Throughout the evolution of the VRLA battery, many
excursions from 100% microglass separator have been
investigated. The benefits imparted by the microglass separators
have repeatedly proven to be of more value than the
attributes realized by other materials.
Separator selection must be considered as part of a
system approach in a VRLA battery.
A high group compression is needed for improved
performance, and with such compression, the battery case
may become the weak link in the system