The Baghdad battery is way older.,(reply>), The artifacts do not form a useful battery for several reasons:<br><br>Gas is evolved at an iron/copper/electrolyte junction. Bubbles form a partial insulation of the electrode. Thus the battery's functionality decreases the more it is used.<br>Although several volts can be produced by connecting batteries in series, the voltage generated by iron/copper/electrolyte cell is below 1 volt.,(reply>), oldest as in "longest lived" not "earliest",(reply>), But they said many many times "world's oldest battery",(reply>), and yet the baghdad isn't still working. They are saying it has been running for 176 years, not when it was invented.