It would be good, if SFR support charge items in curios slots, not only in inventory.
How to reproduce:
MC version 1.20.1
Forge version 41.1.76 (NeoForge)
SolarFluxReborn 20.1.2
curios-forge 5.3.1
Use Solar Panel V with Dispersive Upgrade
Use Wireless Universal Grid (see https://www.curseforge.com/minecraft/mc-mods/universal-grid)
If Grid is in inventory, it recharges; if grid is in the Back curios slot, then not.

thank you :)

Done.

This is a good idea, will implement it with next build of HammerLib.

The 1.20.1 binary can be obtained from Modrinth https://modrinth.com/mod/hammer-lib/version/20.1.14

yes, it works, thank you