Introduction
If you‘ve ever used a drone, an RC car, a portable power bank, or even a modern smartphone, you’ve used a lipo battery (short for lithium polymer battery). Lipo batteries are one of the most popular rechargeable battery types on the market today – and for good reason.
At A&S Power, we manufacture custom lipo batteries for OEM buyers worldwide. But before you start thinking about sourcing, let‘s cover the basics first.
For a complete overview of our custom battery capabilities, check out our full guide: Custom Lithium Polymer Battery – OEM/ODM Solutions for IoT, Wearables & Medical Devices .
What is a Lipo Battery?
A lipo battery (lithium polymer battery) is a rechargeable power source that uses a gel-like polymer electrolyte instead of the liquid electrolyte found in traditional lithium-ion batteries. This design allows for:
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Flexible shapes and sizes – can be as thin as 3.0mm
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Lightweight construction – no heavy metal casing
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High energy density – more power in less space
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Customizable form factors – fits any device design
Common Applications of Lipo Batteries
Lipo batteries are everywhere. Here are some of the most common uses:
| Application | Why Lipo Battery |
|---|---|
| Drones and UAVs | Lightweight, high discharge rate for flight |
| RC Cars and Boats | High power output, compact size |
| Smartphones and Tablets | Thin, fits into slim designs |
| Wearable Devices | Flexible shape, low profile |
| Medical Devices | Reliable, safe, long cycle life |
| Portable Speakers | Extended playtime, compact size |
| IoT Sensors | Small footprint, low self-discharge |
Advantages of Lipo Batteries
Why choose lipo batteries over other types?
| Feature | Benefit |
|---|---|
| High energy density | More power in a smaller, lighter package |
| Custom shapes | Can be manufactured to fit any device design |
| Low self-discharge | Retains charge when not in use |
| No memory effect | Can be recharged anytime without performance loss |
| Wide operating temperature | Performs well in various environments |
| Built-in protection options | PCM/BMS for overcharge, over-discharge, short-circuit protection |
Lipo Battery Safety Tips
While lipo batteries are generally safe, following proper safety practices is important to maximize lifespan and prevent issues:
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Use the correct charger – Always use a charger specifically designed for lipo batteries
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Avoid overcharging – Disconnect when fully charged
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Never puncture or crush – Damaged cells can cause short circuits
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Store properly – Keep at 40-60% charge in a cool, dry place
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Inspect regularly – If you notice any swelling, stop using immediately
Lipo Battery vs Li-Ion Battery – What’s the Difference?
| Feature | Lipo Battery | Li-Ion Battery |
|---|---|---|
| Electrolyte | Gel-like polymer | Liquid |
| Shape | Flexible, customizable | Rigid cylindrical or prismatic |
| Weight | Lighter | Heavier |
| Energy Density | High | Comparable |
| Safety | Less prone to leakage | Can vent if punctured |
| Cost | Higher | Lower |
| Best for | Compact, custom designs | Standard applications |
Frequently Asked Questions
1. How long does a lipo battery last?
Under normal use, a lipo battery typically lasts 300-500 charge cycles, which translates to 3-5 years of regular use.
2. How do I know if my lipo battery is bad?
Signs of a bad lipo battery include swelling, overheating during use, significantly reduced runtime, or inability to hold a charge.
3. Can lipo batteries be recycled?
Yes. Lipo batteries should be recycled at designated battery recycling centers. Do not dispose of them in regular trash.
4. What is the difference between 3.7V and 7.4V lipo batteries?
A 3.7V lipo battery is a single-cell configuration, while a 7.4V lipo battery is a two-cell (2S) configuration. Higher voltage provides more power output.
5. Are lipo batteries safe?
Yes, when used with proper chargers and safety precautions. Built-in PCM/BMS protection circuits add an extra layer of safety.
Custom Lipo Battery Solutions from A&S Power
At A&S Power, we specialize in custom lipo battery manufacturing for OEM buyers. Whether you need a standard cell for a portable device or a fully customized battery pack for a medical or IoT application, we deliver solutions tailored to your specifications.
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Dongguan A&S Power Technology Co., Limited.
Building 1, No. 2, Keji 9th Road, Songshan Lake, Dongguan, Guangdong, China
📞 +86 137 1383 1631 | ✉ info@enerbe.net