rechargeable lithium batteries-tesla powerwall is the 'chosen representative' of GSL GROUP Limited. By digging into the industry dynamics and market trends, our designers keep innovating ideas, designing the prototype, and then screening out the best product design. In this way, the product has a very competitive compact design. To bring an excellent user experience, we carry out millions of tests on the product to make it stable in its performance and be of long lifespan. It proves to be not only in line with the aesthetic taste of consumers but also satisfy their actual needs.. Our products have made GSL ENERGY to be the pioneer in the industry. By following up the market trends and analyzing the customer feedback, we constantly improve the quality of our products and update the functions. And our products are becoming more and more popular for its enhanced performance. It directly results in the growing sales of the products and helps us to win a broader recognition.. With regard to our after-sale service, we are proud of what we have been doing for these years. At GSL ENERGY, we have a full package of service for products like the above-mentioned rechargeable lithium batteries-tesla powerwall. Custom service is also included..