Check the voltage before you put it on the car, if it's less than 12.7 then put it on charge first. They don't always get sent with a full charge
funny enough learnt that lesson some years back, fitted a new battery thinking that would resolve the issue, checked it and was at 12 Vdc , so indeed from then on always charged them before hand , plus on mine I always charge mine via the 12s towing socket , so much easier than messing around as don’t have to lift the bonnet , lol