Introduction
The 2600mAh lithium ion battery is one of the most widely used capacities in portable electronics. From flashlights and power banks to medical devices and industrial equipment, this capacity offers an ideal balance between runtime and physical size.
At A&S Power, we manufacture custom lithium batteries in various capacities and configurations. This guide covers everything you need to know about 2600mAh lithium ion batteries – from voltage options to common applications.
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] .
Why 2600mAh is a Popular Capacity
The 2600mAh capacity became a standard in the lithium battery industry because it balances three key factors:
1. Runtime
2600mAh provides 2-3 times the capacity of standard AA alkaline batteries, making it suitable for devices that need extended operation.
2. Size
Batteries in this capacity range are compact enough for portable devices while still delivering meaningful runtime.
3. Versatility
2600mAh cells work in both single-cell and multi-cell configurations, making them adaptable to a wide range of applications.
This capacity remains one of the most common choices for 18650 cells, which is why it’s so widely recognized.
Voltage Options – Which One Do You Need?
2600mAh lithium ion batteries are available in several voltage configurations:
| Voltage | Configuration | Common Applications |
|---|---|---|
| 3.6V / 3.7V | Single cell (1S) | Flashlights, portable speakers, power banks, single-cell devices |
| 7.4V | Two cells in series (2S) | Small robots, portable fans, higher-voltage devices |
| 11.1V | Three cells in series (3S) | Drones, RC cars, power tools, medical equipment |
Which one is right for you?
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If your device runs on a single battery, choose 3.6V or 3.7V
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If your device needs more power, choose 7.4V or 11.1V – but always check your device specifications first
Browse our full range of 2600mAh 18650 battery products here.
Browse our 2600mAh lithium polymer batteries here.
| Industry | Applications |
|---|---|
| Consumer Electronics | Flashlights, portable speakers, power banks, wireless keyboards |
| Medical Devices | Portable monitors, diagnostic equipment, drug delivery systems |
| Industrial | Handheld scanners, test equipment, portable tools |
| E-Mobility | E-bikes, electric scooters (in multi-cell packs) |
| DIY Projects | Custom electronics, robotics, hobbyist builds |
The 2600mAh capacity is versatile enough to power devices ranging from simple flashlights to complex medical equipment.
Browse our full collection of 2600mAh batteries here.
Key Specifications to Look For
| Specification | Typical Range | Why It Matters |
|---|---|---|
| Capacity | 2600mAh | Provides up to 2-3× runtime compared to lower-capacity options |
| Nominal Voltage | 3.6V – 3.7V | Must match your device‘s input voltage requirement |
| Max Continuous Discharge | 1C – 3C | Determines the maximum current the battery can safely deliver |
| Cycle Life | 300-500 cycles | Affects battery lifespan and replacement frequency |
| Operating Temperature | -20°C to 60°C | Impacts performance in different environments |
| Certifications | UL, CE, RoHS, UN38.3 | Required for safety and international shipping |
How to Choose the Right 2600mAh Battery for Your Project
Step 1: Determine your voltage requirement
Check your device specifications – this will tell you whether you need a single cell (3.6V-3.7V) or a multi-cell pack (7.4V, 11.1V, etc.).
Step 2: Choose the battery shape
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18650 cylindrical cells: Durable, standard size, easy to replace
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Lithium polymer pouch cells: Compact, flexible shape, lightweight
Step 3: Check your space constraints
18650 cells have fixed dimensions (18mm × 65mm). Polymer pouch cells can be customized to fit tighter spaces.
Step 4: Consider protection features
Look for built-in PCM (Protection Circuit Module) that provides overcharge, over-discharge, and short-circuit protection.
18650 vs Polymer – Which 2600mAh Battery is Better?
| Feature | 18650 Cylindrical | Lithium Polymer Pouch |
|---|---|---|
| Shape | Fixed cylinder (18×65mm) | Flexible, customizable |
| Weight | Heavier | Lighter |
| Durability | Robust metal casing | Soft pouch – handle with care |
| Space efficiency | Less efficient (round shape) | Very efficient (flat shape) |
| Cost | Lower | Higher |
| Best for | Standard devices | Compact, custom designs |
Both options deliver the same 2600mAh capacity – the right choice depends on your device‘s space and design requirements.
Custom 2600mAh Battery Solutions from A&S Power
At A&S Power, we offer 2600mAh lithium batteries in both 18650 cylindrical and polymer pouch formats. Whether you need a standard cell or a custom multi-cell pack, we deliver solutions tailored to your specifications.
✅ 2600mAh 18650 cells – 3.6V, 3.7V, 7.4V, and 11.1V options
✅ 2600mAh polymer pouch cells – 3.7V with custom dimensions
✅ OEM labeling and packaging
✅ UL, CE, RoHS, and UN38.3 certification
📄 Request a Technical Datasheet – Contact Us
📞 Speak with Our Engineering Team – Get In Touch
🔗 Browse Our Custom Battery Solutions – View Products
Frequently Asked Questions
1. How long does a 2600mAh battery last?
Runtime depends on the device‘s power consumption. For a device drawing 500mA, a 2600mAh battery provides approximately 5 hours of use. For a device drawing 100mA, it provides approximately 26 hours.
2. Can I use a 2600mAh battery in any device?
Only if the device is designed for lithium ion batteries and the voltage matches. Check your device’s voltage requirements before purchasing.
3. What is the difference between 3.6V and 3.7V 2600mAh batteries?
The difference is minimal – both are compatible in most applications. 3.6V cells are typically used in devices requiring slightly lower voltage, while 3.7V is the more common standard for consumer devices.
4. Can 2600mAh batteries be shipped internationally?
Yes, if they are UN38.3 certified. We provide full shipping documentation with every order.
5. How should I store 2600mAh batteries?
Store at 40-60% charge in a cool, dry place (15°C – 25°C). Check voltage every 1-2 months if storing long-term.
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