Hot selling/New product recommendation
Vacuum cleaner battery/charger
Frequently asked questions
ask:What are the main battery cells in your product?
answer:We have imported and domestic battery cells, and imported batteries mainly use Sony, Samsung, and LG brands of imported batteries as our power tool batteries, which have 100% high quality
ask:Can you accept customized products?Can I do a dropshipping service?
answer:We support sample customization and can customize the capacity and brand logo that customers need. At the same time, all of our products support ordering one piece for shipping
ask:What brand products do you mainly produce, which brand e-commerce do you supply, and which platforms do your customers mainly work on?
-answer:We mainly produce Dyson,Replace batteries with brands such as Liyoubi, Bosch, Miwoqi, and Dewei. The customer base isAmazon,EBay, AliExpress,LAZADA and other platforms
Ask:What is the monthly production capacity of your factory?What is the scale of the factory?
Answer:Our factory is located in Dalang Town, Dongguan City, with a monthly output of 80000 batteries and a factory area of over 2300 square meters. We welcome customers to visit our factory for on-site inspection
ask:What is the usual delivery time and delivery time for you?
answer:At 15 pm that day:Orders placed before 00 can be shipped on the same day. Generally, within the province, they can be delivered on the second day
ask:Do you have an after-sales guarantee for your products?How long does the warranty last?
answer:All of our products have undergone relevant quality testing and certification, and can be exchanged within 15 days with a 13 month warranty
ask:What certifications have your factory products passed? Do you have any
answer:Our products have certifications such as FCC, CE, ROHS, quality inspection reports, MSDS, and sea freight inspection reports
------------------------------------------------------------------------------------------------------------------------------------------------
Daily maintenance of lithium batteries:
1. Newly purchased lithium batteries always have a small amount of power, so users can use them directly when they receive the battery, use up the remaining power, and then charge it. After this process, 2~Three normal uses can fully activate the activity of lithium batteries. Here is a special reminder:Don't misunderstand salespeople or rumors online, new lithium batteries need to be activated for up to 12 hours when used for the first time
2. Lithium batteries do not have a memory effect and can be charged as needed. However, it should be noted that lithium batteries cannot be over discharged, as over discharge can cause irreversible capacity loss. When the machine reminds you of a low battery level, start charging immediately
3. In daily use, freshly charged lithium batteries should be left unused for half an hour until their charging performance is stable, otherwise it will affect the battery's performance
4. When not using the instrument, be sure to remove the battery and store it in a dry and cool place
5. Pay attention to the usage environment of lithium batteries:The charging temperature of lithium batteries is between 0 ℃ and 45 ℃, and the discharge temperature of lithium batteries is-20 ℃~60 ℃
6. Do not mix the battery with metal objects to prevent them from touching the positive and negative poles of the battery, causing a short circuit, damaging the battery, and even posing a danger
7. Do not tap, puncture, step on, modify, or expose the battery to sunlight. Do not place the battery in microwave, high voltage, or other environments
8. Use a legitimate matching lithium battery charger to charge the battery, and do not use inferior or other types of battery chargers to charge the lithium battery
How to store lithium batteries without long-term use
1. Lithium batteries should be charged to 50 when not in use for a long time%~80%Remove the battery from the instrument and store it in a dry and cool environment. Charge the battery every 3 months to avoid prolonged storage and irreversible capacity loss caused by self discharge
2. The self discharge of lithium batteries is affected by environmental temperature and humidity. High temperature and humidity can accelerate the self discharge of the battery. It is recommended to store the battery in a dry environment between 0 ℃ and 20 ℃
-----------------------------------------------------------------------------------------------------------------------------------------
The production process steps of batteries
Polar plate weighing
1. Firstly, the internal plates of each battery need to be weighed and matched. The capacity of each cluster should be equal, otherwise the group with smaller capacity will be fully charged in advance due to its small capacity. However, the group with larger capacity has not yet been fully charged, and the terminal voltage of the battery is low. If the total voltage is not yet fully charged, the group with smaller capacity will continue to charge, resulting in the formation of the group with smaller capacity. If the group with smaller capacity is discharged during the battery discharge, the early charge will be lost, and the terminal voltage of other batteries is high. The total voltage of the battery does not have the termination protection voltage for electric power assistance, and the discharge will continue, causing the battery to be discharged
Overcharging and discharging of batteries, as well as untimely charging, can affect the service life of batteries. However, the smaller group of batteries further decreases, and the decrease in battery capacity further leads to overcharging and discharging of that group. This cycle causes the battery capacity to quickly decrease and become scrapped
2. Treatment of the electrode plate before weighing
Before weighing the electrode plate, it is necessary to remove any excess front edges, burrs, and active substances during the application of paste. If not clean, it may cause a short circuit in the battery electrode plate, which is self discharge. It is necessary to use an electrode plate brush to brush the excess impurities on the electrode plate with earphones to facilitate welding, in order to prevent it from being damaged. If the electrode plate has unevenness, severe powder peeling, or holes, they should be selected
3. How to weigh the electrode plate
When weighing and grouping the plates, it is necessary to first weigh a portion of the plates and arrange them on the workbench in order of weight, compare and mark the weight. Then, for the plates that have not been weighed, weigh each plate on the weighing instrument, and place them together with the plates placed on the workbench according to the weight of the plates. This saves some trouble(The smaller the weight difference between positive plates or each group, the better. The error of 10-14 AH should not exceed 1 gram per group, and the error of 17-20 AH should not exceed 2 grams per group
Package partition
1. After weighing, the plates should be grouped according to the regulations. After grouping, the plates should be wrapped. The material of the partition is generally microporous rubber and fiberglass. When packaging, attention should be paid to the cleanliness of the partition. The plates should be placed in the middle of the partition. If the positions of the plates are aligned, they should be placed in the plate box
Kodi partition
2. Double pack positive plates, use very thin partition plates to hold the positive plate together, do not wrap it, this can avoid short circuits caused by defects in single partition plates. Single pack plates, use partitions to package only the positive plate, do not wrap the negative plate, and place it in the packaging box, which is convenient and simple
Selection and Processing of Lead Parts
1. Lead parts have lead welding rods and poles, which are cast using specialized molds. Generally, the temperature is around 450 ℃. If the temperature is too high, lead oxidation will be severe, and lead parts will cause cracks due to severe shrinkage. It is not allowed to use iron tools to strike the mold. The made lead parts should try to ensure that there are no sharp edges around them, and if there are any, they should be trimmed
1. Cluster welding, which involves soldering the positive and negative electrodes together with lead to form a cluster, and using oxygen as a tool to connect the pole and busbar together-Acetylene
2. Place the packaged electrode plate inside the cluster box, then insert the electrode plate inside the cluster box into the comb plate. First, insert the negative electrode and then the positive electrode, so that the electrode ear is fully inserted into the comb plate. If there is any missing part, manually organize it, and then place the bar between the positive and negative electrode ears, bridge pillars, and electrode pillars
3. Open acetylene and oxygen, ignite and adjust to the appropriate size. Move the welding gun and electrode to the position of the pole ear, then melt the lead bar and pole ear. After the busbar is basically welded, weld the pole pole and the busbar together. If there are impurities such as lead ash during welding, it will be found out. Welding the pole pole and busbar is a key process in the production process, and it is necessary to ensure that the welding is firm without false welding or false welding. At this time, impurities should be removed while welding, and finally fill the busbar
4. After welding the busbar, check for any defects before entering the slot installation process. Generally, the cluster with terminals should be installed first, and then other clusters should be installed, with the positive and negative poles arranged as follows:+-+-+-+-+-+-Series connection, do not install the wrong polarity
When installing the slot on the electrode plate, it is necessary to install it to the bottom, and then check whether the bridge column is normal. If there is any displacement, handle it manually. After trial installation, check whether the upper cover can cover the basic cluster lower slot
5. How to check the polarity group? First, let's measure the battery to see if there is a short circuit. If the voltage measured is zero or close to zero, it indicates that the cluster has found the location of the short circuit for repair. Check if the positive and negative terminals of the multimeter are connected properly without a short circuit, and if there is any, it indicates that the polarity is reversed. Then, reinstall it into the battery slot
6. If there is no fault detected by the electrode plate, enter the bridge welding. Pole group welding is a key item. Use bridge welding to clamp the column, and oxygen welding to weld the bridge column. During welding, ensure that the flame does not burn to the battery shell, and ensure that there is no fault. The pole column will detach from the cluster and the cover can be closed smoothly. Seal the battery cover and use it in combination with curing agent:Comparison of the ratio of 1. The prepared adhesive should be used in a timely manner to avoid prolonged solidification. The solidification of the adhesive is closely related to temperature, and the higher the temperature, the faster it solidifies. Therefore, it should be used as soon as possible. Additionally, the heating equipment should be used for sealing
7. After the battery cover is completed, pole welding should be carried out to check whether the lead out pole is in the middle position of the lead out hole. If it is not, it should be corrected. The pole mold should be placed on the lead out pole and then melted with oxygen welding. There is also a welding method, where the terminal is placed on the lead out pole and placed in the correct position, melted with a soldering iron, and the terminal and pole are welded together. Attention should be paid during welding
Electrolyte configuration
It is prepared with pure water and concentrated sulfuric acid, and the density of the electrolyte for automotive starter batteries is
1.280 ± 0.005g/Cm3((25 ℃)
② The container for preparing electrolyte must be acid and temperature resistant glazed ceramic, glass cylinder, plastic tank or lead lined wooden tank. When preparing, the staff must wear protective equipment;
Wash the utensils thoroughly before preparation and rinse with pure water;
When preparing, the required pure water should be first placed in a container, and then concentrated sulfuric acid should be slowly injected into the pure water while stirring continuously. It is strictly prohibited to inject water into sulfuric acid to avoid splashing and burning
The conversion formula is d25=Dt+0.0007(T-25)
D25:25 ℃ electrolyte concentration dt:Electrolyte concentration at temperature t
0.0007:T:Measured electrolyte concentration
The main components of the electrolyte are distilled water and sulfuric acid. When preparing, the container must be acid resistant and clean
2. Staff should have a safety awareness and wear acid resistant gloves and clothes while working. If sulfuric acid splashes onto the skin during operation, it should be washed repeatedly with clean water. When preparing, pour distilled water into a clean container first, then slowly introduce it, and use acid resistant tools to stir. If the temperature is too high, stop adding acid to prevent the temperature from being too high and the acidity from splashing out. Mix 1.1 at a temperature of 25 ℃:28 is sufficient. It is strictly prohibited to pour water into the acid during configuration
3. The amount of acid added can only be calculated based on the amount of acid added, the capacity of the battery case, the acid density added, and the grouping loss during charging and discharging, as acid is no longer extracted outward after charging and discharging
Inject electrolyte
Unscrew the exhaust plug and make sure to penetrate the ventilation hole on the plug. There is a sealing gasket and paper under the plug, which needs to be removed after acid injection;
The electrolyte temperature must be cooled to below 30 ℃ and filled into the battery;
Inject the prepared electrolyte into each cell, and mark the liquid level and outer shell of the plastic shell battery"Max"Flush, the liquid level of the rubber tank battery should be 10 times higher than the partition board-15mm;
Tighten the exhaust plug to prevent acid leakage
+'&media=https%3A%2F%2Fcbu01.alicdn.com%2Fimg%2Fibank%2F12876059882_345941986.jpg&description=Replaces+Maki+BL1021B+10.8V-12V+Mutian+lithium+cordless+power+tool+battery+factory+direct+sale')){kind=link}