Dongguan Everwin Tech Co., Limited
| Delivery Time | 1-15 days depend on quantity |
| Chargeable | Yes |
| Application | Consumer Electronics, Uninterruptible Power Supplies, Boats, Toys |
| Warranty | 12 months |
| Payment Terms | L/C,T/T Paypal Union Westen |
| Certificate | RoHS,CE, FCC, ISO9001 |
| Size | 18*650mm |
| Weight | 60G(2.12oz) |
| Battery Size | lithium ion 18650 3.7v 21000mAh |
| Battery type | Lithium Ion Battery |
| Cycle Life | 1000 cycles |
| Operating Temperature(℃) | -20~60℃ |
| Product name | li-ion 18650 3.7v 21000mAh |
| Cathode Materials | LiNiMnCoO2 |
| Type | Li-ion |
| Place of Origin | Guangdong, China |
| Brand Name | EWT |
| Certification | CE UN ROHS MSDS IEC |
| Model Number | 18650 3.7V 21000mah li-ion battery |
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Product Specification
| Delivery Time | 1-15 days depend on quantity | Chargeable | Yes |
| Application | Consumer Electronics, Uninterruptible Power Supplies, Boats, Toys | Warranty | 12 months |
| Payment Terms | L/C,T/T Paypal Union Westen | Certificate | RoHS,CE, FCC, ISO9001 |
| Size | 18*650mm | Weight | 60G(2.12oz) |
| Battery Size | lithium ion 18650 3.7v 21000mAh | Battery type | Lithium Ion Battery |
| Cycle Life | 1000 cycles | Operating Temperature(℃) | -20~60℃ |
| Product name | li-ion 18650 3.7v 21000mAh | Cathode Materials | LiNiMnCoO2 |
| Type | Li-ion | Place of Origin | Guangdong, China |
| Brand Name | EWT | Certification | CE UN ROHS MSDS IEC |
| Model Number | 18650 3.7V 21000mah li-ion battery |
High Capacity: 21000mAh provides extended runtime for portable devices.
Long-Life Performance: 800 cycles ensure reliable use over time.
Wide Temperature Range: Operates efficiently between -20°C to 60°C.
Durable Construction: Li-ion 18650 cells for robust performance.
Multiple Certifications: RoHS, CE, and FCC compliant for peace of mind.
Free of harmful heavy metals, conforms to international environmental standards for global export.
Compact package with large capacity, easy for installation in outdoor portable power and energy storage equipment.
Support customized wire length, connector, housing shape to match solar storage, portable power equipment demands.
Every battery pack undergoes capacity testing and aging inspection before shipment for stable bulk quality.
Shenzhen Everwin Tech Co., Limited is a 20-year battery manufacturer specializing in lithium iron phosphate, lithium ion, and Ni-MH batteries. With ISO 9001:2015 certification, they offer OEM/ODM solutions for electric vehicles, tools, and storage systems. Their products comply with CE, UL, and other global standards, ensuring safety and quality in diverse applications.
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
25000000-30000000
Employee Number:
250~300
Ecer Certification：
Verified Supplier
Everwin Tech Co., Limited was established in 2009 and is a professional battery manufacturer specializing in reserach design and producing power solutions for all kinds of market . EWT Battery provide ODM, OEM battery solutions for medical, solar lighting, smart metering lo... Everwin Tech Co., Limited was established in 2009 and is a professional battery manufacturer specializing in reserach design and producing power solutions for all kinds of market . EWT Battery provide ODM, OEM battery solutions for medical, solar lighting, smart metering lo...
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