18650 lithium ion battery

　　What are the precautions for UPS batteries, and how are they different from batteries?

　　1. Precautions when installing 18650 lithium ion battery

　　1. Do not install UPS batteries in sealed spaces or near fire, otherwise there is a risk of explosion and fire.

　　2. Do not cover the 18650 lithium ion battery with anything like vinyl film that may cause static electricity. Static electricity may sometimes cause an explosion.

　　3. Do not install UPS batteries in places where water may enter, otherwise there is a risk of electric shock or fire.

　　4. Please do not install the 18650 lithium ion battery in an environment exceeding -40 °C~60 °C.

　　5. Do not use ups batteries in places with dust, otherwise it may cause a short circuit in the ups batteries.

　　6. When putting the 18650 lithium ion battery into the box for use, pay attention to air circulation.

　　7. Do not press the upper cover with sticky or label-like objects. Because there is an exhaust valve under the upper cover, the gas generated in the battery will not escape.

　　8. Number of parallel connections - During float charging, plug-in terminal batteries can only be associated with a maximum of three columns. There are no special restrictions on bolt-on terminals, but the smaller the number of parallel connections, the greater the reliability. In addition, when connecting in parallel, it is necessary to consider making the wiring conductors and contact resistances between each column equal. In order to maintain a balanced charging and discharging battery in each column, please do not use more than three columns in actual use.

　　9. When using batteries with different capacities, old and new, and different manufacturers at the same time, the 18650 lithium ion battery and the machine may be damaged due to their different characteristic values, so please avoid using them.

　　2. The difference between UPS batteries and storage batteries

　　1. Different subjects

　　UPS: It is a system device that connects the battery to the host and converts DC power into commercial power through module circuits such as the host inverter.

　　Battery: It is a device that directly converts chemical energy into electrical energy. It is a battery designed to be rechargeable and can be recharged through a reversible chemical reaction.

　　2. Different functions

　　UPS: used to provide stable and uninterrupted power supply to a single computer, computer network system or other power electronic equipment such as solenoid valves, pressure transmitters, etc.

　　Batteries: The capacity and weight of batteries cannot be effectively improved, so they are used in automobile and motorcycle engines.

　　3. Different characteristics

　　UPS: When stabilizing the mains power supply, the input voltage range of UPS is relatively wide, generally from 170V to 250V, and the quality of the output power supply is quite high. The output voltage of a backup UPS is between 5% and 8%. The output frequency is stable at 1Hz.

　　Battery: Use a lead plate filled with sponge lead as the negative electrode, a lead plate filled with lead dioxide as the positive electrode, and 1.28% dilute sulfuric acid as the electrolyte.

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