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 sales@gsl-energy.com     0086 13923720280

OEM Service

GSL has been concentrated on manufacturing advanced lithium batteries for over 16 years. Since founded, we have been offering professional R&D capability, patented design, and rich manufacturing experience in designing,

developing, manufacturing, and customizing the lithium batteries

Customers deliver concept products and put forward their requirements.

GSL makes an evaluation about the customized products and arranges the designers to draw the sketches and drawings.

Based on the market evaluation, we make and revise the drawings to follow the trend.

After completing the design, we will show the sketches to customers and confirm the solutions with them.

Once reaching the agreement, we will give the pricing and begin the cooperation relationship with customers.

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

Once customers confirm the sample, GSL will start the process of open mold.

We will send a trial order to customers in an efficient manner.

Customized packing design is available in our company.

After everything is prepared, we will start the mass production.

 Prompt delivery will be carried out to ensure the goods delivered to customers as soon as possible.

At GSL, we clearly know the lithium battery industry will be fuelled by the quality and innovation in the future. That's why we put high values and massive funds into R&D and innovation. Our patented products are our best guarantee for customers. GSL always strives to provide innovative solutions for better satisfying customers' specific needs.
GSL has strict quality control procedures to ensure the product to function safely and competitively. The materials are carefully inspected and chosen. Our QC team will follow up carefully each product at the assembly line and conduct aging tests for over 24.5 hours. As a professional lithium battery provider, GSL's products are certified under IEC, TUV, UL, CE, UN38.3, and MSDS.
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SUPERIOR SERVICE IS MADE
BY VERTICAL INTEGRATION PLATFORM

We will serve you the best products with the favorite prices Subtitle Description

 Service Tel: +86-755-84515360
 Address: A602, Tianan Cyber Park, Huangge North Road, Longgang District, Shenzhen, China
GSL ENERGY - A leader of green energy provider in china since 2011

0086 13923720280

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