So why wouldn’t Ring put them in all doorbell kits? I got my other daughter a Ring2 & looking over parts pkg. & on line instructions it says it’s hardwired which I took as it will charge itself when hooked to a old school doorbell. Now I’m reading on this forum that it kind of charges when hooked up?? I think I read 10% trickle charge? I would think that should be mentioned in the directions & worded as such to avoid a lot of confusion from your customers. Also mentioned on forum by you that a second battery would be required for operation while charging the original…so why not just sell it with 2 batteries??? I don’t think people would care if it cost a little more up front rather than to find out when they charge their battery the unit is down until it’s charged. Just my opinion