7.4 V 850mAh Lithium Ion Battery Pack 102535-2S

Part 1. Where can I check the capacity of the lithium battery?

The capacity of a lithium-ion battery, including the 7.4V 850mAh battery, is typically displayed on the battery label or specifications sheet. It is measured in milliampere-hours (mAh) and indicates the total energy the battery can store. Manufacturers, such as Ufine Battery, clearly mark this information on the product. For accurate verification, you can also use a digital multimeter or a battery capacity tester. This ensures you’re using a battery that matches your device’s requirements.

Part 2. What is 850mah battery life?

The 850mAh battery life depends on the device's power consumption. If a device draws 850mA, the battery will last approximately 1 hour. For devices requiring 425mA, the battery can power it for 2 hours. Factors like temperature, discharge rate, and battery age can influence its runtime.

For instance:

1. LED lights consuming 500mA might last about 1.7 hours.

2. Small drones drawing 850mA may run for around 1 hour.

3. Devices requiring less power, like sensors, can operate for extended periods.

Part 3. How long does it take to charge a 7.4v 850mAh battery?

To calculate charging time, use the formula:

Charging Time (hrs) = Battery Capacity (mAh) ÷ Charger Output Current (mA) × Efficiency Factor (1.2).

For example:

Using a charger with a 500mA output, the charging time is approximately:
850 ÷ 500 × 1.2 ≈ 2 hours.

Fast chargers may reduce this time, but it’s crucial to use a charger compatible with the 7.4V li-ion battery to avoid overcharging or overheating.

Part 4. Charger

The 7.4V 850mAh Li-ion battery typically requires a constant current/constant voltage (CC/CV) charger designed for lithium-ion batteries. A compatible charger should have:

1. 7.4V output voltage

2. Appropriate current output, such as 500mA or 1A, depending on your charging needs.

Ufine Battery provides custom charging solutions tailored to your battery requirements, ensuring safe and efficient charging.

Part 5. How to charge a 850mAh battery?

1. Choose the right charger:Use a lithium-ion charger with 7.4V output.

2. Connect the battery properly:Ensure the positive and negative terminals align with the charger.

3. Avoid overcharging: Modern chargers have built-in cutoff mechanisms to prevent overcharging.

4. Monitor charging: Place the battery in a cool, ventilated area during charging.

Ufine Battery ensures that their 850mAh battery packs are compatible with various chargers for user convenience.

Part 6. Plug

The 7.4V 850mAh battery pack supports various plug types, including:

1. JST connectors – Common in small electronics.

2. XT60/XT90 plugs – Ideal for drones and RC models.

3. DC barrel connectors – Used in IoT devices.

4. Customized plugs – Based on device specifications.

Ufine Battery offers customization for plug types, allowing you to select the most compatible option for your device. This ensures seamless integration with your application.

Part 7. Maintenance and care tips

To extend the life of your 7.4V 850mAh Li-ion battery, follow these tips:

1. Avoid deep discharges: Recharging when the voltage drops to around 3.0V per cell prevents damage.

2. Store properly: Keep in a cool, dry place at 40–60% charge when not in use.

3. Use the right charger: Only use chargers designed for lithium-ion batteries.

4. Protect from extreme temperatures: Avoid exposure to temperatures below 0°C or above 45°C.

5. Inspect regularly: Check for swelling, leaks, or damage. Replace if needed.

Ufine Battery ensures their lithium-ion batteries are built for durability, but proper care enhances performance and longevity.

By choosing the Ufine Battery 7.4V 850mAh lithium-ion battery, you’re investing in quality and reliability for various applications, backed by a trusted manufacturer in custom lithium battery solutions.