Fixed telephone service your phone; 15101131989,24 hours; 15101131989 online services; QQ1657344852, we sincerely welcome your calls, your call is our greatest support of the Company sales agent ups battery to ensure genuine original, a penalty at ten , the majority of customers feel comfortable buying (who I sold the brand battery warranty for three years, used in solar systems insurance for one year, with the UPS power system is guaranteed for three years. Remarks: non-human case) you only need a phone! Other things handed down by my company Pioneer technology, creative and pragmatic, customer first "corporate culture," good faith cooperation, and material is really cheap, and technical services "as the business philosophy. Improve the scale of Beijing Keya fly , which include the general manager of the public rooms, administrative department, marketing department, finance department, technology department, service department and Beijing Keya fly all my colleagues enthusiastically learning scientific knowledge, sincere exchanges, polite, positive energetic, positive interaction help and mutual assistance, and vibrant, attractive team to serve customers! Product Description NP series YUASA NP Series battery the Yuasa Company With 80 years of production experience, coupled with continued research, with the trend of the market and the production of batteries, features high-performance, economic maintenance and effort to meet the requirements of customers. Yuasa NP series maintenance free VRLA batteries With the rapid development of electronic technology has been widely used, and the majority of users praise. FEATURES : simple maintenance charging, the most of the oxygen generated inside the battery is plate absorption reduced into the electrolyte, and substantially no electrolyte reduction. holding liquid electrolyte is absorbed in particular separator, to maintain not flow, so even fallen also be used. (fallen more than 90 degrees or more can not be used) excellent safety performance self-discharge due to the extreme overcharge operation errors caused by excessive gas can be released, to prevent the rupture of the battery. minimal special lead-acid alloy production board gate self-discharge control in minimum long life, good battery grid using special lead-calcium alloy good corrosion resistance, special partition at the same time be able to keep the electrolyte, and then at the same time pressed positive plate active material with strong prevented from coming off, so is a long life, the economy of the battery internal resistance is small due to the small resistance, good large-current discharge characteristics after the deep discharge has excellent recovery capacity in case of a long-term discharge capacity does not appear, as long as sufficiently charged, basic reduce, can quickly restore range of applications: communications power supply uninterruptible power supply emergency lights, power system alarm system solar system toy medical equipment