Beginning in 2006, GrandPower Technology Co. expanding domestic and international markets, and directly involved in the standard large number of domestic and international telecommunications business development and product testing.

    During testing, the SUM series of communications power battery monitoring system because the test data is accurate, and high accuracy to capture the faulty battery, get a good evaluation of the company's tests.

    As of 2009, GrandPower battery monitoring system in China Mobile, China Unicom, Korea Telecom KT, South Korea's LG Telecom, BSNL, Airtel and many other telecommunications companies were certified or tested.

     Test results show that GrandPower cell monitoring system is fully capable of reliably pick out the early failure of the battery, the battery aging, can effectively protect the safe operation and maintenance of the battery system saves costs