When it comes to 12v battery, electric bicycles are the most commonly used, because, in the past, most electric bicycles used 12V lead-acid batteries. Later, with lithium batteries, the voltage was more sufficient and the volume was lighter, achieving 48V, 60V, which is also a common type of battery for electric vehicles.
Of course, not only electric bicycles but also starting power supplies, mobile power supplies, emergency power supplies, energy storage power supplies and so on all use 12V lithium batteries. Especially in recent years, everyone's enthusiasm for camping has led to convenient outdoor power supplies, as well as RV backup power supplies, which have been loved by the public. It is not only convenient, but also can be used by multiple devices and people, and there is no need to worry about the lack of electricity in electronic products outside, so it has become a must for camping and outdoor activities.
The starting power supply has been changed from lead acid to lithium electricity for another reason:
1. The price of high-end models supports lithium electricity to replace lead acid.
2. The design scheme and process route of high-rate lithium batteries are mature, and the discharge current of the start-stop power supply is very high, so a high rate is a basic demand. And it needs to meet the high rate at low temperatures.
3. Another important reason why the lead-acid battery is replaced by lithium is that the self-discharge of lead-acid batteries is large and their life is short. The same amount of electricity is stored in lithium and lead-acid batteries, and after a month, the lead-acid battery has less energy left. This is unacceptable for new energy vehicles whose energy comes all from the high-voltage battery pack, because the starting power supply is low to a certain extent, and the high-voltage battery pack will charge it.
What does a 12V lithium battery look like? (take electric bicycles as an example).
1. Voltage: twelve volts.
2. Battery capacity: according to the specific requirements of electrical appliances or equipment, there is no unified standard. In general, the battery capacity includes 2200mAh, 5Ah, 10Ah, etc., and some electric vehicles can reach 20AH or 50AH. The longer the parallel time of the battery, the greater its capacity.
3. Capacity: the capacity of 12V lithium batteries of different brands should be based on the battery capacity, and there is no fixed standard. The capacity of the battery is as big as it can be.
Weight: nowadays, most equipment is easy to carry. Lighter lithium battery suppliers such as electric cars need to use lead-acid batteries a long time ago, but now most electric vehicles have become lithium battery suppliers. This is because lithium battery suppliers have the advantages of being easy to carry, lightweight, small in size, and so on.
How to use a 12V lithium battery?
1. Charge and discharge current: judge the charge and discharge current of the lithium battery provider according to the power of the device provided. In the case of constant voltage, the larger the power supply, the greater the current required.
2. In the case of high temperature, the charging voltage is higher, which is very easy to cause overcharge, resulting in the loss of water in the charging process, drying ahead of time, and seriously reducing the service life of the battery. Survey data show that the service life of the battery will be reduced by 40% at a temperature of 45 degrees Celsius.
3, 12V lithium battery, when in use, will generate heat, if it is charged immediately after use, then in the process of use, it is likely to be "inflated".
