The epithelium is the corneaâs outermost layer. Its primary functions are to: 1  block the passage into the eye of foreign material, such as dust, water, and bacteriaÍ¾ and.  provide a smooth surface to absorb oxygen and nutrients from tears, which are then distributed to the other layers of the cornea.
On average a camera battery will charge in 1-6 hours, depending on the battery and the charge it will hold.Sometimes, it can depend on where you are charging it also. For more info, refer to your owners manual for your camera, or your battery if it was purchased seperately. if you have 6 batteries in a 36 volt system, and you use a 20 amp charger it could   take up to 5 1/2 hours (depending on â¦ the state of charge of your batteries when   you begin the charge).
Best Answer: Depending on the charger, you may only be charging at 2A for the last 4 hours. But if you had discharged the battery say 60% used, leaving 40% in the battery, It would charge at 10 Amps for 4-5 hours.but as it reaches 85% most Automatic chargers cut back to 2 amps or so and take several hours to top up.At that point it will shutoff or stay at the trickle rate. Check the spec. on your charger.ut if you had discharged the battery say 60% used, leaving 40% in the battery, It would charge at 10 Amps for 4-5 hours. but as it reaches 85% most Automatic chargers cut back to 2 amps or so and take several hours to top up.