12V lithium battery price
The price of 12V lithium battery is mainly composed of three parts: battery cell, protection plate and shell. At the same time, due to the power consumption and current of the electrical appliance, the material of the connecting piece between the cells (conventional nickel sheet, formed nickel sheet , copper-nickel composite sheet, jumper, etc.) selection will affect the cost, and different connectors (such as plugs, ranging from ten yuan to thousands of yuan) may also have a greater impact on the cost, and different PACK processes will also affect the cost.
Factors affecting the price of 12V lithium battery
Batteries
Lithium batteries include lithium manganate (3.6V), lithium cobalt oxide (3.7V/3.8V), nickel cobalt lithium manganate (3.6V), lithium iron phosphate (3.2V), lithium titanate depending on the positive electrode material. (2.3V/2.4V) and other battery cells of various material systems, the voltage platform, safety factor, cycle times, energy density ratio, operating temperature, etc. of the cells of different material systems are different, so the price will also be different. different.
brand
Different lithium battery brands have obvious price differences, mainly because the quality (safety, consistency, stability, production process, etc.) of each brand of batteries is basically proportional to the price.
capacity
When the voltage of the 12V lithium battery is determined, the larger the capacity, the higher the cost and the higher the price.
Protection board quality and circuit design
High-quality lithium batteries use high-quality electronic components and protection boards, as well as multiple protection circuit designs, which not only improve the charging and discharging circuit, but also have multiple designs such as constant temperature and constant voltage, overcharge, overdischarge, overcurrent, and short circuit. You and your equipment create a safe environment to use, so the price will be affected by these two factors.
12V lithium battery pack
The 12V lithium battery pack is a lithium battery pack composed of 3 or 4 lithium batteries connected in series, and several lithium batteries are connected in parallel. Therefore, the capacity of the 12V lithium battery can be customized.
Common capacity of 12V lithium battery pack
4Ah, 5Ah, 7Ah, 8Ah, 9Ah, 10Ah, 12Ah, 17Ah, 18Ah, 20Ah, 30Ah, 40Ah, 50Ah, 100Ah, 200Ah, etc.
12VDC lithium battery
The 12V DC lithium battery is converted by a step-up/step-down circuit to stabilize the output voltage of the lithium battery at about 12V to meet the use of constant voltage working equipment. It is a standard DC battery with universal and easy compatibility. Change some of its characteristics to meet the use of different electrical equipment.
12V lithium battery application field
Lighting industry: solar street lights, solar insecticidal lights, solar garden lights, solar energy storage power, etc.;
Power field: power tools, robots, AGV, vacuum cleaners, electric sprayers, RC fields, etc.;
Consumer electronics: Bluetooth audio, loudspeaker fields, LED lamps and various electronic equipment, etc.;
Energy storage field: communication base stations, data centers, home energy storage, wind and photovoltaic energy storage, etc.;
Special fields: medical equipment, security power, special equipment, etc.
12V lithium battery charger
The 12V lithium battery charger is specially used to charge the 12V lithium battery. Lithium-ion batteries have higher requirements on chargers and need protection circuits, so lithium-ion battery chargers usually have high control precision and can charge lithium-ion batteries with constant current and constant voltage.
12.6V 7A Lithium Battery Charger
12.6V 7A lithium battery charger Input voltage: 100-240V, 50-60Hz Output voltage: 12.6V Output current: 7A Product application: 3 strings of 11.1V lithium battery pack
11.1V 5A LiFePO4 Battery Charge
11.1V 5A LiFePO4 battery charger Input voltage: 100-240V, 50-60Hz Output voltage: 11.1V Charging temperature: 0 ~ 45℃ Output current: 5A
Product application: 3 strings of 9.6V lithium iron phosphate battery pack
12v lithium battery and lead acid battery charger
Lead-acid battery chargers are generally set to two-stage or three-stage charging mode, and the voltage levels of 12v lithium batteries and lead-acid batteries do not match. There are many kinds of lithium batteries, and the battery performance and battery protection board parameters may be different. Therefore, lithium batteries do not have universal battery chargers like lead-acid batteries. Generally speaking, the 12v lithium battery is equipped with a special charger when it leaves the factory. In order to protect the lithium battery, it is best to use the corresponding lithium battery special charger.
Precautions for the use of 12V lithium battery
1. 12V lithium battery charging
charging method
The charger used for 12v lithium battery charging should meet the three-stage characteristics of lithium battery charging, and need to have and complete three stages of pre-charging, constant current charging and constant voltage charging. For this reason, the original 12v lithium battery charger is good, when the original charger is damaged, don't blindly buy other chargers to charge the 12v lithium battery.
ambient temperature
When charging the 12v lithium battery, the ambient temperature should not exceed the range of 0~40℃.
Charge cut-off voltage
The 12v polymer lithium battery has a charging cut-off voltage of 12.6v, and a balanced charging method is required to ensure that the voltage of a single cell does not exceed 4.2V.
recharging current
If it is not urgently needed, it can be charged at 0.2C, generally not more than 1C.
2. 12V lithium battery discharge
ambient temperature
Discharge is the working state of the 12v lithium battery, and the temperature requirement at this time is -20~60℃.
Discharge termination voltage
The standard of discharge termination voltage of polymer 12v lithium battery is 8.25V, and some can be set to 9V.
Discharge current
12v polymer lithium battery packs also have high current, large capacity and other types. The current of polymer lithium batteries that can perform high power discharge should be controlled within the scope of the product specification.
3. 12V lithium battery self-discharge
The charging capacity of the 12v lithium battery in the storage state is between 40 and 60%. Of course, it is impossible to maintain it all the time. For example, the mobile phone usually hits the prompt to charge. The stored 12v lithium battery will also be troubled by self-discharge. Long-term self-discharge will cause over-discharge. Therefore, we need to prepare both hands for the self-discharge of 12v lithium battery.
recharge regularly
Charge the 12v lithium battery regularly to keep the voltage between 10.8v-11.7v, because the lithium battery has no memory effect and can be charged at any time.
Make sure that the end-of-discharge voltage is not breached. If the battery is insufficient during use, stop using it decisively and charge the battery.
