- A
Use a flathead screwdriver to pry the battery out forcefully.
Why wrong: Metal tools can puncture the lithium-ion battery, causing a short circuit, fire, or release of toxic chemicals. This is extremely unsafe.
- B
Apply isopropyl alcohol around the battery edges to weaken the adhesive, then gently pry with a plastic spudger.
Isopropyl alcohol safely dissolves the adhesive without damaging the battery or laptop. A plastic spudger prevents punctures.
- C
Heat the battery with a heat gun to soften the adhesive.
Why wrong: Excessive heat can damage the battery and cause it to swell or catch fire. Heat guns are too intense for this application.
- D
Use a suction cup to pull the battery straight up.
Why wrong: Suction cups are ineffective on glued batteries and may not provide enough force. They also risk damaging the battery casing.
Safe Removal of Glued Laptop Battery
This 220-1201 practice question tests your understanding of mobile device hardware servicing. 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 technician is replacing the battery in a slim laptop where the battery is glued inside the chassis. After removing the bottom cover, the technician sees the battery is firmly attached with adhesive. What is the safest method to remove the battery without damaging the laptop?
Quick Answer
The answer is to apply isopropyl alcohol around the battery edges to weaken the adhesive, then gently pry with a plastic spudger. This method is correct because isopropyl alcohol chemically dissolves the glue without conducting electricity or reacting dangerously with lithium-ion cells, while a plastic spudger prevents short circuits and avoids puncturing the battery casing. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your knowledge of safe battery removal procedures in ultra-slim laptops, where manufacturers often use permanent adhesive instead of screws. A common trap is reaching for a metal pry tool or screwdriver, which can easily puncture the battery and cause a fire or chemical leak. Remember the memory tip: “Alcohol and plastic—never metal and drastic.” This ensures you weaken the bond safely without risking the laptop’s chassis or your own safety.
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
Apply isopropyl alcohol around the battery edges to weaken the adhesive, then gently pry with a plastic spudger.
Option B is correct because isopropyl alcohol (90% or higher) safely weakens the adhesive bond without damaging the battery or surrounding components. Using a plastic spudger to gently pry after applying alcohol minimizes the risk of puncturing the lithium-ion battery, which could cause a fire or chemical leak. This method is the industry-recommended approach for glued-in batteries in slim laptops.
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.
- ✗
Use a flathead screwdriver to pry the battery out forcefully.
Why it's wrong here
Metal tools can puncture the lithium-ion battery, causing a short circuit, fire, or release of toxic chemicals. This is extremely unsafe.
- ✓
Apply isopropyl alcohol around the battery edges to weaken the adhesive, then gently pry with a plastic spudger.
Why this is correct
Isopropyl alcohol safely dissolves the adhesive without damaging the battery or laptop. A plastic spudger prevents punctures.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Heat the battery with a heat gun to soften the adhesive.
Why it's wrong here
Excessive heat can damage the battery and cause it to swell or catch fire. Heat guns are too intense for this application.
- ✗
Use a suction cup to pull the battery straight up.
Why it's wrong here
Suction cups are ineffective on glued batteries and may not provide enough force. They also risk damaging the battery casing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think heat is safe because it works for other adhesives, but CompTIA tests the specific danger of thermal runaway in lithium-ion batteries, making heat a hazardous choice.
Detailed technical explanation
How to think about this question
Lithium-ion polymer batteries in ultra-slim laptops are often glued to the chassis to save space and prevent movement. Isopropyl alcohol works by dissolving the acrylic-based adhesive without conducting electricity, reducing the risk of short circuits. In real-world scenarios, technicians also use plastic opening picks and dental floss to saw through stubborn adhesive after applying alcohol, ensuring even pressure distribution.
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.
TExam Day Tips
- 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
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Device Hardware Servicing — This question tests Mobile Device Hardware Servicing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Apply isopropyl alcohol around the battery edges to weaken the adhesive, then gently pry with a plastic spudger. — Option B is correct because isopropyl alcohol (90% or higher) safely weakens the adhesive bond without damaging the battery or surrounding components. Using a plastic spudger to gently pry after applying alcohol minimizes the risk of puncturing the lithium-ion battery, which could cause a fire or chemical leak. This method is the industry-recommended approach for glued-in batteries in slim laptops.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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