3.7V 500mAh Lithium Polymer Battery – KP Battery

The 3.7V 500mAh Lithium Polymer Battery from KP Battery is a 1S single-cell LiPo in a 30 x 20 x 9 mm flat pouch format, terminated with open-ended bare wire leads. At 500mAh and 3.7V nominal, the cell stores 1.85Wh of energy 25% more than a 400mAh variant while remaining in a slim, compact body that fits inside small RC aircraft frames, wearable enclosures, and tight instrument housings where larger cells cannot mount. The 9mm thickness makes this one of the thicker compact LiPo options, which allows the higher capacity without increasing the 30 x 20 mm footprint significantly.

The lipo battery bare wire leads provide maximum wiring flexibility solder red positive and black negative directly to a TP4056 charge module battery input, crimp on a 1.25mm or 2mm JST connector to match the target board header, or wire directly into a balance charge lead for a LiPo-specific charger. At 50mA average current draw typical for a continuously active BLE or WiFi module in low-power mode the 500mAh cell delivers approximately 10 hours of operation per full charge cycle. For micro RC drone, the 500mAh capacity typically extends flight time compared to 300mAh or 400mAh packs on the same frame and motors.

The lithium polymer 500mAh battery must be charged with a 1S LiPo charger terminating at exactly 4.2V never use a generic USB charger or NiMH charger with a lithium polymer cell. Discharge cutoff should be set to approximately 3V per cell in the ESC or protection circuit. Visible pouch swelling indicates over-discharge or overcharge damage retire swollen packs immediately. Always insulate bare wire leads when the battery is disconnected. Available on StemVolt. This cell is working on compact RC and portable IoT power.

Related Product:

• Checkout 3.7V 600mAh Lithium Polymer Battery – KP Battery

Features:

• 3.7V 500mAh lithium polymer battery flat pouch fits micro RC frames and slim wearable enclosures
• 500mAh capacity stores 1.85Wh 25% more than 400mAh at similar dimensions
• Bare wire leads suit direct PCB pad soldering and custom JST connector crimping
• 1S single-cell 3.7V charges to 4.2V with any 1S LiPo balance charger
• KP Battery branded with consistent 30x20x9mm dimensional specifications

Technical Specifications:

 Applications:

• 3.7V 500mAh lithium polymer battery powers micro indoor quadcopter with extended session runtime
• LiPo battery supplies 1S ESC and motor on small RC fixed-wing park flyer aircraft
• Lithium polymer battery for RC drone powers FPV micro camera and video transmitter
• Battery runs compact WiFi IoT sensor node in portable enclosure
• 500mAh battery powers small RC boat receiver and motor speed controller

Package Includes:

• 1 x 3.7V 500mAh Lithium Polymer Battery