I've had LED accent lights on a few bikes. Even when turned off, it's not uncommon for them to have a slight parasitic drain.
If that's your problem, you can either re-wire them to an ignition switched power source or simply hook a battery tender up if you won't be riding for a while.
In my experience, an otherwise healthy electrical system + healthy battery + LED parasitic drain can go a couple weeks of non-riding before you get issues with the battery level (that is, a couple of weeks before you need to hook up the battery tender). But that'll vary of course. Best solution is the ignition switched wiring.
I've also had 2 different wireless phone chargers on 2 different bikes. Both of those chargers had in-line "off" switches, and BOTH still had parasitic drain even of switched off! These were reputable brand chargers, not knock-offs. Options were the same as above.