Frequently Asked Questions
FAQ
Answers to help you better understand our products and services.
Customized Battery Pack
What is the minimum order quantity for customized batteries?
PKNERGY understands that products need to be verified and tested, so we set a smaller minimum order quantity. We do not have a minimum order quantity for warehouse models, and special customized batteries are determined by the difficulty of the project.
How does PKNERGY provide solutions?
You can contact us by email or online chat and tell us the battery type, capacity, shape and some details you care about. PKNERGY will provide you with a design plan for a battery prototype within 24 hours. You can communicate with our engineers for more details.
What customizations can PKNERGY make?
We support OEM and ODM services for any part of lithium batteries, such as capacity, size, appearance, connection terminals and logos.
What areas of customized batteries does PKNERGY involve?
PKNERGY is a manufacturer with 20 years of experience in producing lithium batteries, providing customized services such as lithium polymer batteries, LiFePO4 batteries, lithium-ion batteries, sodium-ion batteries, etc.
What is the price of a customized battery pack?
Depending on the complexity of the custom battery and the order quantity, PKNERGY will develop the most budget-friendly solution based on the customer’s needs.
Lithium polymer batteries
What lithium polymer batteries can PKNERGY make?
We can make regular 3.7V, 7.4V, 11.1V, 30mah~10000mah lithium polymer batteries. We also have rich experience in making ultra-thin and special lithium polymer batteries.
What are the advantages of lithium polymer batteries?
Lithium polymer batteries have the advantages of high energy density, light weight and small size. They can be designed into various shapes, suitable for a variety of applications, and have high safety, reducing the risk of leakage and explosion.
What is the shelf life of lithium polymer?
The shelf life of lithium polymer batteries is usually 2 to 3 years, depending on storage and use conditions.
How to store lithium polymer batteries?
Lithium polymer batteries should be stored in a cool, dry place, avoid high temperatures and direct sunlight, the most suitable storage temperature is around 15°C, and keep the power between 40%-60% to extend the service life.
18650 battery
What is the 18650 battery type?
An 18650 battery is a cylindrical lithium-ion rechargeable battery, measuring 18mm in diameter and 65mm in length. It is commonly used in electronics, power tools, and electric vehicles.
What is the voltage of a 18650 battery?
The nominal voltage of an 18650 battery is 3.6V or 3.7V, and the voltage can reach 4.2V when fully charged.
What is the service life of an 18650 battery?
The cycle life of an 18650 battery is usually between 300 and 500 times, depending on usage.
Why is the 18650 battery so popular?
The 18650 battery is very popular due to its high energy density, stability, durability, and wide use in consumer electronics, power tools, and electric vehicles.
Lithium iron phosphate battery
What is a lithium iron phosphate battery?
Lithium iron phosphate battery (LiFePO4) is a battery based on lithium-ion technology, with lithium iron phosphate as the positive electrode material, and is widely used in energy storage, electric vehicles and other fields.
What are the advantages of lithium iron phosphate battery?
It has the characteristics of high safety, long life, environmental protection, high temperature resistance, moderate energy density, and the number of cycles far exceeds other types of lithium batteries.
What is the price of lithium iron phosphate battery?
The price varies according to specifications and capacity. With the advancement and promotion of technology, lithium iron phosphate batteries are already at the lowest price in history.
What is the service life of lithium iron phosphate?
Under normal use conditions, the life of lithium iron phosphate batteries can reach 4000 to 7000 charge and discharge cycles. The lithium iron phosphate battery cells used by PKNERGY are all A-level LFP cells, which can be used stably for more than ten years.
Low temperature battery
What is a low temperature battery?
Low temperature batteries are batteries specially designed to maintain good performance in extremely cold environments and are suitable for use under low temperature conditions.
What are the characteristics of low temperature batteries?
Low temperature batteries have lower internal resistance, can provide stable output in cold environments, prevent over-discharge, and generally have strong resistance to low temperatures.
What are the effects of low temperature on lithium batteries?
Low temperature will reduce the chemical reaction rate of lithium batteries, resulting in reduced battery capacity, slower charging speed, and may even cause battery damage, so low temperature batteries are more suitable for low temperature environments.
What is the operating temperature of PKNERGY’s low temperature battery?
High temperature battery
What is the operating range of high temperature batteries?
The operating temperature range of high temperature batteries is usually -20°C to 60°C, but some specially designed high temperature batteries can operate at higher temperatures, such as 70°C or above.
What application scenarios are suitable for high temperature batteries?
High temperature batteries are suitable for high temperature environments, such as industrial equipment, electric vehicles, solar power generation systems, etc. These scenarios have high requirements for the stability of batteries at extreme temperatures.
What are the characteristics of high temperature batteries?
High temperature batteries have high temperature resistance, long life, low self-discharge rate, and can maintain stable electrochemical properties in high temperature environments, suitable for high temperature application scenarios
Ultra-thin batteries
How thin can PKNERGY make batteries?
PKNERGY ships more than 200,000 batteries worldwide each year, with thicknesses ranging from 0.4mm to 14mm and capacities ranging from 8mAh to 10000mAh+.
Will ultra-thin batteries affect performance?
The performance of ultra-thin batteries may be limited by their size, especially in terms of energy density and capacity. Due to their small size, they store less power, so the battery life is relatively short. However, ultra-thin batteries can still provide stable performance and are suitable for specific application scenarios.
What are the advantages of ultra-thin batteries?
The main advantages of ultra-thin batteries are that they are light and flexible, and can be adapted to space-constrained devices such as smartphones and wearable devices. They also have a thin and light design, which is more suitable for small and lightweight electronic products.
High discharge rate battery
What is a high discharge rate battery?
A high discharge rate battery is a battery that can provide a large current output in a short period of time, and is usually used in devices that require high power.
What are the advantages of high discharge rate?
High discharge rate batteries can quickly provide a large amount of current, suitable for devices that require instantaneous high power, such as power tools, drones, and racing models. In addition, they have better response speed and energy release efficiency.
What is the service life of high discharge rate batteries?
The service life of high discharge rate batteries depends on the use conditions and battery type, usually between 300 and 1000 charge and discharge cycles
Lithium-ion battery packs
What lithium-ion battery packs can Pknergy make?
PKNERGY can provide lithium-ion battery packs for commercial and industrial fields, and can design and produce from 2 to dozens of batteries in series or in parallel.
How to ensure the safe charging of lithium battery packs?
To ensure the safe charging of lithium battery packs, use a dedicated lithium battery charger, avoid overcharging, over-discharging, avoid high temperature environments, ensure that the battery has overcharge protection function, and use a battery pack with BMS to effectively prevent safety accidents.
Square battery
What is the capacity of square batteries?
PKNERGY provides 50AH~300AH square lithium batteries for customers to choose from, and customers can purchase according to their own needs.
What are the advantages of square cells?
The advantages of square cells include higher energy density, large available internal space, stable structure, easy design and customization, and better suitability for large-scale energy storage devices and electric vehicles.
What is the difference between square and cylindrical batteries?
Square batteries have a more compact structure and high energy density, which are suitable for applications with limited space; cylindrical batteries have good heat dissipation and mature manufacturing processes, which are suitable for standardized production.
Sodium-ion batteries
What are sodium-ion batteries?
A sodium-ion battery is a battery that uses sodium ions as charge carriers, similar to lithium-ion batteries, but uses more abundant sodium elements. It is seen as an alternative to lithium-ion batteries, especially in terms of material cost and resource abundance.
What is the difference between sodium-ion batteries and lithium-ion batteries?
The main differences between sodium-ion batteries and lithium-ion batteries are the positive electrode materials and electrolytes. Sodium-ion batteries are lower in cost and more abundant in resources, but have slightly lower energy density than lithium-ion batteries. In addition, sodium-ion batteries perform better than lithium batteries under low temperature conditions.
What capacity sodium-ion batteries does PKNERGY have?
PKNERGY provides 50AH~300AH sodium-ion batteries for customers to choose from, and customers can purchase according to their own needs.
Samples
Does PKNERGY provide samples?
Yes, for customized battery packs, PKNERGY can provide battery prototypes for performance testing.
How long does it take to make samples?
Sample production is usually completed within 7 days, and the specific time depends on the complexity of the sample.
Will PKNERGY leak samples?
PKNERGY has perfect confidentiality measures. All participating employees will sign a confidentiality agreement, and we will also sign relevant terms with our partners.
How to get samples?
When our design plan is recognized and approved by the customer, we will produce samples and quickly deliver them to the address specified by the customer through our logistics.
Payment
What payment methods does PKNERGY accept?
We accept payment by bank transfer, PAYPAL, ALIPAY and other methods.
What is the payment cycle for PKNERGY lithium battery orders?
100% payment before delivery; Received 30% deposit arrangements for production, production completed to pay 70% of the balance of delivery.
Certification
What certifications does PKNERGY lithium battery have?
All batteries comply with UL, CE, KC, CB, PSE, RoHS, UN38.3, IEC62133 and MSDS!
How to certify a custom battery pack?
We have provided customized batteries to partners in more than 100 countries and regions around the world, and are very familiar with the certification process. We will do our best to assist customers in obtaining the required certification.
About PKNERGY
What services can PKNERGY provide?
PKNERGY provides common models of battery cells for sale and customized battery pack production services. It is a comprehensive lithium battery manufacturer.
Where is PKNERGY headquartered?
PKNERGY is headquartered in Shenzhen, one of the most prosperous cities in China.
History of PKNERGY?
PKNERGY was established in xxxx and is a wholly-owned subsidiary of PKCELL. PKCELL has been recognized by the world for providing high-quality carbon batteries and alkaline batteries in the past.
Logistics
What transportation methods does PKNERGY provide?
We have 20 years of trading experience and work closely with logistics providers such as DHL. We can transport by ship, truck or air.
Where can we ship to?
Our shipping location is in China, where logistics are well developed, and we can ship to all parts of the world.
How long does it take to ship?
We usually use sea transportation, which usually takes 45 to 60 days.
Production
What is the production scale of PKNERGY?
PKNERGY has an assembly line factory of more than 10,000 square meters, equipped with hundreds of employees, and can produce hundreds of thousands of lithium batteries per month.
How long is the production cycle of lithium batteries?
Usually mass production can be completed in 20 days.
Can I come to verify?
Yes, we welcome our customers to verify with us through language, video or visit.
After-sales
What is the after-sales period?
Depending on the product category, we provide a three-year warranty for lithium-ion batteries and lithium polymer batteries, and a five-year warranty for lithium iron phosphate batteries.
How to apply for after-sales service?
For each project, we have a one-to-one account manager to work with you to promote the project. If you encounter any problems with the battery, you can communicate directly with the project manager, or contact us through any channel, and we will quickly activate our after-sales team to solve your problems.