OEM Service

OEM Service


OEM Service

Guangzhou E-SUN Technology co., LTD. Is a High-tech Enterprise Focusing On The R&D, Production And Sales Of Lithium Batteries Pack. The Factory Covers An Area of 5700 Square Meters, With a Monthly Output of 20 Million (Refer to 12V100Ah Battery). 


The customization process is as follows:

1.Customers deliver concept products and put for wardtheir requirements.

2.CE makes an evaluation about the customizedproducts and arranges the desianers to draw thsketches and drawings.

3.Based on the market evaluation, we make andrevisethe drawings to follow the trend.

4.After completing the design, we will showthe sketches to customers and confirm thesolutions withthem.

5.Once reaching the agreement, we will give thpriciand beain, the cooperation relation shipwith customers.

6.Then, we will manufacture the sample thatcustomers ask for and deliver it to customers.

7.Once customers confirm the sample. CE willstart theprocess of open mold.

8.We will send a trial order to customers in anefficient manner.

9.Customized packing design is available inour company.

10.After everything is prepared, we will startthe mass production.

11.Prompt delivery will be carried out to ensurethe goods delivered to customers as soon aspossible.




Q1:Are you a factory?

A1:yes our are 6 domestic production bases, 2 overseas production bases, and 2 overseas service companies. There are first-level service channels in more than 60 overseas countries and regions. When necessary, door-to-door service can be achieved within 48 hours around the world.


Q2: How to install and use the solar inverter?

A2: We have the English teaching manual and videos; All the videos about every step of machine Disassembly, assembly, operation will be sent to you.


Q3: What if I don't have import experience ?

A3: We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.


Q4:Can you provide the free shipping to sea port ?

A4:Yes, we provide the free shipping to your convenient sea port.If you have agent in China, we can also ship it to them for free.


Q5: How is your technical support?

A5: We provide online service through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you video call anytime, our engineer will also go to oversea help our customers if necessary.


Q6: How can I make sure it's a secure transaction ?

A6: Alibaba can protect buyers' interest, all of our transation will go through alibaba platform.As you do the payment, the money will go directly to Alibaba bank account.After we send your the items and you comfirm the detailed information, Alibaba will release us the money.


Q7: Can you get the the solar inverter customized for us ?

A7: Of course, brand name, machine color, designed unique patterns available for customization.


Q8:What can you provide?

A8:Residential/Home solar system, Rooftop solar power station, Large-scale ground-mounted solar power station,Agriculture-complementary Solar Power Station, Aquaculture-complementary Solar Power Station.

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