THIS BATTERY IS SHIPPED WITHOUT ACID YOU WILL HAVE TO FIND SOME. MOST AUTO PARTS STORES HAVE IT USUALLY UNDER $4. THE SHIPPING ON ACID IS LIKE $15.00. ANYWAY THIS BATTERY WILL FIT ALL CT90's THRU 1979. WE DO NOT SEND ANY ACID!! fits CT90K0 CM91 and CT200 Length: 3.56" Width: 2.75" Height: 3.94" BAT6N551D @ *STRAP_ON_BATTERY ST90_ALL_YEARS 95012-13001 1/22A (B J/S)ABOUT 4 3/4" OVERALL LENGTH AND 1 3/8" WIDE AT WIRE B_J/S