Shenzhen li-ion 7.4v 4000mah battery / 4000mah li-ion 18650 battery pack

7.4v battery pack 's other capacity : 5000mAh, 6000mAh, 7000mAh, 8000mAh...10,000mAh...

Single battery cell models are in stock 

ICR07300.  ICR08240,  ICR08300, ICR08350,  ICR08400,  ICR08600,  ICR10160, ICR10180, ICR10220,  

ICR10250,ICR10300, ICR10440,  ICR12300J, ICR13490, ICR14250. ICR14280, ICR14430,  ICR14500, 

ICR14650,  ICR16340, ICR17280. ICR17305,   ICR17335, ICR17360, ICR17500,  ICR17650,  ICR17670, 

ICR18490, ICR18500, ICR18650,   ICR26650.

Customized battery packs are also available 

Our brand is ATP. We promise we will offer best product and best price.

If you have any questions, please don't hesitate to contact me. We will offer quick reponse to your inquiries within 24 hours. Tel:0086-0755 28890110 Mobile: 0086-13430431797 This is Penny.

Picture Show for 4000mah li-ion 18650 battery pack

li-ion 7.4v 4000mah battery

18650 4000mah

• Standard export packaging; Any OEM or ODM package is welcome.

• Any method of shipping is welcome; we have a long-term cooperation with Fedex, EMS, UPS, DHL, TNT; if you don't have a forwarder in China, we can share the best price from our forwarder with you.

• High energy density...........battery energy density can reach 420 Wh/kg

• Guaranteed Quality...........Less then 0.1%~0.3% repair rate for different products 

  Long-Term Warranty.........up to 3 years according to different type

  Table operating voltage: excellent satbility on the high voltage plaform where the voltage is almost unchanged; the output capacity is still more than 90%

• Product good consistency

• Certificate through..............CE, ROHS, FCC & UN38.3, MSDS

    Shenzhen Transtar Electronic Technology Co., Ltd. is a high-tech enterprise specialized in the R&D, production, sales and services of all kinds of Lithum-ion Batteries. The company has been focusing on the application and industrialization of the New Materials in Green Energy. We have four main materials series including lithium cobalt oxide, lithium manganate, ternary cathode materials, lithium iron phosphate. So far we have produced five major series of batteries with more than hundreds of models, including cylindrical battery, prismatic battery, polymer battery, power battery and Photovoltaic battery, whose applications cover a wide range of personal electronic consumer products, power tools, transportation, energy storage system and so on.

Q1: How long will it take for samples?

Re: 3-7 days in general. Some models have goods in stock.

Q2: Do your batteries have memory effect?

Re: Li-ion batteries don't have the memory effect.

Q3: What about your battery' s cycle life?

Re: By the ordinary standards, most batteries can cycle over 500 times, but our battery can cycle over 1000 times. 

Q4: What certificates do you have?
Re: We have CE/FCC/ROHS/UN38.3/MSDS

Shenzhen li-ion 7.4v 4000mah battery / 4000mah li-ion 18650 battery pack