PRODUCT MANUAL
Product Name: Lithium-ion Battery Pack
Specification:48V10A
Shandong Tian Han New Energy Technology Co.
Correct use and maintenance can ensure that your battery (or battery system) runs reliably and stably for a long time
After receiving the product, please check whether the packaging is intact. If the packaging is damaged, the product may be damaged.
If it is damaged, please contact our after-sales or sales staff within five working days. Anyone who does not use and maintain in accordance with the provisions of this manual shall be deemed to have waived the warranty rights. Our company and its service station have the right to no longer provide a warranty, and will not compensate for all losses arising therefrom, but can provide corresponding Paid service
Tianshan New Energy Technology Co., Ltd. and its service station have the right to no longer provide a warranty, for the resulting
No compensation will be made for all losses, but corresponding paid services can be provided according to the situation
Head Quarter
Address: Fuyuan Fifth Road, High-tech Zone, Zaozhuang City, Shandong Province, China Post Code: 277000 Website: http://www.thbattery.com
Product Index
1.1 、Cell
1.1.1 、Cell specifications
| Item | Specification | Note | |
| Standard discharge Capacity | Nominal | 2600mAh | 0.5C discharge |
| Minimum | 2550mAh | 0.2C discharge | |
| Alternating Internal Resistance | Maximum | ≤20mΩ | AC 1 kHz |
| Nominal Voltage | 3.6V | ||
| Charging Voltage | 4.2V | ||
| Standard Charge Conditions(Constant current charging and then constant voltage charging) | Current | 0.5C (1300mA) | |
| Voltage | 4.2V | 25°C±2°C | |
| Cut-off Current | 68±2 mA | 0.02C | |
| Max Charging Current | 0°C≤T≤45°C | 1C （2600 mA) | |
| Standard Discharge Conditions （Constant Current Discharge） | Current | 0.5C (1300 mA) | 25°C±2°C |
| Cut-off Voltage | 2.5V | ||
| Max Discharge Current | Suggest 5°C≤T≤45°C | 7200mA | |
| Working Temperature | Charge | 0～45°C | |
| Discharge | – 10~60°C | ||
| Storage Temperature | 1 year-20~23℃ | 3 months -20~45℃ | 1 month -20~60℃ |
| Weight | ≤50g | ||
| Dimension | Height | Max.65.25mm | |
| Diameter | Max.φ 18.5mm | ||
| Appearance | Without a break, scratch, distortion, contamination, leakage, and so on | ||
1.2 、Lithium-ion Battery Pack
1.2.1 、 Battery-related parameters
| Items | Parameters | |
| Battery Model | TH-4810-G18-QT（THLB18650-3.6V- 13S4P） | |
| Nominal voltage | 48V | |
| Typical capacity | 10±0.2Ah( At 0.2C discharge rate) | |
| Discharge | Working current | ≤ 10A |
| Over-current protection current | 20±3A | |
| Cut-off voltage | About 35V | |
| terminal | 14AWG， length 300mm | |
| Charge | Voltage | 54.6±0.5V |
| Max charging Current | ≤10A | |
| Charge mode Charging cut-off current | CC/CV， please use a special lithium charger | |
| About0.5A | ||
| terminal | DC2.1 | |
| Operation Temperatur e | Charge | 0℃～+45℃ |
| Discharge | -20℃～+60℃ | |
| Storage Temperature | -20℃～60℃ | |
| Discharging Inner Resistance | ≤ 150mΩ | |
| Protection Function | Overcharge protection, over-discharge protection, temperature protection, and short circuit protection | |
| Shell Material | SSE-046/ABS | |
| Weight | 2±0.5Kg | |
| Size（L*W*H） | （360±2）mm *（ 82±2 ）mm*（ 132±2）mm | |
| Cycle | The cycle life is not less than 500 times, and the capacity retention rate is ≥80%. (Charge according to 3.2 standard charges, put it aside After 0.5～1h; discharge according to the 3.3 standards, put it aside for 0.5～1h, count as 1 cycle). |
1.2.2 、Charge and discharge curve
1.2.3 、Size 
1.3 、BOM
| NO | Material specifications |
| 1 | Cell |
| 2 | BMS |
| 3 | Nickel strap |
| 4 | ABS |
| 5 | Conductor |
| 6 | labeling |
How To Use The Battery Pack
2.1 、Recharge
Connect the charging terminal of the battery pack to a suitable charger (the charging voltage is 42±0.5V, do not reverse it) for charging.
2.2 、Discharge
Pay attention to the positive and negative poles (as indicated by the battery shell logo, do not reverse them), and connect them to the matched load.
Battery Pack Test
The single battery and protection circuit parameters are only the standard test data when used as separate accessories for reference.
3.1 、Battery pack test requirements The tested battery pack leaves the factory for no more than one month. If the battery pack is not tested due to other reasons such as transportation, the battery pack can be recharged and discharged for a test. The tests in this manual should be carried out under standard atmospheric conditions: temperature: 25±2℃; relative humidity: 65±20%.
3.2 、Standard charging Use a special test cabinet for lithium-ion battery packs, charge with standard charging voltage, standard current, and constant current and constant voltage until the current drops to 0.05 I5。
3.3 、Standard discharge
Use a special test cabinet for lithium-ion battery packs to discharge at a standard current and constant current until the standard discharge cut-off voltage or the battery pack is cut off.
Battery Pack Use Environment Requirements
The battery pack discharge environment temperature is -20℃ ～+60℃ (when the environment temperature is greater than 45℃, please pay attention to ventilation and heat dissipation); The charging environment temperature is 0℃～+45℃. Environmental humidity RH≤85%. When the environmental humidity is greater than 85%, pay attention to waterproofing, and avoid condensation on the surface of the battery pack
Pay Attention
To make full use of the energy efficiency of the lithium-ion battery pack and prevent the battery pack from leaking, heating, and other accidents, please prohibit the following precautions： It is strictly forbidden to immerse the battery pack in water. Once it enters the water or the water enters the battery, immediately isolate and treat it and ask a professional to handle it; It is strictly forbidden to charge, discharge, or leave the battery pack at a high temperature exceeding 60℃, and keep it away from fire, heaters, corrosive materials, etc.
Otherwise, it may cause the battery pack to overheat, catch fire or function failure, shorten the life span, and even cause danger; Never charge the battery pack below 0°C； It is strictly forbidden to reverse the positive and negative poles of the battery pack, and it is strictly prohibited to short-circuit the positive and negative poles of the battery pack; Any unit exceeds its operating current. New and old battery packs or battery packs of different batches cannot be used in parallel. It is strictly forbidden to reverse charge the battery pack, and it is strictly forbidden to plug the positive and negative terminals of the battery pack directly into the power socket; It is strictly forbidden to transport or store the battery pack with conductive objects (such as hairpins, necklaces, etc.); Knocking, throwing, stepping, falling, dismantling, impacting the battery pack, etc. is strictly prohibited; It is strictly forbidden to directly weld the battery pack and pierce the battery pack with nails or other sharp objects; It is strictly forbidden to use it under strong static electricity and a strong magnetic field, otherwise it may damage the battery protection circuit; It is strictly forbidden to overload the battery pack; It is strictly forbidden to perform mechanical processing on the circuit board, which may damage the internal circuit and cause function failure; It is strictly forbidden to deform the product under force, which may cause damage to electronic components or parts of the circuit and make the product unstable; It is strictly forbidden to disassemble and assemble the shell to avoid unnecessary damage to you; It is strictly forbidden to overcharge or over-discharge the battery pack; When charging, please select a suitable special charger for the lithium-ion battery pack. After using the battery pack, please charge it within 12 hours. The battery pack has not been charged for more than 12 hours after use. Please test the battery before charging. If the battery pack leaks and liquid splashes into the eyes or skin, please do not rub it, rinse with water, and seek medical treatment immediately; Use dry powder fire extinguishers or sand to extinguish the fire in the battery pack accidentally; If the battery pack emits a peculiar smell, heat, discoloration, deformation, or any abnormality during use, storage, and charging, stop charging immediately. Power, stop using it, remove it from the device, and isolate it under safe conditions. Use insulating paper to wrap the electrodes at the terminals of the discarded battery pack to reduce potential safety hazards during later shelving. Reverse connection of the positive and negative poles of the charging port will burn the internal circuit board. Please pay attention to the positive and negative poles when connecting.
Daily Use And Maintenance Of Battery Pack
6.1 、Battery pack storage
The storage temperature is -20°C to 60°C. The performance of the battery pack is affected by temperature. The most intuitive performance is the change in the battery pack capacity, which is normal.
Avoid condensation caused by temperature changes during storage, otherwise, it will cause the battery or metal parts to rust.
6.2 、Check the battery pack before use After receiving the battery pack, first, check the packaging carefully for any abnormalities, and avoid impact during transportation. Check whether the battery pack shell and accessories are damaged, leaking, missing, etc. If there is any damage or missing, please contact our company. Check whether the charge and discharge terminals of the battery pack are correct, and measure whether the positive and negative poles are reversely connected and whether the voltage is within the normal operating voltage range of the device. If there is dirt or rust on the terminal, wipe it off with a dry cloth before use, otherwise, it may cause poor contact with the electrode terminal.
6.3 、Precautions for battery pack installation Clean the installation position of the battery pack to ensure that there is no dust, metal foreign objects, or other foreign objects. Smoke and fire are strictly prohibited during the installation process to avoid short circuits of the battery pack and prevent Prevent equipment damage or personal injury. The battery pack is in place and the battery pack is placed in the installation position. The battery pack should be installed in a well-ventilated, dry, and clean environment. The battery pack is installed in a place where it may be immersed in water, and the battery pack should be kept away from flammable and explosive materials during use and storage. Fasten the electrical wire terminals on the battery pack terminals. Do not use excessive force or exceed the specified torque when tightening, otherwise, the terminals may be caused damaged. After installation, check whether the terminals are fastened in place and whether there are any sundries on the surface of the battery pack. Use a dry cloth to clean the outer packaging of the battery pack. Use tools that generate static electricity to clean the outer packaging of the battery pack. Do not use organic solvents such as volatile engine oil. Otherwise, the outer packaging of the battery pack may be damaged or even the battery pack may be damaged. The outer packaging is cracked. Make sure that the positive (+) and negative (-) polarities of the terminals are connected correctly.
Otherwise, it may cause a fire or damage the battery pack and electrical appliances. Test operation of the equipment, and observe whether the equipment and battery pack are abnormal.
6.4 、Battery pack working requirements The charging current must not exceed the specified maximum charging current. Charging with a current higher than the specified current may affect the service life or internal The circuit is damaged and even dangerous. The discharge current must not exceed the specified maximum discharge current. Discharging with a current higher than the specified current may affect the service life or internal The circuit is damaged and even dangerous. When the battery pack is low, it should be charged in time, which is beneficial to prolong the life of the battery pack. If it is not charged in time, the battery pack will be left In a state of lack of power, which will affect the service life of the battery pack. The shallow charge and shallow discharge of lithium-ion battery packs are beneficial to improve the cycle life. It is recommended that users discharge to 80% of the nominal capacity each time.
6.5 、Daily maintenance of battery pack If the battery is not used for a long time, it may be in an over-discharged state due to its self-discharge characteristics. To prevent the occurrence of over-discharge, the battery should be charged and discharged regularly to maintain its voltage within a certain range (39–40). It is recommended that the battery pack be charged and discharged once within 2 months (the battery pack with communication the function is recommended to be charged and discharged at least once within 1 month, of which SOC/capacity calibration needs to be calibrated. The calibration method is to fully charge the battery pack with a charger and discharge to the battery Group protection. Do not use organic solvents to clean the battery pack casing. The battery pack is consumable and has a limited life span. When the battery pack capacity is lower than the usage requirement, please replace the battery pack in time to avoid loss due to insufficient capacity. To prevent safety problems caused by the failure of the overcharge protection function of the protection board, do not charge for a long time. The battery should be taken out after it is fully charged. Besides, you must use the original charger or the charger that comes with the battery when charging and operate and use it according to the instructions. Otherwise, the battery may be damaged or even dangerous. The shallow charge and shallow discharge of the battery can ensure the economic use of the battery pack. Overcharging and over-discharging may cause the battery pack to overheat, catch fire or function failure, shorten the life span, and even cause danger. The switch, power display board, and USB of the battery pack are wearing parts, and paid after-sales service can be provided. Lithium batteries at the end of their life should be recycled and disposed of following local laws.
6.6 、Common faults and solutions of the battery pack
| common error | Solution | |
| After the battery pack is fully charged, the voltage is too low or zero | If the battery pack is stored for a long time and not used, and it is not maintained following the regulations | Please test the battery pack voltage. If the battery the pack voltage value is less than 25V, it cannot be recharged and placed in isolation. Please consult the technicians of Shandong Tianshan New Energy Technology Co., Ltd. If the voltage ≥25V is normal, it can be charged in isolation, and regularly check whether it can be charged normally. |
| Battery pack open circuit
| Disassemble the battery pack, check whether the circuit is broken, check whether the solder joints fall off, whether the nickel belt is broken, and repair the damaged place according to the situation. | |
| The protection board does not work | First of all, confirm whether the cable of the protection board is in good contact with the protection board, and observe whether the solder joints fall off. If there is no abnormality in the above conditions, test the voltage between B+ and B- and the voltage between P+ and P-, if the two voltages are different Large, it means that the protection board is broken. The protection board needs to be tested in detail, and the protection board needs to be replaced if the test fails. | |
| The battery pack has been subjected to violent collisions, characterized by | This type of situation is generally not within the scope of maintenance. If maintenance needs to be done, determine whether there is a problem with |
| The outside of the battery the case is damaged or the battery has the smell of electrolyte. | the output circuit or the battery pack itself. First, disassemble the battery case and check whether the P+/C+ and P-/C- wires or solder joints of the battery pack are damaged. If there is damage, replace it. Then use the smell method to determine the smell of the battery pack. If there is an irritating electrolyte smell, it means that the battery pack has leaked. It is necessary to conduct a voltage test on each string of the battery pack. If one string of voltage is different from the other groups of voltages If it is too large and very low, you need to replace this string of batteries. | |
| Insufficient capacity | Charge and discharge the battery pack, generally 3-5 cycles. | |
| Unstable battery voltage or abnormal charging and discharging | Welding | Use the internal resistance tester to test the internal resistance of the battery pack. If it exceeds the specified value, there may be false welding inside the battery pack, and the battery pack needs to be disassembled and re-soldered. |
| The Protection board is abnormal | Replace the protective plate | |
| Poor contact with terminals or connectors | Replace terminal or connector |
Other Technical indicators
For matters not covered in this manual and other related parameters, if customers need them, please contact our sales or technical personnel. We will provide you with as much as possible, thank you for your understanding. You are welcome to visit our website or call the customer service hotline at any time to learn more about our products.
Disclaimer
Before using the product, please read this product manual carefully.
Shandong Tianshan New Energy Technology Co., Ltd. is not responsible for accidents caused by failure to operate following this manual. If the product is used incorrectly, the circuit is connected incorrectly, or the input power supply, load function parameters are not consistent with the performance parameters in the product manual, etc., it is improper to use, and the product, load, and peripheral connections are damaged by improper use (personal safety ), the company does not bear-related responsibilities.Shandong Tianshan New Energy Technology Co., Ltd. reserves the right to change the content of this manual. The content is subject to change without notice; the final interpretation right of this information belongs to the company.
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