I’ve seen FAQs and troubleshooting pages that say clean the contacts with alcohol, and that works, but I seriously have to do that every time I run it. The only other thing that will work is jamming something under the Roomba to lean it onto the charging contacts. Is it a crappy base? Are there any diy tricks to give the base better contact?
Shouldn’t be the battery. Putting a wedge under the Roomba let’s it charge and it has decent runtime. Problem is that the wedge keeps it from moving so it can’t start or recharge without manual help.