7.4V 21700 Lithium Battery 20000mAh High Capacity For Robotics DIY Power Projects
| High Light: | 21700 Lithium Battery High Capacity,21700 Lithium Battery 20000mAh,7.4V Lithium Battery 20000mAh |
||
Key Features
- Ultra-High Capacity: 20000mAh nominal capacity at 7.4V (8.4V fully charged), providing industry-leading runtime for your devices.
- Premium 21700 Cells: Utilizes high-quality 21700 lithium-ion cells, known for their high energy density and long cycle life.
- Integrated BMS Protection: Built-in safety circuit safeguards against overcharge, over-discharge, overcurrent, and short circuits for worry-free operation.
- Compact & Robust Design: Dimensions of 42 × 42 × 142mm make it easy to integrate, while the durable blue PVC heat shrink casing offers excellent insulation and impact protection.
- Plug-and-Play Connector: Pre-fitted with a standard 2-pin red connector for easy installation (custom connectors available on request).
- No Memory Effect: Recharge at any level without reducing overall capacity, ensuring consistent power delivery over hundreds of cycles.
Specifications
| Parameter | Details |
|---|---|
| Cell Type | 21700 Lithium-Ion |
| Configuration | 2S4P (2 Series, 4 Parallel) |
| Nominal Voltage | 7.4V |
| Nominal Capacity | 20000mAh |
| Rated Energy | 148Wh |
| Full Charge Voltage | 8.4V |
| Cut-off Voltage | 6.0V (typical) |
| Connector | 2-Pin Red Connector |
| Dimensions | 42 × 42 × 142 mm |
| Protection | Overcharge, Over-discharge, Overcurrent, Short Circuit |
| Operating Temp (Discharge) | -20℃ ~ 60℃ |
| Operating Temp (Charge) | 0℃ ~ 45℃ |
Common Applications
- High-power portable speakers and audio equipment
- LED lighting systems, outdoor floodlights, and solar lights
- Robotics, automation projects, and RC vehicles
- Portable medical devices and monitoring equipment
- Small pumps, fans, and power tools
- Off-grid backup power supplies and DIY projects
Safety & Usage Tips
- Use only a dedicated 8.4V lithium-ion battery charger with matching polarity to avoid damage.
- Do not expose the battery pack to water, high humidity, or extreme temperatures outside the specified ranges.
- Keep away from metal objects that could short-circuit the terminals.
- If the pack swells, leaks, or emits an unusual smell, discontinue use immediately.
- For long-term storage, keep the pack in a cool, dry place with a 40-60% charge level.
74Wh 7.4V 10000mAh Lithium Battery For Portable Devices Small Pumps Fans
Elevate your portable devices with our 21700 2S2P 7.4V 10000mAh Lithium-Ion Battery Pack. Built with premium 21700 cells in a 2S2P configuration, this pack delivers a robust 10000mAh capacity at 7.4V (74Wh total energy), offering exceptional runtime and stable power output for your high-demand ...
8000mAh 3.7V 1S2P 21700 Lithium Battery With High Rate Discharge Large Capacity
Product Features High rate 21700 lithium battery cell assembled battery pack, with large capacity and high endurance, strong cell consistency, low internal resistance, and stable discharge. Built in precision protection board, with multiple protections against overcharging, overdischarging, ...
21700 3P Lithium Battery 15000mAh 3.7V For LED Lights Portable Devices
Applicable Scenarios Portable lighting Handheld electric devices Remote control toys DIY battery pack assembly Mini household appliances Emergency backup power Bullet Points 3P parallel 21700 lithium-ion battery pack, 3.7V 15000mAh (55.5Wh) large capacity Blue PVC protective sleeve for insulation, ...
118.4Wh 16000mAh 7.4V 21700 Lithium Battery For High Demand Devices BMS Protected
Deliver reliable, long-lasting power to your devices with our 7.4V 16000mAh 21700 lithium-ion battery pack. Built with high-quality 21700 cells in a 2S4P configuration, this pack offers a massive 16000mAh capacity at 7.4V, making it the perfect power source for high-demand portable electronics and ...
