

I am using this charger https://www.liitokala.com.cn/charger/LiitoKala-Charger/324.html it is a few $ on AliExpress, it is USB-C and can basically charge anything, it exists in 1 channel or 4 channels too. For AA batteries I am using IKEA LADDA, made in Japan, by Eneloop.
not enough digits for md5, could be sha1 yes