Are they still available somewhere?

I never bought from them but I found these online. https://www.batterycentralmall.com/Batteries/TurboStart/Script/S27M_E.html

this one is a little cheaper.
https://www.speedwaymotors.com/TurboStart-S27MRL-AGM-Sealed-1969-74-Mopar-Battery-Red-Cap-960-CCA,43756.html

Thanks.
I found Speedwaymotors too but they say discontinued.

http://www.restorationbattery.com/g27ml.html

http://www.antiqueautobattery.com/index.html They say you can ask for red cap

I just ordered a group 27 red cap from antiue auto battery. They make them when ordered so 3-4 weeks to get it

That´s good to know - thanks hemibeep!

Did your battery come in ? any issues with it ? I need one for our 71 RR

Be sure to get the recommended charger for it, or you will be sorry.

So what is the recommended battery charger you are talking about? I don't see any chargers on there website.

I have to say I never used any Charger on all my Resto sealed batteries and never had problems. If I was stupid enough to work on the car using battery power like doors open or something I would then hook up my 20 year old charger to get the battery back to top shape. Maybe I just had Luck??? Not really a lucky person though.
Ron

If you get a battery from Antique auto battery, they send a sheet with the number on the sheet. They sell them, but you can find them other places also. They were out of the chargers when I bought mine, so I went somewhere else. The charger is made by Odyssey.

I've had my yellow cap battery for 7+ years and my red cap for over 6. Follow their charging instructions and their batteries will last a long time. I've always used my craftsman 10 amp charger when needed during winter storage. DO NOT use a battery tender

Sent email to antiqueautobattery but no reply...

You would probably be better off the old way !!

(330) 480-0755