China's best-selling bsy 18650 50A 3000mAH 3.7V li-ion battery

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$3.00 - $4.88 / Pieces | 20 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
BSY, bsy
Model Number:
18650 50A, 18650, bsy imr18650 3000mah 3.7v bat
Nominal Capacity:
Nominal Voltage:
3.7v, 3.7v, 3.7v
Cycle life:
500-1000 times
Deep Blue
Flat top
18*65mm, 18*65
Discharge rate:
rechargeable lithium battery
Supply Ability
Supply Ability:
1000000 Piece/Pieces per Week
Packaging & Delivery
Packaging Details
brown box


China's best-selling bsy 18650 50A 3000mAh 3.7V li-ion battery


SupplyAbility:    1000000 Piece/Pieces per Week ecig mod

Packaging & Delivery

Packaging Details     1. each battery has a small box;
                                      2. two batteries in a middle box;
                                      3. normally 180pcs batteries in a carton.
Port                               Shenzhen
Lead Time :                 Shipped in 2 days after payment
Product Description




Model No.
BSY 18650 3000mah 50A battery
Nominal capacity
Minimum capacity
Charge Voltage
4.35 ± 0.03 V
Nominal Voltage
Charging method
CC-CV (2.5V cut-off)
Charging current
Standard charge: 0.75A Rapid charge: 4A
Charging time
Standard charge: 300min Rapid chare: 40min ( at 25°C)
Max. continuous discharge
Max. pulse discharge
Discharge cut-off voltage
Cell Weight
50.0g max
Cell dimension
Height : 64.60±0.15mm Diameter : 18.15±0.1
Operating temperature
Charge : 0 to 50°C ( recommended recharge release <45°C) Discharge: -20 to 75°C ( recommended recharge release <60°C)
Storage temperature
18 months : -20~25°C 3 months : -20~45°C 1 month : -20~50°C


Product Description



Company Information

 Shenzhen Baisiyu Technology Co.,Ltd,. Established in 2009, is a professional battery supplier in Shenzhen, China. We are a manufacturer and trading company of rechargeable lithium ion batteries, chargers and electric cigarette accessories. We have more than 50 employees and 5 professional engineers, who have grown up together with BSY battery and all of our customers since 2009.

Packaging & Shipping




Q1: How about the quality of BSY batteries?

A:Our BSY cells are IMR high quality battery, each of our battery is tested strictly before putting into market. It is lithium ion rechargeable, and the cycle life of BSY is more than 500 times.

Q2: Do you have minimum order quantity?

A: No, we welcome all of your orders.

Q3: Do you accept OEM and DOM?

A: Welcome. Please send us your customized design.

Q4: Which payment do you accept?

A: We accept PayPal, T/T, Western Union, Alipay, and ect.

Q5: How do I order your products?

A: Please contact us via email, Skype or Phone, and tell us the items and quantity you want, we will send you Performa Invoice within 24 hours.

Q6: What’s the shipment and delivery time?

A: We ship with UPS, DHL, FedEx, PostNL, EMS, TNT. Normally 8-10 days on delivery, fast and safety.

Q7: What should I do if there is quality problem of my order?

A: Please contact us as soon as possible; we will change new items for you.