Jiangxi Better Way New Energy Technology Co., Ltd. is a trusted supplier and factory of high-quality lithium-ion batteries. Our latest product, the 21700 37v battery, comes in 5000mAh, 4500mAh, and 4000mAh variations, making it perfect for a wide range of applications. Our 21700 37v batteries offer excellent performance and are designed to last long. These batteries offer a higher energy density and greater capacity than other similar batteries. With their high discharge rates, they are perfect for use in electric vehicles, power tools, and other industrial applications. At Jiangxi Better Way New Energy Technology Co., Ltd., we take pride in our commitment to quality, and we offer the best quotes for our products. If you are looking for reliable high-quality lithium-ion batteries, then look no further than our 21700 37v batteries. Contact us today for more information and to place your order.