Blog
Explore the Power of Lithium Innovation
Stay updated with the latest trends, technologies, and application insights in the world of lithium battery solutions
Search the whole station
Explore the Power of Lithium Innovation
Stay updated with the latest trends, technologies, and application insights in the world of lithium battery solutions
The 18650-2S1P battery pack consists of two 18650 cylindrical lithium-ion cells connected in series (2S) with one parallel group (1P). It delivers a total voltage of 7.2V and a capacity of 2000mAh, combining high voltage output with a compact, lightweight design. This makes it ideal for applications where space is limited but stable voltage is required.

Here are the typical technical specifications of this battery model:
| Category | Parameter Name | Value |
|---|---|---|
| Basic | Configuration | 2S1P |
| Rated Voltage | 7.4V | |
| Typical Capacities | 2000mAh, 2200mAh, 2500mAh… | |
| Dimensions | Approx. 21mm × 37mm × 68mm | |
| Internal Resistance | ≤250mΩ (down to 53mΩ optional) | |
| Weight | ~90–100g | |
| Charge/Discharge | Max Charge Voltage | 8.4V |
| Standard Charge Current | 0.2C | |
| Max Charge Current | 0.5C–1C (up to 2.5A optional) | |
| Continuous Discharge Current | 0.2C | |
| Max Continuous Discharge | 1C–2C | |
| Cut-off Voltage | Typically 5–5.6V | |
| Temperature Range | Charge: 0–45°C; Discharge: -20–60°C | |
| Storage | Long-term/Short-term Storage | -20–35°C / up to 50°C |
| Protection | Overcharge Protection | 4.25±0.025V (per cell) |
| Over-discharge Protection | 3.0±0.1V (or 2.4±0.06V) | |
| Overcurrent Protection | 5–10A | |
| Short Circuit Protection | Yes |
With its compact size and high voltage, this battery is ideal for:

Apsenx offers customized 18650-2S1P battery packs tailored to your device’s structure, current needs, and terminal configurations:
Custom battery solutions provide better compatibility, higher stability, and safer integration for your application.

Key factors to consider when purchasing a 7.2V 2000mAh lithium battery:

Apsenx provides global customers with technical support and fast quotation services to help select the most cost-effective and reliable battery solution.
Apsenx has years of experience in custom lithium battery solutions and offers:
Contact us today for your custom 7.2V lithium battery quote and technical solution!

High-performance 36V 10Ah water bottle lithium battery for electric bikes. Lightweight 3.5kg, fast charging in 1.5–2 hours, safe & durable with up to 500 cycles. Ideal for commuting and long rides.

high-performance 18650 Battery 4000mAh, offering stable 24V power and deep cycle support. Perfect for electric scooters, power tools, and energy storage systems. Built-in safety protections ensure long-lasting, reliable performance.

Apsenx supplies high-quality 11.1V 850mAh lithium polymer battery packs featuring premium cobalt materials, multiple safety protections, and customizable options. Ideal for remote toys, electric tools, and portable electronics. Fast shipping and flexible OEM/ODM services available.

Apsenx offers high-quality 3S1P 18650 11.1V 2600mAh lithium ion battery packs with durable steel shell and advanced safety features. Suitable for beauty instruments, medical devices, flashlights, and portable electronics. OEM & ODM customizable. Long cycle life over 1000 charges.

High-performance 48V 13000mAh 18650 lithium battery pack with 13S5P configuration and six layers of smart protection. Compatible with most electric scooters, motorcycles, and bikes. OEM & ODM customizable voltage, capacity, and connectors. Over 1000 charge cycles and built for safety and durability.

High-quality 18650 3.7V 10Ah Li-ion battery pack with Grade A cells, long cycle life, and multiple protection features. Ideal for consumer electronics, lighting, smart devices, power tools, and outdoor applications. OEM & ODM customization available with CE, RoHS, UN38.3 certifications. Fast delivery & competitive price.

High-performance 18650 22.2V 7.8Ah 2600mAh 6S3P rechargeable lithium-ion battery pack with Grade A cells for e-bikes, power tools, cleaning robots, RC devices, and more. Long cycle life, multiple protections, and customizable voltage, capacity, and connectors. OEM/ODM wholesale supplier.

High-performance 48V 13S2P lithium-ion battery pack using Grade A 18650 cells with a 5-year lifespan and intelligent 6-layer protection. Perfect for electric bikes, scooters, and high-voltage applications. OEM/ODM customization available for capacity, size, connectors, and branding.
Discover the advantages, applications, and assembly insights of 10S3P lithium-ion battery packs. Apsenx delivers safe, efficient, and long-lasting customized solutions for electric transportation, energy storage, and professional equipment.
View detailsDiscover the differences between lead-acid and lithium battery packs for reclining furniture. Learn about price, weight, lifespan, and safety to make the right choice.
View detailsChina leads the global power battery market, but liquid lithium batteries face limitations. Solid-state batteries may become the future, with breakthroughs expected by 2030.
View detailshow lithium battery packs power electric vehicles, solar stations, and everyday electronics. Learn about their structure, advantages, and wide-ranging applications.
View details
HelloPlease log in