E-bike battery 6-DZM-20 , high rate and deep cycle battery , maintenance free and high capacity , long service life . Storage battery 12V20Ah , high rate and deep cycle battery , maintenance free and high capacity , long service life .Dimension : L181mm*W77mm*H170mmNorminal Volt, 12VCapacity : 20Ah/2hrsApprox. weight : 7KGs Storage battery 12V20Ah