The AG3 battery is common to the AG33.
The AG33 button battery
is the same model as the LR44 battery, and the AG30 button battery and
LR1130 battery are also the same model, but the button battery has more
names.
These two are the same series of button batteries, both of
which are zinc-manganese button batteries. Each model is divided into
mercury-free and low-mercury, that is, environmental protection and
non-environmental protection, which are related to export. In fact, the
difference is not very big when used. If it is not exported, low mercury
is also OK, depending on the requirements of each product.