In AGM batteries, the electrolyte (mixture of water and sulphuric acid) is largely absorbed in glass fibre. This type of battery is entirely maintenance-free and there is no gas formation with normal use. Not requiring any ventilation, these batteries can be installed anywhere.
Their construction gives a very fast discharge at very high currents so AGM batteries are ideal for systems that require high currents (for instance when starting an engine). The battery poles can be unscrewed and this type of battery can be combined with every standard battery terminal.
|Nominal battery voltage||12 V|
|Nominal battery capacity C20 (battery capacity at a discharge time of 20 hours, till 10.5 V per battery)||55 Ah|
|Max. charge current||15.3 A|
|Max. outer dimensions (incl. terminals/grip handles), lxwxh||
257 x 132 x 200 mm
10.1 x 5.2 x 7.9 inch
|CCA to DIN||250 A|
|CCA to SAE||400 A|
Discharge characteristics for battery model AGM12/55
Instructions for the safe handling of Mastervolt gel and AGM batteries (MSDS)
Users manual AGM Battery, models 12/55, 12/70, 12/90, 12/130, 12/160, 12/225, 12/270 (English,...