free sample wholesale 3.2V 3000mAh 4000mAh 5000mAh 26650 3.7V li-ion battery LiFePo4 battery cell

  • Unit Price: Negotiable
  • Brand:

  • Origin:

    China

  • Categories:Batteries
  • Validity Period:

    Long Term

  • Published on:

    2021-12-28 12:25

  • Product Description
  • Company Overview

Product Information

Brand:

none

Address:

China

Min.Order:

none

Supply:

none

Valid until:

Long Term

Product Details

High quality 5000mAH 3.7V Li-ion Batteries  IMR Lion 26650  Battery 26650 5000mAH 3.7V Rechargeable Battery 

 

 

 Specification

Items

Specifications

Type

3.7V 4000mAh 26650

Nominal voltage 

3.7V

Nominal Capacity

4000mAh

Dimension

mm or Customized

Weight

Approx: 83g

Max.charge current

1.0C

Max.discharge current

4A or according to customer requirement

Charge current

Standard Charging: 0.5C

Rapid charge: 1.0C

Standard Charging method

CC-CV(constant voltage with limited current)

Charging time

0.2C: 5-6 hours; 0.5C: 2-3 hours; Max 1C: 1-2 hours

Cycle life

500-1000 times according to customer use method

Operating temperature

Charging: 0 °C ~+45 °C

Discharging: -20 °C ~+60 °C

Storage temperature

-20°C~+60 °C

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Application
 
Customer Feedback
Company Information

 

Laboratory

Product Flow

Business Partners

 

Packaging & Shipping

 

 

 Payment

FAQ

1. Q. Can you explain in detail how you match cells for a battery pack before you assembling the pack?

A: We will do the following things before assembling the pack:

   a. Select capacity, same capacities cells for one pack

   b.  Measure the voltage, same voltage cells for one pack(difference is under 0.02v per cell)

   c.  Measure the inner resistance,same IR cells for one pack (difference is under 1m Ohm)

  All above steps are very strict to make sure the pack performance is perfect.

 

2.Q: How about you payment and delivery items?

A: Payment items: By T/T, 50% for deposit, and balance all before shipment. For small amount, we also accept payment via PayPal, Western Union.

 

3.Q.Can I have a sample order? 

A: Yes, samples orders are welcome.We can offer free samples if the quantity not above 3 pcs, you only need to pay the shipping cost.

 

4. Q: How to solve the quality problems after sales?

(1) Take photos & videos of the problems and send to us.

(2) Send back the physical problem battery by express to us.

(3) Engineer will analyze the defective battery within 2 working day.

(4) 1 Year Warranty after leaving our factory, our defect rate is under 1%,we'll repaired or replaced the battery for free if non-human factor quality problems be confirmed.

 

5.Q: How's your lead time?

   A: 2-5 days for sample, 10-15 working days for large quantity.

 

6.Q: What kind of certificates could you provide for these batteries?

   A: We have CE,CB,KC,MSDS,UN38.3 for most our current model, if It's custom-making design, usually no current certificates, we could apply for you if you need, but the related fees should be paid by your side, and if your order is big enough, certificate fees can be refunded. 

 

7.Q: Can your factory print our logo/brand on the product?

A: Yes, and we will do this free of charge if the order quantity is big enough, please contact us for more details.

 

8.Q :Can you make customized battery?

A: Of course. We have professional engineers that can give you the most suitable solution according to your special requirements.

 

Contact Us

 

 

 

 

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