Forum Thread
Shiny Breeding
Forum-Index → Help → Answered → Shiny BreedingIf it states that they get along well, then they'll breed eventually, provided that your PD balance isn't 0. Also, I'm not sure what you're trying to breed, but if you can, you'd want to have a pair that gives you "The two seem to match perfectly." - these will produce the highest amount of eggs! For that, you'll need Pokémon of the opposite gender but same evolutionary stage - for example, two Mareep instead of a Mareep and a Flaaffy - and they'll need to have different OTs also.
As for your radar, you only need a battery if you want the eggs you're gonna adopt to count towards a shiny chain.
.gif above ©Haikyuu!! official anime
Try to leave at least 100 PD (50 PD per Pokémon) to have a random chance to find eggs within an hour..