SKU: #5003Power & Components
2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 Lipo
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₹75.00
₹65.00
(Inc. GST)Save 13%- •�️ How It Works The module uses a boost/step: up charging circuit to convert the lower USB Type-C input voltage into the 8.4V charging voltage required for a 2S lithium battery pack. Example: 5V Type-C Input → Step-Up Circuit → 8.4V Charging Output → 2S 18650 Battery A 2S battery pack consists of two lithium cells connected in series: 3.7V + 3.7V = 7.4V nominal4.2V + 4.2V = 8.4V fully charged
- •� LED Indicators The module uses status indicators to show the charging condition: CR: Charging OK: Fully charged / constant: voltage stage
- •⚠️ Important Notes This module is intended for 2S battery packs only. Do not connect a single 18650 cell directly to the 8.4V charging output. The two cells should be properly matched and in good condition. Do not exceed the 6V maximum input voltage. A suitable Type: C power source is required to supply the necessary input current. The 4A rating is the input-current rating, not the battery charging current. The specified charging current for this 2S 4A version is approximately 2.2A. This charging module should not automatically be considered a replacement for a dedicated 2S BMS/protection board. Use appropriate battery protection where required. Check the PCB polarity and connection markings before connecting the battery. Do not short-circuit the input or output. Use properly matched lithium cells for safe and reliable charging. Keep the module adequately ventilated during higher-current operation.
- •It accepts a 3–6V DC input through USB Type-C and boosts the voltage to 8.4V, the required full-charge voltage for a 2S lithium battery pack
- •The 4A specification refers to the maximum input current version
- •According to available product specifications, the corresponding charging current is approximately 2.2A, rather than 4A
- •This distinction is important when selecting the USB power adapter
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SKU: ET05003
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Description
[Step UP Buck Converter] 2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 The 2S 4A Type-C Lithium Battery Charging Module is a compact step-up charging board designed for charging 2-cell series (2S) 18650 Li-ion/Li-Po battery packs. It accepts a 3–6V DC input through USB Type-C and boosts the voltage to 8.4V, the required full-charge voltage for a 2S lithium battery pack. The 4A specification refers to the maximum input current version. According to available product specifications, the corresponding charging current is approximately 2.2A, rather than 4A.
🔹 Key Features
- •It accepts a 3–6V DC input through USB Type-C and boosts the voltage to 8.4V, the required full-charge voltage for a 2S lithium battery pack
- •The 4A specification refers to the maximum input current version
- •According to available product specifications, the corresponding charging current is approximately 2.2A, rather than 4A
- •This distinction is important when selecting the USB power adapter
- •Do not connect a single 18650 cell directly to the 8.4V charging output
- •The two cells should be properly matched and in good condition
🔹 Technical Specifications
�️ How It Works The module uses a boost/step:up charging circuit to convert the lower USB Type-C input voltage into the 8.4V charging voltage required for a 2S lithium battery pack. Example: 5V Type-C Input → Step-Up Circuit → 8.4V Charging Output → 2S 18650 Battery A 2S battery pack consists of two lithium cells connected in series: 3.7V + 3.7V = 7.4V nominal4.2V + 4.2V = 8.4V fully charged
� LED Indicators The module uses status indicators to show the charging condition: CR: Charging OK: Fully charged / constant:voltage stage
⚠️ Important Notes This module is intended for 2S battery packs only. Do not connect a single 18650 cell directly to the 8.4V charging output. The two cells should be properly matched and in good condition. Do not exceed the 6V maximum input voltage. A suitable Type:C power source is required to supply the necessary input current. The 4A rating is the input-current rating, not the battery charging current. The specified charging current for this 2S 4A version is approximately 2.2A. This charging module should not automatically be considered a replacement for a dedicated 2S BMS/protection board. Use appropriate battery protection where required. Check the PCB polarity and connection markings before connecting the battery. Do not short-circuit the input or output. Use properly matched lithium cells for safe and reliable charging. Keep the module adequately ventilated during higher-current operation.
🔹 Pin Configuration & Wiring
🔹 Applications
This component is engineered and suitable for:
- •Microcontroller interfacing (Arduino, ESP32, Raspberry Pi, STM32)
- •IoT telemetry, environmental monitoring, and smart home systems
- •Robotics navigation, obstacle detection, and motion sensing
- •STEM education, university electronics labs, and maker prototyping
🔹 Package Includes
- ✓1 × 2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 Lipo
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Subtotal: ₹65.00 +18% GST
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