- A
The battery calibration is off and needs to be recalibrated by fully discharging and recharging.
Why wrong: Battery calibration can fix inaccurate charge reporting, but it cannot restore lost capacity. The report shows actual capacity loss, not a reporting error.
- B
A background process is consuming excessive power, draining the battery quickly.
Why wrong: A background process would cause the battery to drain faster, but the full charge capacity would still be near design capacity. The report shows the battery can only hold 12,000 mWh, which is a hardware limit.
- C
The battery has reached the end of its useful life and needs to be replaced.
A full charge capacity of 12,000 mWh versus a design capacity of 50,000 mWh means the battery has lost over 75% of its capacity. This is a clear sign of battery wear and requires replacement.
- D
The laptop's power adapter is not providing enough voltage to charge the battery fully.
Why wrong: A faulty adapter would prevent the battery from charging at all or cause it to charge slowly, but it would not cause the battery to report a reduced full charge capacity. The capacity loss is internal to the battery.
Quick Answer
The answer is that the battery has reached the end of its useful life and needs to be replaced. This conclusion is drawn from the battery report, which shows the full charge capacity has dropped to 12,000 mWh against a design capacity of 50,000 mWh—a degradation of over 75%. In CompTIA A+ Core 1 220-1201 terms, any battery whose full charge capacity falls below 80% of its design capacity is considered worn out and should be replaced, as this is a hardware failure caused by chemical degradation from age, heat, or charge cycles, not a software issue. This question tests your ability to interpret a battery report and distinguish between hardware degradation and power management misconfigurations, a common trap where students might mistakenly suggest calibrating or updating drivers. Remember the 80% rule: if the full charge capacity dips below 80% of design capacity, it’s time for a new battery.
220-1201 Mobile Devices Troubleshooting Practice Question
This 220-1201 practice question tests your understanding of mobile devices troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A user reports that their laptop's battery life has dropped significantly over the past month. The battery now lasts only 30 minutes on a full charge. The technician runs a battery report and finds that the design capacity is 50,000 mWh, but the full charge capacity is only 12,000 mWh. What is the most likely conclusion?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The battery has reached the end of its useful life and needs to be replaced.
The battery report shows a severe reduction in full charge capacity compared to design capacity. This indicates the battery has degraded significantly, likely due to age, heat, or charging cycles. A battery with a full charge capacity below 80% of design capacity is considered worn out and should be replaced. There is no software fix for this hardware degradation.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The battery calibration is off and needs to be recalibrated by fully discharging and recharging.
Why it's wrong here
Battery calibration can fix inaccurate charge reporting, but it cannot restore lost capacity. The report shows actual capacity loss, not a reporting error.
- ✗
A background process is consuming excessive power, draining the battery quickly.
Why it's wrong here
A background process would cause the battery to drain faster, but the full charge capacity would still be near design capacity. The report shows the battery can only hold 12,000 mWh, which is a hardware limit.
- ✓
The battery has reached the end of its useful life and needs to be replaced.
Why this is correct
A full charge capacity of 12,000 mWh versus a design capacity of 50,000 mWh means the battery has lost over 75% of its capacity. This is a clear sign of battery wear and requires replacement.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The laptop's power adapter is not providing enough voltage to charge the battery fully.
Why it's wrong here
A faulty adapter would prevent the battery from charging at all or cause it to charge slowly, but it would not cause the battery to report a reduced full charge capacity. The capacity loss is internal to the battery.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
Battery calibration can fix inaccurate charge reporting, but it cannot restore lost capacity. The report shows actual capacity loss, not a reporting error.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Mobile Devices Troubleshooting — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Devices Troubleshooting — This question tests Mobile Devices Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The battery has reached the end of its useful life and needs to be replaced. — The battery report shows a severe reduction in full charge capacity compared to design capacity. This indicates the battery has degraded significantly, likely due to age, heat, or charging cycles. A battery with a full charge capacity below 80% of design capacity is considered worn out and should be replaced. There is no software fix for this hardware degradation.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 18, 2026
This 220-1201 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1201 exam.
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