.Meet the relevant national standards and requirements for batteries. .All finished battery products are calibrated and tested before delivery. They can be used directly and normally.This battery is also equipped with a power indicator, and there are three plugs, which are similar to another product on our website. As long as you have specific requirements for the product, you can tell us and let us implement it. We believe that all terms and conditions of employment should be based on an individual's ability to do the job and not based on personal characteristics or beliefs. We provide employees with a working environment free of discrimination, harassment, intimidation, or coercion relating directly or indirectly to race, religion, sexual orientation, political opinion, or disability. We do not use any prison, slave, indentured, or forced labor in the manufacture of any of our products. We do not utilize child labor in the production of any product. We do not employ any person under the age of 15 (or 14 where local law allows), or the age at which compulsory schooling has ended, whichever is greater. 