Replaceable battery while travelling for wireless split keyboards? - Lemmy.world

Hi folks. I’m trying to find a good way to mount the batteries for a wireless split keyboard such that battery replacements can be done easily while travelling internationally. As someone who’s now stuck with a dying LiPo battery directly soldered to my nice!nano while travelling, I’m struggling to find battery replacement options that are NOT online orders. Most local shops don’t have the 3.7V thin-ish LiPos that I often see in wireless splits, and the language barrier certainly makes finding things more difficult. So, with this in mind, I’m thinking of making a dedicated battery slot for each half that could fit a rechargeable AA or AAA-sized LiPo, which can be easily bought from shops at the airport or shopping mall. However, I’m unsure if any additional circuit or component is required for those AA/AAA-sized LiPos to work with a split keyboard (in terms of voltage). Has anyone tried to use such batteries for your split keyboards, or have seen a project that uses them? Also, if not AA/AAA-sized LiPos, what battery types would you suggest for this scenario? (Photo from: https://www.dnkpower.com/lithium-polymer-battery-guide/ [https://www.dnkpower.com/lithium-polymer-battery-guide/])