Important to note that Lead Crystal/LC and Silicon Dioxide/SiO2 are trade names for the same battery product, since many reviews refer to them as Lead Crystal only.
Most of these reviews are from Australia and tropical regions, where the higher heat tolerance has lead to early adoption of this technology. The high performance of these batteries in sub-freezing conditions has made them more popular in North America in recent years.
This technology was originally developed in the late 1970’s, but had low power density. By 2009, the improvements in materials technology made it possible for these batteries to achieve higher power output and density, so that they could reach their potential with great improvement over lead-acid batteries.
The general technical guide for Lead Crystal batteries and technology