Please follow the following guidelines when using lithium batteries

I. Environmental conditions for use

• Charging temperature: 0~45℃
• Discharging temperature: -20~50℃
• Storage temperature: -10~30℃
• Relative humidity: 5%~80% (25℃)

II. Safety precautions

It is strictly forbidden to put the battery into fire, heat, disassemble or short-circuit. When the battery is exposed to high temperature, fire or strong physical damage, the internal chemicals may react rapidly, causing extremely dangerous situations such as explosion and combustion. For example, grilling the battery close to an open flame or piercing the battery shell with sharp objects may lead to catastrophic consequences.

Be sure to avoid severe impact or squeezing of the battery. Strong external forces may damage the internal structure of the battery, causing problems such as electrode short circuit and electrolyte leakage, which in turn may cause safety hazards. For example, during transportation or use, the battery is severely collided or squeezed by heavy objects for a long time.

During charging and use, it is strictly forbidden for the battery to come into contact with water or be in a humid environment. The intrusion of moisture may cause the positive and negative poles of the battery to short-circuit, causing leakage, overheating or even fire. Especially when using or storing batteries in a damp basement, in the rain, or in an environment with extremely high humidity, you need to be extra careful.

If you find that the battery is bulging, leaking, abnormally hot or smelly, you should stop using it immediately and contact a professional for treatment. These phenomena are usually a sign of internal battery failure, and continued use may bring serious safety risks. For example, the internal pressure of a bulging battery increases and it is easy to rupture; the electrolyte of a leaking battery is corrosive and may cause damage to the human body and equipment.

III. Charging status

Always use a charger that fully matches the battery specifications for charging. The output voltage, current, and charging mode of the charger must meet the requirements of the battery, otherwise it may cause low charging efficiency, battery damage, or even safety accidents. For example, using a charger with too high a voltage will cause overcharging, while a charger with too low a voltage will not fully charge the battery.

Choose a well-ventilated, dry, and normal temperature (about 20-25°C) environment for charging. A high temperature environment will accelerate the chemical reaction inside the battery, affecting the charging effect and battery life; a low temperature environment may cause the charging speed to slow down or even fail to charge normally. For example, in hot summer, avoid charging in direct sunlight; in cold winter, try to move the battery to a warm room for charging.

During the charging process, ensure that the connection between the charger and the battery is firm and reliable to avoid poor contact. Poor contact will increase resistance and cause local overheating, which will not only affect charging efficiency, but also may damage the charger and battery. For example, regularly check whether the charging plug and socket are loose or oxidized.

Strictly abide by the charging time. The maximum charging time should not be more than 10 hours. When the indicator light of the charger shows that the charging is completed, the charger should be unplugged in time to prevent overcharging. Overcharging will cause the lithium ions inside the battery to be excessively embedded in the electrode material, causing structural damage and reducing battery performance and life.

IV. Discharge status

Always use within the discharge current and voltage range specified by the battery, and resolutely avoid overload discharge. Overload discharge will generate a lot of heat inside the battery, which may cause the battery to overheat, damage or even fail. For example, when an electric car accelerates sharply or a power tool is running at high load, pay attention to the change in current to avoid exceeding the battery's tolerance.

If the device is not used for a long time, the battery should be charged to about 50% and recharged every once in a while (recommended 2-3 months). Long-term storage at low power will increase the self-discharge of the battery, causing the battery to enter a deep discharge state and affect the battery performance; while storage at full power may increase the aging rate of the battery.

V. Storage conditions

Store the battery in a dry, well-ventilated environment without corrosive gases (optimal temperature is 5℃~25℃), and charge it for one hour every three months; a humid environment will cause the battery to get damp and corrode the battery shell and internal structure; corrosive gases may react with the battery material and affect battery performance. For example, avoid storing the battery in chemical warehouses, bathrooms and other places.

The battery should be kept in a half-charged state (about 50% power) during storage, and avoid storage with full power or no power. Storage with full power will increase the self-discharge of the battery and cause capacity loss; storage with no power may cause the battery to enter a dormant state and it will be difficult to restore normal performance.

VI. Maintenance and Care

Check the appearance of the battery regularly (recommended once a month), including whether the shell is damaged, deformed, corroded, etc., and whether the electrode is oxidized, loose, etc. If any damage is found, take timely measures to repair or replace it. For example, a damaged shell may cause electrolyte leakage, and loose electrodes may affect current transmission.

When cleaning the battery, wipe it gently with a clean, soft, dry cloth. Do not use a wet cloth or a detergent containing chemical solvents to avoid short circuiting or corrosion of the battery.

VII. Legal Disclaimer

The Company shall not be liable for any loss, damage or injury caused by the user's failure to properly use, store, maintain and care for the battery in accordance with the requirements of this instruction manual.

The Company shall not be liable for battery damage, malfunction or related problems caused by force majeure (such as natural disasters, war, terrorist activities, etc.).

The Company shall not be responsible for any problems caused by the user's unauthorized modification, repair or use of non-original accessories on the battery.

The Company shall not be liable for any loss or damage caused by the incompatibility of third-party products or services with this power lithium battery.

The Company shall not be liable for any indirect losses (such as business interruption, data loss, etc.) caused by the performance degradation or end of life of the battery during normal use.

Regardless of the reason for any direct or indirect loss caused by the user's inability to use this product normally, the Company shall only bear the responsibilities required by the applicable national laws.

VIII. Other matters

Dear user, for the safety of you and others, and for the normal use of the battery, please read the instructions in detail before using the lithium battery and charger.

Please keep the instruction manual properly. If it is lost, it will not be reissued.

Due to the continuous improvement of the product in technology and appearance, there may be differences between the actual product and the instruction manual. Please refer to the actual product.

The Company reserves the final right of interpretation of the instruction manual.

The Company reserves the right to modify the instruction manual and has the right to modify this instruction manual without prior notice.

I. Warranty Period

1.Conventional battery warranty period: 2-year limited warranty or 1,000 cycles for lithium iron phosphate batteries, 2-year limited warranty or 600 cycles for ternary lithium batteries (whichever comes first).

2.Golf cart battery warranty period: 5 years or 1,500 cycles (whichever comes first).

3.Each set of lithium batteries is guaranteed to be free of manufacturing defects during the warranty period, starting from the production date determined by the battery serial number.

II. Warranty Policy

1.Conventional battery: 1 year replacement + 1 year repair

2.Golf battery: 2 years replacement + 3 years repair

III. Limited Warranty Description

1.The warranty described is written specifically for LULIS brand batteries. LULIS has the final right of interpretation for all repairs or replacements of LULIS brand batteries.

2.For online diagnosis, customers need to use limited instruments for detection and diagnosis according to the requirements of Lulis engineers, provide diagnostic pictures and videos or online video docking. If the diagnosis result of Lulis engineers is a manufacturing defect, LULIS shall be responsible for replacement or repair. Replacement products or repair parts can be shipped together with the next batch of orders.

3.Replacement conditions: Battery charging and discharging failure occurs within the specified period of the battery and cannot be solved after guidance by LULIS engineers.

4.Capacity test requirements do not meet the requirements of the following table:

Usage time (month/cycle) Discharge time

0~12/500 cycles Discharge time ≦108min

13~24/1000 cycles Discharge time ≦100min

Test conditions:Under the temperature of 25±5℃, fully charge the battery pack with 0.2C current and then discharge it with 0.5C current

In principle, all accessories (charging and discharging ports, BMS, coulomb meter, etc.) have a 1-year warranty.

Warranty applies only to the original owner (non-transferable).

Warranty Exclusions

For products that meet the following conditions (including but not limited to), LULIS shall not assume any obligations under this limited warranty:

• Charging the battery pack with an unqualified charger or a charger that does not match the battery pack;
• The battery pack does not match the vehicle model or is used in excess of the maximum design current;
• Damage caused by water immersion or other chemical corrosion inside the battery pack;
• The battery pack shell is cracked, damaged, deformed, torn, the invalid mark is damaged (torn off manually, broken in the middle), and the battery shell is opened privately;
• Product failure caused by human factors such as private repair, disassembly, modification, etc.;
• Product damage caused by irresistible external forces or natural disasters;
• External short circuit of the battery pack;
• Damage caused by battery power feeding due to long-term non-charging of the battery pack;
• Damage caused by placing the battery in a high temperature environment, such as heating, near a fire source or exposure to sunlight
• The battery pack has expired or the battery pack laser code is damaged, and it cannot be determined whether it is produced by Party A;
• Human tampering and erasure of the battery code;
• Other exemption conditions protected by relevant laws and regulations
• Products used in applications other than their designed and intended use
• Products not stored in accordance with the manufacturer's storage guidelines, including storing the product in a low-charge state.
• Products not used in accordance with the product's instruction manual

This limited warranty does not cover products that have reached the end of their normal useful life due to use for more than 1000 charge and discharge cycles within the "Warranty Period". Batteries can only provide a fixed amount of energy during their useful life, which will occur in different time periods depending on the application. For example, cycling the battery more than 1 time per day will result in normal end of life before the end of the warranty period. This warranty does not cover normal performance degradation over time.

LULIS reserves the right to deny warranty claims even within the warranty period if inspection determines that the product has reached the end of its normal useful life.

Disclaimer

LULIS's sole liability for breach of the battery warranty is to replace the battery during the warranty period in accordance with the terms of this limited warranty. In no event shall the manufacturer be liable for any other type of loss or damage, whether direct, incidental, consequential (including lost profits), punitive, special or otherwise, including any lost profits or relocation, transportation or installation costs.

Lifetime Technical Support

All customers covered by this warranty will receive lifetime technical support, including advice on charging, use, storage, and general questions about LULIS batteries. Technical support is available for as long as the customer owns and uses the LULIS battery.

Non-Warranty Repairs

LULIS will do its best to provide technical and repair support after the warranty period (repair support is subject to appropriate fees).

This warranty does not cover neglect or misuse of the battery or normal wear and tear. This warranty will be void if LULIS believes that the battery accessories have been used improperly.

Warranty applies only to the original owner (non-transferable).

If you have any questions about our products, please contact your place of purchase. If you need further assistance, please contact us.

The service life of power lithium batteries is usually about 1000-2000 charge and discharge cycles, and the service life of energy storage lithium batteries is usually about 5000-8000 charge and discharge cycles, depending on the choice of cells, usage conditions and charging methods. Regular maintenance and proper use can effectively extend the lifespan of the battery.

Whether it’s lithium batteries powering your devices or home energy storage systems, proper maintenance is the key to extending service life, ensuring safety performance, and maintaining optimal power endurance. Follow these essential maintenance tips to keep your lithium batteries in peak condition!

• Control Charging Cycles, Avoid Over-charging and Deep DischargingOver-charging and deep discharging are two major enemies of lithium batteries. For daily use, you can stop charging once the battery reaches 80%–90% instead of charging it to 100% every time. When discharging, never let the battery run down to 0%—it’s advisable to recharge it promptly when the remaining power is around 20%. This effectively reduces the wear and tear of chemical substances inside the battery and slows down capacity degradation.
• Maintain Stable Operating Temperature, Stay Away from Extreme EnvironmentsLithium batteries are highly sensitive to temperature, with the ideal operating and storage temperature ranging from 20℃ to 25℃.
• Avoid using or charging the battery in high-temperature environments, such as inside a car exposed to direct sunlight in summer or near heat sources. High temperatures will accelerate battery aging and even pose safety risks.
• Low temperatures will temporarily reduce battery activity, resulting in shortened power endurance. Do not store or force the battery to work in sub-zero low-temperature environments for an extended period.
• Use a Compatible Charger, Reject Inferior ProductsAlways use a genuine original charger or a certified compliant product for charging. Inferior chargers with unstable voltage and current not only damage battery cells and reduce charging efficiency but may also cause short circuits, swelling, and other safety issues, which seriously affect the service life of lithium batteries.
• Master Long-term Storage Skills, Recharge Regularly to Maintain ActivityIf you need to store the lithium battery for a long time without use, keep these two points in mind: 1.Adjust the remaining power to 40%–60% before storage, which is the optimal power range for battery preservation. 2.Recharge the battery every 1–2 months to maintain the chemical activity inside and prevent irreversible damage caused by long-term power depletion. Meanwhile, store the battery in a dry, well-ventilated place, away from moisture and corrosive gases.
• Handle with Care to Prevent Damage, Perform Daily Maintenance ProperlyAvoid severe impacts, extrusion, or dropping of the lithium battery. Physical damage will destroy the internal structure of the battery cells, leading to leakage, swelling, and other malfunctions. During daily use, clean the dust and stains on the battery interface in a timely manner to ensure good contact and stable charging and discharging processes.
• With scientific maintenance, every charge of your lithium battery delivers reliable performance!
• Choose lithium batteries from Zhejiang Tieying Power Energy Co., Ltd.—professional quality combined with careful maintenance, providing solid support for your devices and energy storage systems.