Specification | Details |
Model | 3.6V Tenpower INR21700-40XG(Huaian Tenpower Lithium Co., Ltd.)) |
| Nominal Capacity | 4000mAh (0.2C, 2.5V discharge) |
Max Continuous Discharge Current | 45A (no temperature cut-off); 90A (80℃ temperature cut-off) |
Pulse Discharge Current | ≥160A (5S) |
Max Charging Current | 12A |
Internal Impedance | ≤3.5mΩ (25±3℃, 30%SOC, 1kHz AC) |
Dimensions | Max Diameter: ≤21.50mm; Max Height: ≤70.50mm |
| Cycle Life | ≥60% capacity retention after 600 cycles |
Product Overview
The Tenpower INR21700-40XG is a high-performance rechargeable lithium-ion battery cell, tailored to meet the high-power demands of power tools and e-mobility equipment. With a nominal voltage of 3.6V, nominal capacity of 4000mAh, and 45A continuous discharge current (90A with 80℃ temperature cut-off), it balances large capacity and strong power output perfectly. Adopting CC-CV charging method, it supports fast and safe charging, while its compact 21700 form factor and excellent environmental adaptability make it easy to integrate into various high-drain devices.
Key Features & Benefits
Genuine Tenpower Quality: 100% authentic Tenpower INR21700-40XG cells, produced by Huaian Tenpower Lithium Co., Ltd. with strict quality control, ensuring stable performance and high reliability.
4000mAh Large Capacity: Nominal 4000mAh capacity, providing long runtime for power tools and e-mobility devices, reducing frequent recharging and improving work efficiency.
45A-90A Ultra-High Discharge Rate: 45A continuous discharge (no temperature cut-off) and 90A discharge (with 80℃ temperature cut-off), plus ≥160A 5S pulse discharge, meeting the high-power needs of heavy-duty equipment.
Low Internal Impedance: ≤3.5mΩ (25±3℃, 30%SOC) at 1kHz AC, minimizing energy loss, reducing heat generation, and extending battery and device lifespan.
Long Cycle Life: ≥60% capacity retention after 600 cycles, ensuring long-term stable use and reducing replacement costs.
Wide Operating Temperature: Charge at 0~45℃, discharge at -20~60℃, adaptable to harsh working environments (e.g., outdoor power tools, e-scooters in cold weather).
Comprehensive Safety Protection: Passes overcharge, over-discharge, short-circuit, crush, and thermal shock tests (no fire, no explosion), ensuring safe use in high-power scenarios.
Recommended Applications
The Tenpower INR21700-40XG 3.6V 4000mAh 45A-90A battery cell is specially designed for high-power scenarios, ideal for:
Power Tools: Cordless drills, impact wrenches, angle grinders, reciprocating saws, and other heavy-duty electric tools that require strong and stable power output.
E-Mobility: Electric scooters, electric bicycles, electric skateboards, and light electric vehicles, providing long续航 and reliable power support.
High-Drain Industrial Equipment: Handheld test instruments, portable power stations, and emergency backup power supplies.
Custom Battery Packs: DIY high-power battery packs for hobbyists and professional equipment manufacturers.
Why Source Tenpower INR21700-40XG From Joyvolte Energy?
Offer competitive bulk pricing and genuine products.
Flexible MOQ, suitable for both small businesses and large-scale manufacturers.
Full compliance with Tenpower's official specifications, with access to complete technical documentation.
Fast shipping with professional packaging to ensure safe delivery.
24-hour customer service and technical support, providing quotes and solutions promptly.
Ready to get the high-performance Tenpower INR21700-40XG 4000mAh 45A-90A battery cell for your power tools or e-mobility products?
Contact us today for custom quotes, bulk pricing, and stock availability. We respond to all inquiries within 24 hours — let's build a reliable partnership!
