Gotchu.
I’ve acquired 3 now. Every time they go on sale, like now, I smash buy another.
Discussion
https://www.amazon.com/ECO-WORTHY-12V-280Ah-2Pack-Phosphate/dp/B0CKT2J3M9/ref=asc_df_B0CKT2J3M9t
I raise you double (even the 4x if you have the1.5k laying around)