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Rechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40A

Changsha Enook Technology Co., Ltd
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Rechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40A

Model Number : 21700

Certification : UN38,3/CNAS/KC

Place of Origin : China

MOQ : 2000

Payment Terms : T/T, Western Union

Weight : 50g

Capacity : 4000mAh

Size : 21*70mm

Type : flat top

Warranty : 1years

Voltage : 3.7v~ 4.2v

Charging termperature : 0°C~50°C

Discharging temperature : -20°C~75°C

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ENOOK 21700 lithium ion batteries 4000mAh 40A rechargeable 3.7V battery

Product Description:

-Do not over-discharge/overcharge

-Recharge empty batteries ( resting voltage~3.6V ) as soon as possible. Leaving Li-Ion batteries

in discharged state will incur irreversible damage ( capacity / cycle loss )- Do not short circuit ( will release tremendous current )- Keep it away from fire.

 

Rechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40ARechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40A

Support and Services:

21700 Battery Technical Support and Service

We offer comprehensive technical support and service for our 21700 Batteries. Our team of knowledgeable professionals are available to answer your questions and provide you with the technical information you need. From installation and troubleshooting to product performance and maintenance, we are here to help.

 Rechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40ARechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40A

Packing and Shipping:

Packaging and Shipping

21700 batteries must be packaged with extreme care. Each battery must be individually wrapped in an insulated material designed to prevent shorts. The entire package must be placed in a static-resistant bag or box before being shipped. Batteries must never be shipped in bulk or loose without proper packaging.

Batteries should always be shipped via a tracked courier such as FedEx or UPS. The courier should be notified of the battery shipment and the package must be labeled as containing hazardous materials. The package should also be marked with the proper shipping class, such as Class 8, for lithium batteries.

 Rechargeable 3.7 V 21700 Lithium Ion Battery 4000mAh Max 40A

FAQ:

Q1: When are you available?
A1: 24 hours online every day
Q3: How is the quality of the products?
A3: 1.Always provide the premium authentic products,never fake
2.Only provide A Grade cells
Q4: Do you provide the OEM&ODM service?
A4: Yes,of course.We will try our best to meet our customers' requestment
Q5: What's the lead time?
A5: 1.Sample orders: 1-3 working days
2.Bulk orders: 3-7
working days according to different quantities
3.OEM: 7-12 working days on receipt of sample confirmation
Q6: What's the shipping?
A6: 1.We will choose the most safest and the most economical shipping way for you
2.Always 3-7 days from China to the destination country.Please note that some remote area may 1-3 days delay
Q7: What's the payment?
A7: T/T ,Western Union & Paypal
Q8: What's the warranty of the products?
A8: 1.12 Months warranty
2.Once any problem,please send us HD videos and pictures to show the problem you met,if it's our problem,we will send you new products or full refund except artificial damage

Product Tags:

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