High-Capacity 7.4 V 10000mAh Li-Ion Battery Pack 1160100-2S

The 7.4V 10000mAh lithium-ion battery pack is a versatile power solution designed for devices requiring stable, high-capacity energy. Built from two 3.7V cells connected in series, it delivers dependable performance for portable instruments, security systems, and handheld tools.

Below, we’ll explore how it’s structured, its protection features, performance, and tips for selecting and maintaining your battery for optimal lifespan.

Part 1. How many cells does a 7.4V battery pack have?

A 7.4V lithium-ion battery pack typically consists of two 3.7V cells connected in series (2S configuration). Each cell provides about 3.7V, so together they deliver a nominal voltage of 7.4V. This setup balances voltage, capacity, and compact size — ideal for powering portable instruments, security systems, and handheld tools.

Ufine Battery engineers can adjust configurations (2S, 3S, etc.) and capacities (from 2000mAh to 20000mAh) according to your project’s needs.

Part 2. Does the 7.4V 10000mAh battery pack have a PCB?

Yes. Ufine’s 7.4V 10000mAh lithium-ion battery pack includes a built-in protection circuit board (PCB), also called a protection circuit module (PCM). It ensures safe and stable operation by preventing damage during charging and discharging.

Main Protection Functions:

• Overcharge Detection – Stops charging when voltage exceeds the safe limit.

• Overdischarge Detection – Cuts off output when voltage drops too low.

• Overcurrent Protection – Prevents excessive current draw that can overheat the cells.

• Short Circuit Protection – Automatically disconnects power when a short circuit occurs.

These functions help extend cycle life and ensure reliable operation under demanding conditions.

Part 3. How long does a 7.4V 10000mAh battery last?

The runtime depends on the device’s power consumption. You can estimate battery life using the formula:

Operating Time (hours) = Battery Capacity (mAh) ÷ Device Current Draw (mA)

For example, a device that draws 1000mA can operate for about 10 hours, while one drawing 2000mA lasts about 5 hours. Real-world performance varies with temperature and load, but Ufine’s batteries are optimized for stable voltage and low self-discharge, ensuring dependable operation even after long-term use.

Part 4. Is higher battery capacity always better?

Not always. A higher-capacity battery offers longer runtime but also increases size, weight, and charging time. The best option depends on your device’s design and intended usage. For portable products, balancing weight and power is key.

Part 5. Choosing the right connector and cable

Connectors ensure compatibility and safety between the battery and device. Common options include JST, Molex, and SM connectors for small devices, or XT30/XT60 for higher current loads.

When ordering from Ufine Battery, you can specify connector type, cable length, wire gauge, and polarity — so your battery pack is ready to plug and use safely.

Part 6. Charging and maintenance tips

Proper charging and maintenance can significantly extend a lithium-ion battery’s lifespan. Follow these tips:

• Use a charger designed for 7.4V Li-ion batteries (8.4V output).

• Avoid full discharges — recharge when voltage drops below 6.6V.

• Store batteries at 20–25°C, away from heat and moisture.

• Disconnect once fully charged to prevent overcharging.

• Recharge every 3–6 months when not in use to maintain activity.

With these practices, Ufine’s 7.4V 10000mAh pack retains over 80% capacity even after 300 cycles.