Which is better, a dry battery or a hydro battery?
I think a dry battery is better.
Advantages of dry batteries:
1. The price is relatively low.
2. The voltage is stable.
Advantages of water batteries:
1. Long battery life.
2. High charging and discharging efficiency.
3. Light.
Summary:
Dry batteries are suitable for situations where voltage is stable and price is sensitive.
The Hydro battery is suitable for occasions requiring high autonomy.