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Lithium Thionyl Chloride Battery

12V Lithium Iron Phosphate Battery

24V Lithium Iron Phosphate Battery

48V Lithium Iron Phosphate Battery

Lithium Iron Phosphate Battery Pack

Lifepo4 Energy Storage Battery

Lithium Ion Battery Pack

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Nickel Metal Hydride Battery

Nickel Cadmium Battery

Energy Storage System ESS
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Home > Products >
Lithium Ion Battery Pack
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EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
All Category

Lithium Thionyl Chloride Battery

12V Lithium Iron Phosphate Battery

24V Lithium Iron Phosphate Battery

48V Lithium Iron Phosphate Battery

Lithium Iron Phosphate Battery Pack

Lifepo4 Energy Storage Battery

Lithium Ion Battery Pack

Lithium Polymer Battery

Nickel Metal Hydride Battery

Nickel Cadmium Battery

Energy Storage System ESS
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michael@ewtbattery.com
+8613714565423
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EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
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EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker

Brand Name: EWT
Model Number: 18650 3.7V 21000mah li-ion battery
MOQ: 500
Price: $9-9.50
Detail Information
Product Description
Detail Information
Place of Origin:
Guangdong, China
Certification:
CE UN ROHS MSDS IEC
Battery Size:
Lithium Ion 18650 3.7v 21000mAh
Cycle Life:
1000 Cycles
Cathode Materials:
LiNiMnCoO2
Application:
Consumer Electronics, Uninterruptible Power Supplies, Boats, Toys
Weight:
60G(2.12oz)
Operating Temperature(℃):
-20~60℃
Type:
Li-ion
Size:
18*650mm
Delivery Time:
1-15 Days Depend On Quantity
Payment Terms:
L/C,T/T Paypal Union Westen
Certificate:
RoHS,CE, FCC, ISO9001
Warranty:
12 Months
Battery Type:
Lithium Ion Battery
Product Name:
Li-ion 18650 3.7v 21000mAh
Chargeable:
Yes
Product Description
Product descriptions from the supplier

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.

EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
About this supplier

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 overview
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
Customization capabilities
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
Factory profile
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
EWT 3.7V 21000mAh 18650 Li-ion Rechargeable Battery Pack for Portable Bluetooth Speaker
Tags: 

Lithium Ion Battery Pack  

Rechargeable Li Ion Battery Pack  

Li Ion Power Battery Pack

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