You can find cheap protected cells on sites like aliexpress/banggood using Panasonic cells for example. But what do we know about the protection circuit? Could it be that some of these cells are cheap because the circuit is junk? Has anyone seen good data on these protection circuits tested or examined for quality? I know people have opinions or their own experience but I wonder if solid data exists.
I have some Keeppower cells which use Japanese IC but who knows if that's any good either. Anyway it's an important component because let's say it were junk quality plus you charge it with a $2 charger from banggood, that could equal kaboom.
I have some Keeppower cells which use Japanese IC but who knows if that's any good either. Anyway it's an important component because let's say it were junk quality plus you charge it with a $2 charger from banggood, that could equal kaboom.