A secondary battery including a cap assembly, the cap assembly including a cap plate having an electrolyte injection hole. The parties communicate and agree upon a negotiation protocol before commencing the negotiation in a meta contract that is formed to govern or control the negotiation process. This allows clock synchronization and skew adjustment circuits to be implemented in an optimized manner that exhibits a reduced overall circuit size and power consumption, while having improved lock characteristics over a wide range of frequencies. A valve member is movable to controllably urge the diaphragm into and out of engagement with the seat member to control flow of fluid between the first the first and second channel. In alternate embodiments two or more algorithms are processes concurrently. The transmitting station transmits redundant sets of data on each of a number of different tones.