Yes, but they are very small, and carefully built so that they can take the amount of off gassing that they do over their lifetime. The amount of power needed by a pacemaker is minimal.
There is an entire other discussion that includes them.
Yes, but they are very small, and carefully built so that they can take the amount of off gassing that they do over their lifetime. The amount of power needed by a pacemaker is minimal.
There is an entire other discussion that includes them.