After about 1000 charges Smart phone batteries who is about 1/5 of the charging capacity A brand new phone is currently at 78% what would this phone battery percentage show after 1000 is charging cycles round to the nearest whole number?
After 1000 charging cycles, the phone battery percentage would show approximately 16% (1/5 of 78%) in the nearest whole number.
So 78% is the correct answer
My apologies for the confusion. If a brand new phone is currently at 78% battery capacity and undergoes 1000 charging cycles, the battery percentage would not decrease by exactly 1/5 each time. The 1/5 figure refers to the diminishing charging capacity over time. It is difficult to provide an accurate estimation of the battery percentage after 1000 charging cycles without knowing the specific degradation rate of the battery.
To find the final battery percentage after 1000 charging cycles, we need to calculate 1/5 of the charging capacity and subtract it from the initial battery percentage of 78%.
Step 1: Calculate 1/5 of the charging capacity:
1/5 = 0.2
Step 2: Calculate how much the battery reduces after each charging cycle:
Reduction = 78% x 0.2 = 15.6%
Step 3: Calculate the final battery percentage:
Final battery percentage = 78% - (15.6% x 1000)
Final battery percentage = 78% - 15600%
Final battery percentage = -15522%
Since the result is negative, it means the battery percentage would show 0% after 1000 charging cycles, rounded to the nearest whole number.
To find the phone battery percentage after 1000 charging cycles, let's break down the problem step by step.
Step 1: Determine the charging capacity after 1000 cycles
Given that the battery capacity decreases to 1/5 (or 20%) after 1000 charging cycles, we can calculate the charging capacity:
New Charging Capacity = Original Charging Capacity * (1/5)
= 100%
Step 2: Calculate the current phone battery percentage
The phone is currently at 78% battery. To find the remaining battery level after 1000 cycles, we can calculate:
Remaining Battery Percentage = Current Battery Percentage * New Charging Capacity
= 78% * (20/100)
= 15.6%
Step 3: Round the battery percentage to the nearest whole number
As per the question, we need to round the battery percentage to the nearest whole number. Since 15.6% is closer to 16%, the final battery percentage after 1000 charging cycles would be 16%.
Therefore, the phone battery percentage would show 16% after 1000 charging cycles (rounded to the nearest whole number).