I can't find replacement batteries for the Spark. My spark went into cold storage during covid, during which time all the batteries irreparably self-discharged.

I can't find replacement batteries for the Spark. My spark went into cold storage during covid, during which time all the batteries irreparably self-discharged. I'm hesitant to buy another DJI for the reasons above but I haven't seen any non DJI products that wow me. I guess it's a toss up between the FPV and the mini 4.