Liion Wholesale has expertise in battery packs. We offer a few off the shelf battery packs shown below, or you can talk to our engineering staff about making your own custom battery pack. We can prototype packs here in PA and for high volume manufacturing can handle manufacturing packs in China at our top tier OEM battery pack manufacturers. We can handle all the technical details and quality assurance while you concentrate on your product. We also have lots of experience in the wild world of battery pack certifications like UN38.3, IEC 62133 and UL 1642 just to name a few, and can help make sure your pack is properly certified for what you're doing. Contact us today to take your battery project to fruition!