Sla / Gel battery transport by air

Does anyone have any experience transporting SLA batteries by air ?.
Easyjet, Luton - Belfast specifically.

Nigel. G6SFP.

In reply to G6SFP:

As long as you don’t have one of these connected to it…

then I think you should be ok, even if it is in your hand carried luggage.

I’d put it in the checked in luggage that goes in the hold though.