Long Runtime Rechargeable 21700 Lithium Battery 3.7V 32000mAh For Outdoor Industrial Use
| Battery Type: | Industrial Grade 21700 Lithium Ion Rechargeable Battery Pack | Nominal Voltage: | 3.7V |
| Rated Capacity: | 32000mAh / 32Ah | Full Charge Voltage: | 4.2V |
| ischarge Cut-off Voltage: | 2.75V | Application Grade: | Industrial Outdoor Grade, Customized For Long-time Unattended Outdoor Operation |
| Core Feature: | Ultra-large Capacity & Long Runtime Design, Greatly Extending Device Working Intervals And Reducing Frequent Charging | ||
| High Light: | Rechargeable 21700 Lithium Battery,Long Runtime 21700 Lithium Battery,Lithium Battery 3.7V 32000mAh |
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✨ Key Features
- Ultra-High Capacity: 32000mAh nominal capacity at 3.7V (4.2V fully charged), delivering exceptional runtime for your devices.
- Advanced Safety Protection: Integrated BMS safeguards against overcharge, over-discharge, overcurrent, and short circuits, ensuring safe and reliable operation.
- Supports 0V Charging: Designed to safely charge even if the pack is fully depleted, offering greater flexibility and convenience.
- Robust PVC Encapsulation: Durable blue PVC heat shrink casing provides excellent insulation, moisture resistance, and impact protection.
- Wide Operating Temperature Range: Works reliably in temperatures from -20℃ to 60℃ during discharge, and 0℃ to 40℃ during charging, suitable for diverse environments.
- High Energy Density: Compact dimensions (427084mm) and lightweight design (560g) make it easy to integrate into various projects and devices.
- No Memory Effect: Can be recharged at any level without reducing overall capacity, maintaining consistent performance over time.
| Parameter | Details |
|---|---|
| Model | MR INR21700-8P |
| Cell Type | 21700 Lithium-Ion |
| Configuration | 8P (8 Parallel) |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 32000mAh |
| Rated Energy | 118.4Wh |
| Full Charge Voltage | 4.2V |
| Cut-off Voltage | 2.5V |
| Charging Temperature | 0℃ ~ 40℃ |
| Discharging Temperature | -20℃ ~ 60℃ |
| Protection Features | Overcharge, Over-discharge, Overcurrent, Short Circuit |
| 0V Charging Support | Yes |
| Dimensions | 42 * 70 * 84 mm |
| Weight | 560g |
| Connector | Red/Black Tinned Wire Leads (customizable) |
Common Applications
- Outdoor solar lights, garden lights, and camping equipment
- Portable speakers, power banks, and audio systems
- Industrial monitoring devices and IoT sensors
- Robotics, automation projects, and RC vehicles
- Portable medical devices and diagnostic tools
- Off-grid backup power supplies and DIY projects
Safety & Usage Tips
- Use only a dedicated 4.2V 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.
- Store in a cool, dry place with a 40-60% charge level for long-term storage.
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