In Stock!!! 3500mah 30a 18650 Battery Efest 3500mah rechargeable li-ion battery

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$3.85 - $5.60 / Piece | 1 Piece/Pieces (Min. Order)
Battery Type:
Nominal Capacity:
Nominal Voltage:
Support Express · Sea freight
Lead Time:
Quantity(Pieces) 1 - 10000 >10000
Est. Time(days) 3 Negotiable
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Quick Details
Toys, Power Tools, Home Appliances, Consumer Electronics, BOATS, Golf Carts, SUBMARINES, Electric Bicycles/Scooters, Electric Folklifts, electric vehicles, Electric Wheelchairs, Electric Power Systems, Solar Energy Storage Systems, Uninterruptible Power Supplies
Battery Size:
18650 li ion
Brand Name:
Model Number:
18650 3500mah
Place of Origin:
Guangdong, China
Model Name:
Efest 18650 battery efest 3500mah 30a rechargeable li-ion battery
Nominal Voltage:
Nominal Capacity:
In stock
Paypal.TT.Western Union
Supply Ability
Supply Ability:
3000000 Piece/Pieces per Week 3500mah 30a 18650 battery 3500mah rechargeable li-ion batteries
Packaging & Delivery
Packaging Details
3500mah 30a 18650 battery efest 3500mah rechargeable li-ion battery Natural Packing:
Each battery packed in one gift box .
10kg batteries in standard Efest export carton.
Picture Example:
Lead Time :
Quantity(Pieces) 1 - 10000 >10000
Est. Time(days) 3 To be negotiated

In Stock!!! 3500mah 30a 18650 Battery Efest 3500mah rechargeable li-ion battery

Why Choose Efest


  • Efest company has focused on lithium battery and charger industrial over 8 years
  • Efest lithium batteries and chargers have passed many international testing, such as UL,CE, RoHs, UN38.3, MSDS,FCC,etc.
  • Efest company has cooperated with many big distributors in many countries, such as USA, CA, UK, France, Italy and so on.
  • OEM. ODM service are available. Welcome to contact us any time!
  • HK warehouse to import battery from Japen and Korea directly. Best price and Guarantee 100% original battery.



Product Description

1. Brand: Efest 

2. Model: 3500mah 30a 18650 battery efest 3500mah rechargeable li-ion battery

3. Nominal voltage: 3.7v

4. Discharging current:20A

5. Capacity: 3500mah

6. Type: Limn

7. Length : 65.23mm
8. Diameter: 18.28mm

9. Color:Purple

10. N.W: 55g

Specification of Efest 3500mah 30a 18650 battery efest 3500mah rechargeable li-ion battery
Size 18.28*65.23mm
Rated Voltage 3.7V
Rated Capacity 3500mAh
Internal Resitance 20mΩ  
Net Weight 50g
Cut-off Discharge Voltage 2.75V 
Charge Upper Limit Voltage 4.20±0.05V
Charging Time

1.5 hours(with Efest battery charger)

Max Discharging Current 60A
Continuous Discharging Current 20A
Cycle Life >500s
Standard charger cc/cv(max ,charging rate 2A)
Warranty 1 years
Operating  Temperature charge (0 ~ 45°C)
discharge  (-20 ~ 60°C)
Storage Temperature within 1 month  (-20~ 50°C)
within 3 months  (-20~ 40°C)
within 3 months (-20~ 20°C)
Detailed Images


Buyer Feedback


Packaging & Shipping
  • Natural Packing:
  • Each battery packed in one gift box 10kg batteries in standard Efest export carton.


Delivery Details:

  • Within 2-3 days after receiving payment(based on actual quantity)
  • Tracking NO. will be sent to you after delivery, and we will track the goods for you until you receive all of them.
  • DHL/FedEx/UPS: 3-5 workdays (for small volume)
  • Air Shipping: 5-7 workdays
  • Sea Shipping: 20-28 days


  • We accept T/T, Western Union, Paypal and HSBS payment methods.(4% Paypal fee needed)
  • If buyers have any problem about payment, please contact with us ASAP.


  • Are you the original supplier of Efest?

Yes, we are. We are original manufacturer of Efest, based in Shenzhen, china. specialized in 3.7v high drain li-ion battery and charger over 8 years.

  • Are you factory?

Yes, our factory is in Shenzhen, and we have branch in Hong Kong and USA.

  • Do you have MOQ ?

No limited. But the more you take, the better price you will received.All products are always in stocks.

  • What is your delivery date?

Usually about 3 days for air or express shipping orders, 7 days for boat shipping orders after payment confirmed.

  • What is your terms of payment?

T/T, Paypal and Western Union.

  • Which shipping method you usually take?

UPS, DHL, FEDEX and so on. We can also ship with your own shipping forwarder.

  • What kind packing you provide for your products?

Gift packing for each products. Standard packing style for all shipping method. Also if you ship with your own agent, we can pack as your agent requested.

  • Can you accept Trade Assurance Order or deposit for order?

Yes, welcome to send us Trade Assurance Order anytime , also we can accept 30% deposit when preparing your order, just make sure full payment before shipping.

Contact us

24-hour online service, please feel free to inquiry us!!!

Just send your Inquiry Details or Click "Buy Now"!!