Topic: What is the best way to keep the battery of the joy cons in good condition?

I have a pro controller, and I won't use the joy cons in a very long time.

1- should I leave the joy cons attached to the swicth in the dock? i know when the battery is full it stops receiving charge, but the joy cons loses some energy with the time and the charger will be constantly working to keep the chargue at 100%.

2- or just just keep the joy cons apart and let them lose their energy?

@Jpmr77 I'm in the same boat. That's a good question. I thought joycons use Li-ion (lithium ion) batteries, but I don't see it labeled on the joycons (maybe i missed it?). If they use lithium ion batteries, I can guess what the recommendation is based on managing cellphone batteries, but I don't want to clutter the thread. So, I'm going to look around, to see what I can find.

I read a scientific article that says that Li-ion batteries are better kept between 65 and 75% but keeping them at 100% isn't bad if the charger stops charging them when they are full and all the current decent chargers do that. I don't know if the joy-cons batteries are Li-on though and I have the Switch Lite.

@Woomy_NNYes in the nintendo support page only says ´´Make sure to charge products with built-in batteries at least once every six months. If the batteries are not used for an extended period of time, it may become impossible to charge them.´´

six months it's too much to keep the joycons without energy, if you stop using the joy cons in 2 months or less, you literally run out of battery, if you press the buttons, the indicator light no longer appears, so I think the joy cons are more affected by running out of battery.

but keeping the joy cons in constant charge at 100% energy I don't know if it's good for the batteries

@Jpmr77 that 6 months bit is a nice piece of info. Nice work. Yeah, i keep a set of joycons in a drawer, and they run down because it's my spare set. They likely use Li-ion, and everything you said is accurate.

I'm sketchy on keeping batteries topped off, too. @BlueOcean, above, might be accurate. I think that's what I've heard.

Because it's a public thread, I'll explain for anyone that may not know, if they are Li-ion batteries, charging from dead to full generates the most heat & battery degradation. So, to prolong the life of your battery, that's why it's commonly said to try to keep them between roughly 30-70%, to minimize the charge session heat.

Side note, upon seeing your thread, @Jpmr77, i wasn't sure how far we'd get finding good info, so i sent a msg to Nintendo Life saying, it might make for a decent article, if they can get official info regarding joycon batteries. I sited your username & the thread to give you credit. I hope that's ok. Who knows if they'll do it, but i think it's a question most such owners have wondered.

@Woomy_NNYes
From Wikipedia it says “Joy-Con contain non-removable 3.7 volt 525 mAh 1.9 watt hour lithium-ion polymer batteries”
https://en.wikipedia.org/wiki/Joy-Con

And i agree...an article on this would be great. I've seem lots of different articles on charging. I guess it also depends on the batt size.

Found this article also in Wikipedia about lit-batts, but not bedtime reading!
https://en.wikipedia.org/wiki/Lithium-ion_battery#Battery_life

Damn. Nice work, @nzretro ! - confirming Li-ion.

@Woomy_NNYes
Thanks. Its amazing what’s on this intrawebby thing.

Yes, it would make a very useful article and yes, Li-iom batteries should always be full rather than empty, especially considering the fact that modern chargers don't overcharge batteries.

I remember when charging the original 3DS the charger gradually reduced the power output the fuller the battery was and I know this because I used a device (that I still have) between the charger and the socket that measures power consumption. Even chargers as old as the original 3DS has this safety measure, the Switch and the Switch charger do this too.

Oh, very cool, @BlueOcean .