I grew up to see my neighbours dry their battery(dry cell) with the belief that the battery will recharge. Sometimes this whole stuffs worked while sometimes it fails.
I'm happy for science and technology that doesn't just assume things but gives fact with proves and explanations.
First of all dry cell can't be recharged, the reason or who gave the idea that it can be recharged when exposed to sunlight remains a mystery.
I THROW THIS QUESTION TO ALL THE SCIENTISTS IN THIS FORUM, IS IT REALLY POSSIBLE FOR A DRY CELL BATTERY TO BE RECHARGED WHEN EXPOSED TO SUNLIGHT? Back your answers up with proves and scientific explanations.
The world is upgrading before we go somewhere and practice something people will be wondering which bush we came from.
Knowledge is power......

Sundry dry cell bar3 is to ensure that the bar3 remain dry, so it woundnt met. Not necessary to recharge it.