the normal charge and discharge after a few times the lithium battery automatically activated. In addition, some users are very superstitious trickle charge, in the use of lead-acid batteries, indeed charging longer time can be used longer, but lithium batteries are completely unnecessary. Because the charger and the protection board do not allow, the charger detects that the lithium battery is full, it will automatically disconnect the current, and the protection board of the lithium battery does not allow the charger to continue to charge the battery, because the lithium battery overcharge will be very dangerous, and in serious cases may explode and catch fire.
(E) Do not need to store a full charge
Electric car lithium battery bought, generally 2-3 cells, rarely a full charge, why is this? Mainly because the lithium battery companies in the production of batteries, a small amount of power processing up the danger will be significantly reduced, and more suitable for transport, in addition, the characteristics of the lithium battery itself is also in about 30% of the power activity appropriate, not too high nor low, more suitable for long-term storage, in addition to full charge storage time, will allow the lithium battery capacity to reduce. And also more dangerous, finally, pay attention to these points, your electric car lithium battery with a five or six years is no problem.
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