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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Sairi
  • Model Number: 18650 Li-ion Battery Pack
  • Composed Type: 2 series
  • Type: Li-Ion
  • Components: Li-ion
  • Size: L37*W20*H70(mm)
  • Voltage: 7.4V
  • Weight: 80g
  • Nominal Capacity: 1800mAh
  • Application: Toy car
  • Capacity: 1800mAh
  • Nominal Voltage: 7.4V
  • Battery type: 18650 Li-ion Battery Cells
  • Cycle life: 800 Times
  • Certification: CE , UL, MSDS, UN38.3
  • Features: High Power Density
  • Color: Blue
  • Warranty: 12 Months
  • Payment: T/T
  • Product Name: 7.4V Li-ion Battery Pack

Packaging & Delivery

Packaging Details As per your demands .
Deep cycle rechargeable li-ion 1800mAh 7.4V 15C battery
Delivery Time Within 5 working days for samples

Deep cycle rechargeable li-ion 1800mAh 7.4V 15C battery 


Product Description



Sairi 7.4 V 1800mAh

Nominal voltage


Nominal capacity(0.2C5A)


Max charge current


Continuous discharge current


Cycle life

500 times

Charge temperature


Discharge temperature


Storage temperature





18(T) x  65(H) mm

Working voltage


Charge cut-off voltage


Discharge cut-off voltage


Protection temperature

70 °C ±5 °C

Output port

connector/plugs or wire


75% for storage




Product Overviews


Related products



1.Electrical and hobby 
2.Emergency power supply, LED light and flashlight. 
3.Consumer applications 
4.Electrical tools 
5.Solar lawn, remote control 
6.Electric vacuum cleanner, electric sweeper  
7.Backup power supply, Medical Device and so on .




Company Information



1. The battery cell is made of 18650 li-ion battery, which is environment and much safer and more stable.

2. The appearance of our rechargeable battery is fashionable

3. We are the manufacturer, with excellent production line, strict quality control.

4. Short leading time is 7-10 days.

5. Accept samples order, OEM & ODM service,eventhough OBM .

6. Professional sales team, will reply all your questions ASAP.

7. We are 100% responsible for our products, customer first !








Our Services

1. Your inquiry related to our products rice will be replied in 24 hours.   

 2. Experienced staffs to answer all your enquires in fluent English.  

 3.We make the OEM and ODM service for more than 5 years, and  accepted Paypal.

 4.Protection of your sales area, ideas of design and all your private information.

 5.No matter big order or small order , we will provide all the best  quality , best service.

 6.If our our products ave any problem that we caused, they will be sent free in the next order.


After sales services 

1.1 year warranty .

2. We will replace the broken parts with new parts in the next in the next order. 

3. Choose the cheapest and safest shipping company .

4. Track the order until you get the goods. 

5. Welcome any feedback and advice for our products.


Extra services

1. MOQ: Sample order is available.

2. OEM: The larger the quantity the cheapper the price.

3. ODM: 10000pcs, keep your design privately. And won’t supply it to others.

4. Provide designed package depends on your needs.


Packaging & Shipping

Packaging: International standard packaging or as customers required

Shipping:   Sample order:3-10 days by plane 
                  Bulk order : 15-30 days by sea
Payment: We accept T/T , Western Union, Paypal, L/C and so on. 
                If you prefer other payment terms,please contact us.





1). How to order  li ion battery?

Send us inquiry--- let us know the order quantity and terminal type,

we will quote best price accordingly. Other cheaper cells available .


2). What kinds of payment methods and price term?

Payment term:  

T/T 30% Deposit to confirm Order & 70% Balance before Shipment,

West Union, Paypal(for sample).

T/T areacceptable      

Delivery term:   EXW,FOB,CIF Shenzhen, Hongkong,etc.  


3). Which shipment available?

Normally, we ship goods by express & air & vessel,

special requirement also acceptable. By express(UPS,DHL.FEDEX,TNT...)

to your door. By sea to your nearest sea port. By air to your nearest air port .


4). May I get free sample?

It depends. If it will be charged, however, the sample fee can be refunded

when you place bulk orders for that item.


5). What warranty can I get?

We have IQC(incoming quality control), PQC(processing quality control),

FQC( Final quality control), QAC(quality assurance control)team.

We guarantee that all orders are tested strictly before shipment.  

Every item comes with our 12-months warranty,

100% satisfaction warranty. However, if you receive any defective goods ,

we can change a new item for you at your next order for free .

Or if you can bear the shipping fee we can do this immediately .

Transaction History of the Supplier

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Transaction Overview


Transaction Details

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Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland)
Transaction Level:
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Supplier's Trade Assurance Limit: US $26,000
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