Exact Yuasa Power Series 30 DIN65LH was fitted to my Volvo and failed after 5 years on a cold morning - we get down to -6DegC here.
Posted my story as it appears relevant to the discussion.
Replaced it with a significantly cheaper ACDelco MF - which was not supplied with a vent tube or a vent plug.
Blackwoods have some ACDelco in their catalogue.
But you can see the vent plugs on both of them in the same place.
The Yuasa was supplied with a vent tube and in the other side can be see a Red plastic filler plug.
Thanks to Bluedolphin18 I realised that my new battery has no vent plug for the spare side.- so I can pinch the one from the old battery.
Pics here - just delete the green banner.
https://app.box.com/s/13z1tgztkc6831hamzk1bj2d2n6yrc7d
New Batteries do have vents. I have not seen a AGM version of this battery - but other AGM do not have obvious vents.
At this stage have not found anything to say that the Yuasa is a EFB version. I fitted 2 of these to the volvo over the 10 years and understood them to be traditional flooded batteries.
Incidentally I am now concerned with the MF because the alternator output stays stable on about 14.2 all the time and that is too much when driving in 44DegC ambient. (even with everything on).
My first ACDelco failed after a year when the green light failed and went to White = Replace.
Blackwoods replaced it under warranty after 1 year.
So I am concerned the Volvo 120amp alternator is slowly cooking the battery. Now that was alright when I could unscrew the yellow tops. (it is 2001 so may not have ECU control of the alternator like the Cruze)
When I get home with the Volvo the float charger quickly gets the battery to float - a few minutes - contrast that with the Cruze below.
Take the example of the 2010 Holden Cruze, when it starts it quickly puts the battery to about 14.4 but after driving for a while it drops battery to about 13V.
Battery is a DIN75LH MF version as its a 2l diesel.
When I get home from driving for about 140km the battery is not fully charged because it takes a few hours for my 1amp float charger to put it up to 14.4 and drop it back to float.
I only do sporadic driving - hence the use of a float charger. Cheaper to have a spare car in the countryside so I don't have to pay in a panic for a mechanic.
By the way - these cars came cheap and convenient at the time. That was the main procurement criteria. So if I see a suitable Skoda I would buy it - assuming you people do not dissuade me about its repairability!