GS SPECTRA uses a special paste and separator design, combining MF Double Sealed battery technology with a hybrid battery technology that can be added with electrolytes for extended life time. GS SPECTRA Strong Points: - High Quality Material - High Density Paste with Special Additive - Special Separator with Glassmat to reduce water loss - Special Plate Design - Labyrinth Design to condensate electrolyte - Possible to add electrolyte (If Needed) - High Capacity Battery