AGM batteries have actually the electrolyte soaked up in a glass mat, while Gel batteries have the electrolyte absorbed in silica (sand). It's always better to take pre-emptive action against something, than to react to it after it's happened. In common with CTEK, NOCO have a 5A battery charger and a 10A battery charger. It also decreases the volta

AGM batteries have the electrolyte soaked up in a glass mat, while Gel batteries have the electrolyte soaked up in silica (sand). It's constantly better to take pre-emptive action versus something, than to respond to it after it's happened. In common with CTEK, NOCO have a 5A charger and a 10A charger. It as well decreases the voltage at the start,