Homemade replication battery

This is a replica of the Alessandro Volta's battery, Italian inventor 1799.I made it to have an electrical item beautiful and curious to see and at the same time working.The electrical part is made up of 22 copper discs, 22 discs of pure zinc, 22 felt discs of cotton and a solution of sulfuric acid diluted to 5%. Each cell produces a voltage of 0.8-0.9 volts. The battery power is increased by an external battery charger with 25-28 volts. The battery must be charged for at least 30 minutes to have enough current to make some lab experiment.
The duration of the battery charge is proportional to the discharge test you want to do.
Music, Mozart Night Music.