Thomann 9V 6LR

I've bought several of these, I've put them on pedals and on my active bass, the truth is they don't last much, about 60% the time an "Energizer" lasts and they die quite slowly (that's not the way most Alkaline batteries work) so my bass started sounding weaker and softer so gradually that I wasn't sure if it was all in my head, it had to, because the battery was only 3 months in the bass.
So I went and bought new strings and that's when I realized it was the battery...

So, for me yes, it seems like a cheap alternative but I'd need twice as many, so it's actually not that cheap, plus I can't rely on these with the way they die.
I now use them for starving the power input of analog pedals for certain sounds on recordings.