AGM gel car battery for 12V18Ah battery. Gel battery is a type of lead-acid battery with gel electrolyte made by mixing sulphuric acid with silicon dioxide. Ideal for battery-powered vehicles, electric toys and many other 12 V devices. It is completely safe and sealed so no electrolyte leaks and no upright position is required during use. Technical data: - Voltage 12 V - Capacity 18 Ah - Maximum charging current: 4.5 A - Self-discharge: 2-3 % per month at 25 °C - Dimensions: 16.7 cm x 18.1 cm x 7.7 cm - Capacity (40 °C): 102 % - Capacity (25 °C): 100 % - Capacity (0 °C): 85 % - Capacity (-15 °C): 65 % - Buffer charge: 13.5 - 13.8 V - Cyclic charge: 14.4 - 14.7 V - Internal resistance (25 °C): 15 mΩ fully charged Applications: - Electric vehicles and toys - Medical devices - Cash registers and fiscal printers - Mobile devices (wheelchairs, forklifts, golf) - Emergency lighting - Alarm systems - Scooters, mopeds - Telecommunication systems - Photovoltaic devices Battery dimensions: 16.7 cm x 18.1 cm 7.7 cm.