10 Things to Consider When Buying custom lipo battery pack

05 Jun.,2025

 

Decoding LiPo Batteries: A Comprehensive Guide for Bulk Buyers ...

LiPo (Lithium Polymer) batteries are widely used in modern electronic devices. Their lightweight, high energy density, and flexibility make them ideal for many applications. Industries such as consumer electronics, drones, power tools, and industrial automation rely on these batteries for efficient power solutions.For bulk buyers, understanding the key characteristics, selection criteria, and industry trends is crucial. This guide aims to provide a detailed overview of LiPo batteries, helping businesses make informed purchasing decisions.

Overview of LiPo Batteries

What is a LiPo Battery?

A Li-polymer battery is a type of rechargeable lithium-ion battery that uses a polymer electrolyte instead of a liquid one. This design enhances flexibility, safety, and energy efficiency compared to traditional lithium-ion batteries.

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Key Components of a LiPo Battery

  1. Electrodes – The anode and cathode store and release energy.
  2. Electrolyte – A polymer-based medium that allows ion flow.
  3. Packaging Material – A flexible outer layer that provides protection and shape adaptability.

Core Features of LiPo Batteries

  • High Energy Density – Stores more power in a compact space.
  • Lightweight Design – Essential for portable and aerial applications.
  • Flexible Shape – Can be customized for various form factors.
  • Multiple Configurations – Available in different voltages and capacities.

Key Performance Indicators of LiPo Batteries

Voltage (V)

LiPo batteries have a nominal voltage of 3.7V per cell. Multiple cells can be connected in series to achieve higher voltages, such as 7.4V (2S), 11.1V (3S), 14.8V (4S), etc. The choice of voltage depends on the power requirements of the application.

Capacity (mAh)

The capacity of a LiPo battery, measured in milliamp-hours (mAh), determines how much energy it can store. Higher capacity batteries provide longer operating times. Buyers should select the appropriate capacity based on their device’s energy consumption.

Discharge Rate (C-Rate)

The C-rate indicates how quickly a LiPo battery can release energy. A higher C-rate is essential for power-hungry applications like drones and RC cars, where rapid bursts of power are required.

Charging and Cycle Life

The number of charge cycles a LiPo battery can endure before degrading is an important factor. Proper charging practices, including using balance chargers and avoiding overcharging, can extend battery life.

Safety Considerations

LiPo batteries require built-in safety mechanisms to prevent overcharging, over-discharging, and short circuits. Buyers should look for batteries with protective circuitry and high-quality materials.

Factors to Consider When Buying LiPo Batteries in Bulk

Supply Chain Stability

A reliable manufacturer ensures consistent quality and timely deliveries. Buyers should assess suppliers based on production capabilities, delivery timelines, and quality control processes.

Quality and Certifications

LiPo batteries must meet international safety and performance standards. Essential certifications include:

  • UL (Underwriters Laboratories)
  • CE (Conformité Européenne)
  • RoHS (Restriction of Hazardous Substances)
  • UN38.3 (Transportation Safety Compliance)

Customization Requirements

Depending on the application, buyers may need specific dimensions, voltage ratings, or connector types. Some manufacturers offer customization services to meet these needs.

Cost and Pricing Factors

While cost-effectiveness is important, buyers should balance price with quality. Low-cost batteries with poor quality can lead to safety risks and shorter lifespans.

Environmental and Regulatory Compliance

Different countries have regulations on battery disposal, recycling, and transportation. Buyers should ensure compliance with local laws to avoid legal issues.

Applications of LiPo Batteries in Different Industries

Drones and RC Models

LiPo batteries provide high discharge rates and lightweight power solutions, making them ideal for drones, radio-controlled (RC) cars, and aircraft.

Consumer Electronics

Smartphones, tablets, smartwatches, and wireless earbuds use LiPo batteries for their slim design and long battery life.

Power Tools

Cordless drills, saws, and other power tools benefit from high-capacity LiPo batteries that deliver reliable power.

Medical Equipment

Portable medical devices such as defibrillators and patient monitoring systems require safe and long-lasting LiPo batteries.

Robotics and Industrial Automation

LiPo batteries enable industrial robots and automation systems to operate efficiently with minimal downtime.

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HIMAX Electronics: Your Trusted LiPo Battery Supplier

About HIMAX Electronics

HIMAX Electronics is a leading manufacturer of high-performance Li-Polymer Batteries. With a focus on innovation and quality, we provide power solutions for various industries worldwide.

Why Choose HIMAX LiPo Batteries?

  • Superior Safety – Our batteries comply with international safety certifications.
  • High Performance – We offer customizable voltage, capacity, and discharge rates.
  • Flexible Customization – Tailored solutions for unique industrial needs.
  • Reliable Supply Chain – Consistent product availability and on-time delivery.

Conclusion

LiPo batteries play a crucial role in modern electronics, offering high energy density, lightweight design, and flexible configurations. For bulk buyers, understanding key performance indicators, supplier reliability, and industry applications is essential.

10 Precautions for Lithium Polymer Battery Customization - Grepow

If the customized information provided by the customized lithium polymer battery is incomplete, it will not only affect the work efficiency but also cause misunderstanding of poor working ability. More importantly, it may cause a large safety hazard to the product, so GREPOW is for the lithium polymer battery. Customization summarizes a few experiences for battery customers to refer to, whether it is to do project product design or custom battery solution report will be very helpful.

1. The width dimension of the lithium polymer battery flange

Because the polymer battery generally adopts single-folding or double-folding technology, the battery edge will be loosened when the battery is folded. For example, the original folding edge is 20mm wide, and the flange will be loosened after the folding. 20.3mm or so, don't worry about it at this time, this is also the time to test the product designer, remember to leave more space or leave battery space.

2. The thickness of the finished lithium-polymer battery

Since the polymer battery itself has expansion property, all the soft pack batteries will expand after being charged and discharged for a certain number of times, so the thickness expansion ratio should be considered in the design of the product, and the force and force card of the caliper card battery thickness is used, and the thickness is There will be changes, do not believe that you can find a lithium polymer battery caliper to test the thickness, at least 10 wire thickness deviation.

3. Battery material system

Most of the digital products use ternary battery material systems, such as mobile phones, tablet computers, Bluetooth headsets, etc., while the high-capacity polymer batteries used in vehicles use more lithium iron phosphate systems; the ternary materials are normally 3.7V. The voltage, while the iron-lithium material is 3.2V.

4. The capacity of the lithium polymer battery

A certain capacity can be achieved in the corresponding battery space, but not 100% of this battery capacity segment, so the custom battery manufacturer will give the upper and lower limits of the battery capacity; for example, when evaluating the manufacturer The design capacity given is 100mAh, and 95mAh will appear in the actual production process. These are normal, because the design will have positive and negative tolerances, so don't bite the word to lift it.

5. lithium polymer battery voltage system

High voltage and common voltage must be distinguished. For example, when using a high voltage 4.35V (full charge) voltage system, it must be clearly stated in the specification of the lithium polymer battery, and the ordinary voltage is 4.2V (when fully charged). If you do not explain clearly that we will generally customize the 4.2V voltage system, it is recommended that you understand the power supply scheme of your product chip to see what voltage system is suitable.

6. Battery operating current rate

For example, some Bluetooth headset batteries have a relatively small operating current. Generally, 0.2C discharge is enough; while the RC battery operating current is generally about 10A. For example, a 600mAh battery for a model airplane can continue to be discharged at 20C. Use on, so be sure to know the working current when customizing the battery, it is best to continue how many A, how much A current to work instantly.

7. Battery pole ear

The lithium-polymer battery should pay attention to the overall size of the battery, especially the positive electrode ear size of the polymer battery, because the positive electrode of the soft pack battery is particularly fragile, and it is easy to break when folded several times. Generally, the positive electrode is laser-transferred to nickel, when in use. According to experience, the number of bending of the positive ear should not exceed 3 times. If the battery capacity is large enough, a thick and wide lithium polymer battery customized solution can be used to solve the problem of easy breakage of the ear.

8. Polymer battery output

Generally, the output of small polymer batteries is mostly wire, and some of them are output terminal wires of the battery, which involves the corresponding types of terminals, such as JST terminal, PH terminal, 1.25 terminal, 2.0 terminal, 2.54 terminal, 3.96 terminal, etc. Etc., the other terminals are also positive and reverse. If the wrong direction is connected, the product will not work and even burn out the product. If you are not sure, you can provide the plug-in socket and battery power input circuit to the other party, or face-to-face communication. Basically, it can ensure that the lithium polymer battery can be customized in one time without error.

9. Battery pack finished product

Most of the PACK finished batteries are equipped with protective plates, wires, plug wires, casings, etc., and some special ones may need to add FPC soft cable, such as Apple mobile batteries, some need to add plastic shell, such as walkie-talkie battery; Others need to add communication protocols, such as battery for vehicles; so these items must be clear in the process of customizing the lithium polymer battery, involving high current, shell and shell color, silkscreen, communication protocol, etc. The content is more detailed, the better, the more detailed the more can reduce the mistakes.

10. The outer shell of the polymer battery

Do not deliberately scratch the surface of the battery, because the surface of the lithium polymer battery is very fragile and it is easy to scratch if accidentally. The quality of the customer should not scratch the surface of the battery with the fingernails during the incoming inspection. We should put an end to these unnoticed behaviors. Please support all manufacturers of lithium polymer battery custom, please communicate more details, more inclusive, more cooperation. I hope this article can help customers with customized battery. Of course, these can be extended to other products. I hope that the 10 factors of lithium polymer battery customization will be inspiring. 

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