Product Model:MSK440 dimensions(mm):197X170X342.5 voltage(V):2 weight(lbs):65.3 Precautions: LONG battery is charged before leaving the factory. Do not attempt to disassemble the battery to avoid danger. If the battery case is accidentally damaged and comes into contact with acid, please rinse with plenty of water immediately, and seek medical attention immediately if necessary. Do not use the battery in a sealed environment, otherwise there will be a danger of explosion. Do not use organic solvents to clean the battery, otherwise the casing will be damaged. Multiple batteries can be connected in series to obtain high voltage, and insulating tools should be used during installation to prevent clicks. ¡El nut should be tightened during installation to prevent sparks or even explosions during charging and discharging.