The 3.7V 400mAh Lithium Polymer Battery is a 1S single-cell LiPo pack at 3.7V nominal and 400mAh capacity, terminated with open-ended bare wire leads. The 1S designation confirms this is a single lithium polymer cell no series connection producing 3.7V nominal and reaching 4.2V at full charge. At 400mAh, this pack stores 1.48Wh of energy, sitting between the 200mAh compact variant and the 1100mAh larger variant in the LiPo range, making it a practical choice for that need more capacity than the 200mAh offers but in a physically smaller package than the 1100mAh provides.
The 3.7v lipo battery 400mah bare wire leads give connector flexibility solder directly to PCB pads, crimp a 2mm or 1.25mm JST connector, or wire directly into a TP4056 charge module battery input without adapter cables. At 40mA average current draw typical for a continuously transmitting BLE module or a small RC receiver the cell delivers approximately 10 hours of operation per charge. For micro drone, 400mAh suits very small indoor quad frames where the motor current stays low and flight sessions run for 3 to 6 minutes depending on motor efficiency.
The lithium polymer battery for rc drone requires a 1S LiPo specific charger or balanced charge module terminating at exactly 4.2V. Never discharge below 3V per cell the flat polymer pouch swells visibly when over-discharged or overcharged. A swollen pack must be retired from service immediately regardless of remaining apparent capacity. Never short the bare wire leads insulate the lead ends whenever the battery is not connected to a circuit. This battery is working on micro RC and compact portable power. Available on StemVolt.
Related Product:
- Checkout 3.7V 500mAh Lithium Polymer Battery
Features:
- 3.7V 400mAh lithium polymer battery charges to 4.2V with dedicated 1S LiPo charger
- 400mAh capacity stores 1.48Wh double the 200mAh compact LiPo variant
- Bare wire leads suit direct PCB soldering and custom connector crimping
- Flat LiPo pouch format fits slim enclosures and compact RC aircraft frames
- Rechargeable Li-Polymer chemistry for repeated drone and project charge cycles
Technical Specifications:
Applications:
- 3.7V 400mAh lithium polymer battery powers micro indoor quadcopter drone frame
- LiPo battery supplies 1S power to small RC fixed-wing glider receiver and servo system
- Lithium polymer battery for RC drone runs FPV micro camera on small whoop drone
- Battery powers compact BLE sensor node in miniature enclosure project
- 400mAh battery runs small RC boat speed controller and motor system
Packages Includes:
- Â 1 x 3.7V 400mAh Lithium Polymer Battery
Subhashis Chakraborty –
Same day dispatch service
Tsering Dorjee –
400mAh lipo battery arrived securely packed and performed reliably in IoT projects.
Kshitij Bhandari –
Authentic product quality recieved from electronics parts store