I dont think so. Most people just put the battery on charge until the charger says its full. Maybe the charger is balancing the cells, but i have my doubts.
Could always do a check with your multimeter to see if it is.
BMS boards can be very small for the currents demanded by HTs. I'd br surprised if they're not integrated into the packs, even if there's only two contacts.
As to if our HT batteries are... I don't know! I haven't seen a teardown of a Yeasu SBR-24LI but maybe I'll tear mine down when it kicks the bucket.
A Lemmy Community to share links about and for amateur (ham) radio to advance the technology, and promote communication and international goodwill. This community IS NOT for CB, GMRS, MURS, FRS, etc topics unless they are related to ham radio in some way.
We won't tolerate personal insults, illegal activity, or anything contrary to good amateur practice.
If asking questions about regulations, please include your country because we recognize that, while the hobby is international, regulations often aren't.