Sercive Tips


Over 5 years, we pride ourselves on using only the highest quality cells to make lithium battery packs.
Currently we accept customizations of Li-ion battery/pack, Li-polymer battery/pack, Li-prismatic battery/pack and LiFePo4 battery/pack from small to big dimensions, but only use corresponding cells on sale to make sure every pack manufactured by EVVA has top quality.
1) Send us your detailed requirements, including Voltage/Capacity/Charge & Discharge Current /Dimension/Connectors/Artwork.... etc;
2) We will give you solution/solutions after estimation;
3) Price, quantity, payment confirmation;
4) Sample approval;
5) Mass production.
Yes, all of our products are brand new, we never sell second hand items. With a specialized quality control system, each product has been tested as “verified". To know how we make an excellent battery/pack, please refer to “About US -> Factory Tour".
1) There are 2 ways to place an order from EVVA Technology. Contact us by online message, you can leave message at “CONTACT US -> Feedback -> Inquiry” 2) Contact us by email: