How many amp hours does this battery hold?

This is only the router. Batteries and charger are sold separately. Link below to Bosch 12v batteries and chargers. Bosch does not currently offer a kit version of this tool with batteries and charger included.toolnut.com/power-tools/cordless-tools/batteries-chargers/batteries.html?manufacturer=Bosch&tn_battery_voltage=12+Vtoolnut.com/power-tools/cordless-tools/batteries-chargers/chargers.html?manufacturer=Bosch&tn_battery_voltage=12+V