Long Runtime Rechargeable 21700 Lithium Battery 3.7V 32000mAh For Outdoor Industrial Use
Price:
Negotiable
MOQ:
1000PCS
Delivery Time:
Negotiable
Brand:
MEISAEN
Product Description
Meet your high-capacity, long-runtime power needs with our INR21700-8P 3.7V 32000mAh Lithium-Ion Battery Pack. Built with premium 21700 cells in an 8-parallel configuration, this pack delivers a massive 32000mAh capacity at 3.7V, making it ideal for power-hungry portable devices, outdoor equipment, and backup power solutions.
✨ 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
Perfect for powering a wide range of 3.7V devices requiring high capacity:
- 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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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Meisha New Energy Technology Co., LTD
Location
Room 811, Kaihaoda Building, Block 1, No.1 Gongyeyuan Road, Shanghenglang Community, Dalang Subdistrict, Longhua District, Shenzhen City
Contact Person
gaojianchao