The 25.2V 10.4Ah 18650-7S4P-2 Li-ion Battery is a high-performance, modular power solution engineered for mid-to-high power devices. Built on the industry-standard 18650 cylindrical cells and configured in 7S4P (7 cells in series, 4 in parallel), it balances robust voltage output, generous capacity, and reliable durability—making it ideal for consumer, industrial, and outdoor applications.
Core Configuration & Power Performance
The “7S4P” design is the backbone of this battery’s performance: 7 series-connected cells deliver a nominal 25.2V (matching 3.6V per 18650 cell, with a safe range of 21V discharged to 29.4V fully charged), while 4 parallel cells boost capacity to 10.4Ah. This combination provides sustained high power—perfect for devices like 24V electric tools (e.g., cordless drills, grinders), portable power stations (for charging phones/laptops), and small electric mobility devices (e.g., balance scooters). It delivers 10.4Ah of energy, translating to 2–3 hours of continuous use for a 500W electric drill or 8–10 hours of backup power for a 30W LED light.
Standard 18650 Reliability
Leveraging the proven 18650 form factor (18mm diameter × 65mm length), this battery benefits from mature manufacturing standards: each cell undergoes strict quality control to ensure consistency in voltage and capacity. The metal-cased 18650 cells also offer excellent thermal stability and resistance to physical impact, making the battery suitable for rugged use—such as outdoor construction tools or off-grid camping gear.
Built-In Safety & Longevity
Safety is integrated into every layer: a dedicated Protection Circuit Module (PCM) guards against overcharging, over-discharging, short circuits, and overcurrent, preventing damage to both the battery and connected devices. The 7S4P configuration further enhances stability by distributing current evenly across parallel cells, reducing individual cell stress. With a cycle life of over 500 charge-discharge cycles (retaining ≥80% initial capacity), it outperforms lead-acid batteries and lower-quality lithium packs, cutting long-term replacement costs.
Versatile Applications & Practical Design
This battery’s 25.2V output and 10.4Ah capacity make it highly adaptable:
- Power tools: Replaces bulky corded tools for flexible, portable work;
- Energy Storage: Powers portable generators for outdoor trips or home emergency backup;
- Mobility aids: Supplies reliable energy for lightweight electric wheelchairs or e-scooters.
Its modular design allows easy integration into existing systems, while compatibility with standard 25.2V Li-ion chargers ensures fast recharging (80% capacity in ~3 hours with a 3A charger). A low self-discharge rate (<5% per month) also means it stays ready for use during storage.
