LiPo Manual

Introduction:

• Polymer lithium-ion battery case material uses plastic film. This plastic film is a very thin composite film and needs to be protected when used.
• Compared to steel-cased or aluminum-cased batteries, Li-ion polymer batteries are safe and reliable; however, if they are damaged by force (such as punctures, punctures, crushing, etc.) or abnormal use (such as short-circuiting, overcharging, etc.), they may not necessarily but may produce problems such as electrolyte leakage, gas expansion and heat.
• Incorrect use and operation methods will reduce the battery performance and cause problems such as battery heating, gas expansion, rupture and smoke. Please refer to this manual and specifications for proper use of our products.

Precautions for Battery Operation

 

1. Aluminium plastic film packaging film protection

• Since the aluminum plastic film, the outer packaging material of the battery cell, is easily punctured by sharp objects, it must be handled carefully to prevent damage to the aluminum plastic film.
• It is forbidden to bump or scratch the surface of the battery with sharp objects.
• The battery installation position and cell press contact surface must not have sharp corners or bumps to prevent the battery from being crushed and produced badly after the battery is installed.
• Avoid contact between the conductive body (including lugs, leads, electronic components, etc.) and the fracture of the aluminum plastic film to prevent poor insulation resistance caused by the contact between the low electric end and the fracture, or short circuit at the fracture position of the aluminum plastic film.

 

2. Pole ear protection

• The mechanical strength of the battery lugs is not very strong, and they are easy to break when bent, especially the positive lugs; it is forbidden to bend the lugs several times.
• Be careful not to pull strongly on the positive pole lug.
• Repeated bending of the pole lug will cause the pole lug to break.

 

3. Folded edge protection

• Battery folding has been completed in production, and it can not be arbitrarily folded. It is extremely easy to damage the battery by randomly folding the folding head of the battery cell. It is forbidden to open or destroy the folded edge and folded head of the battery.
• Do not bend or open the battery folded edge at willfor it is easy to damage the aluminum plastic film packaging film.
• Do not bend the folded head of the battery at will, because it is easy to damage the battery.

 

4. Mechanical impact

• Prohibit hitting, stepping hard or otherwise impacting on the battery with hard objects.
• Prohibit dropping, throwing or arbitrarily bending the battery to prevent it from being damaged.

 

5. Short circuit protection

• Short-circuiting can lead to serious damage to the core; short-circuiting the core is prohibited at all times.
• Prohibit direct contact between positive and negative pole lugs or both with metal objects.
• It is forbidden to connect the positive and negative electrodes directly with metal wires.

 

6. Welding protection by operation

• It is recommended to use less than 100W thermostatic soldering iron in the pole lug wound solder, and the temperature needs to be controlled below 350℃.
• The tip of the soldering iron should not stay on the pole lug for more than 3s and the number of soldering should not exceed 3 times in a row.
• The pole lugs must be cooled before re-soldering.
• Prohibit the tip of the soldering iron from touching the surface of the battery.

 

 

Precautions for Battery Use

1.Charging

• When charging, the charging current, charging voltage and charging temperature should not exceed the specified standards. If the specified value is exceeded, it may cause damage to the charging and discharging performance, mechanical performance and safety performance of the battery cell, which may lead to battery heating, air bulge and leakage or even fire.
• Do not leave the battery unattended while charging.
• Please use a charger dedicated to Li-polymer batteries for charging.
• Charging voltage: The charging voltage should not exceed the charging voltage specified in the product specification;
• Charging current: The charging current must not exceed the maximum charging current specified in the product specification.
• Charging temperature: Charging must be done within the temperature range specified in the product specification.
• Prohibit reverse charging: Connect the positive and negative terminals of the battery correctly, and reverse charging is strictly prohibited. If the positive and negative terminals of the battery are reversed, it will not be possible to charge the battery.
• If the positive and negative terminals of the battery are reversed, it will not be possible to charge the battery cell. At the same time, reverse charging will reduce the charge and discharge performance and safety performance of the battery cell, and will lead to heat and leakage.

 

 

2.Discharge

• Discharge current: The discharge current should not exceed the maximum discharge current specified in the product specification. High current discharge will result in a reduction in the discharge capacity of the battery and lead to overheating of the battery and a reduction in cycle life.
• Discharge temperature: the battery discharge must be carried out within the working temperature range specified in the product specification (usually between 0℃~45℃).
• Over-discharge: Over-discharge can seriously damage the performance of the battery, and the voltage of the single cell should not be lower than 2.75 V. In addition, during a long period of time when the battery is not used, it may be in some over-discharge state due to its self-discharge characteristics. To prevent the occurrence of over-discharge, the battery should be charged regularly so that the single cell voltage is maintained between 3.6V and 3.9V.

Precautions for Battery Storage

• The long-term storage temperature range of the battery is -20℃~+35℃, relative humidity is 45%~85%, and the voltage of the single cell is 3.6V~3.9V. Please refer to the relevant clause in the product specification for details.
• When not using the battery, please be sure to remove the lithium polymer battery from the device and store it in a sealed and flame retardant container.

Other Precautions

In order to prevent the battery from possible leakage, heat and fire, please note the following precautions.

1. Prohibit dismantling the battery or changing the battery structure at will under any circumstances:.
2. Prohibit the operation or use of the battery in a high temperature environment or next to a heat source.
3. Prohibit heating the battery or putting it into the fire.
4. Prohibitthrowing the battery into water or putting it in a humid environment.
5. Polymer lithium-ion batteries are theoretically free of flowing electrolyte, but in the event of electrolyte leakage and contact with skin, eyes or other parts of the body, flush with water and seek medical attention immediately.
6. It is forbidden to use the cell that has been damaged (cell sealing edge damage, broken shell, smell electrolyte, electrolyte leakage, etc.). When operating the battery, if heat is found, keep away from the battery immediately to avoid unnecessary injury.