I went to charge up my fish finder battery and the charging unit now makes a buzzing sound. I tried for a few hours last night to find a compatible replacement or even a data sheet for something similar that will work.
I'm pretty sure it's called a miniature pcb power relay. What's printed on the top of the little black box is
Shori
S1-12
1A/120VAC
2A/24VDC
Coil: 12VDC
I've found the datasheet for the S2-12 but it doesn't have the same pin configuration, and I'm not 100% sure what this component is really called.