the whole production chain from lead plates to lead acid batteries, SPK has researched and manufactured VRLA Battery, GEL battery, Traction Battery, etc, including PS series, PK series, PL series, long life series, deep cycle series and high rate series, with more than 200 models including 2V, 4V, 6V, 12V, and the rated capacity from 0.5AH to 3000AH. All the performances have met the Standards: GB, JISC, IEC, DIN and BS. All the products are UL, CE, ISO9001:2000, TLC and ANATEL certified and widely used in UPS, EPS, security system, solar system, wind generating system, toys, electric vehicle, emergency lighting system, etc and in the fields of telecom system, power system, coal mines, national defense, railway, bank, marine equipment, etc.