Electric field marking trolley with spray battery, for non-toxic liquid paints to be diluted in water, for lawns. The field marker trolley is composed of: tubular steel body painted with polyester powders, blue white color, this product is lead-free and reflects the current environmental anti-pollution legislation, equipped with three pneumatic wheels diameter mm.260, electro-pump unit with membranes, with two speeds, maximum pressure 2.7 bar, maximum flow rate 1.9 Lt./min, rechargeable battery 12 V DC / 2.5A (full recharge cycle duration 12 hours, autonomy with one charge about 4-5 football fields ), battery charger supplied (input voltage 230V / 50 HZ, output voltage 12 V DC / 500 mA). Noise; LWA less than 70 db EN ISO 3744 / (does not require any operator acoustic protection), paint tank, in polyethylene with capacity Lt. 18, spray group with brass jet adjustable in height, side marking group adjustable from Cm. 0 to Cm. 20 in galvanized steel. Weight of the empty trolley Kg. 20.