Alcohol is not what I would use as it won’t cut through the battery corrosion. What you need is white vinegar use a cotton swab (Q-Tip) dipped in the vinegar and hold it against the contacts. You also need to flush the vinegar with water using the same approach using a wet cotton swab. The bottom contact has a spring to push it up to make contact to the battery if this is not working you’ll need to replace the battery holder. Its a bit of work! Its not something I would recommend for a first timer as its a delicate job. Here’s the [http://jameskbeard.com/Photography/Legacy_Canon_Manuals/CANON%20A%20-%20SERIES%20CAMERAS/A-1%20Camera%20Service%20&%20Repair%20Guide_z.pdf|Canon A-1 service manual] jump down to the exploded views at the end there you’ll see whats involved to get to it. You basically need to take the whole camera apart.
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Alcohol is not what I would use as it won’t cut through the battery corrosion. What you need is white vinegar use a cotton swab (Q-Tip) dipped in the vinegar and hold it against the contacts. You also need to flush the vinegar with water using the same approach using a wet cotton swab.
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The bottom contact has a spring to push it up to make contact to the battery if this is not working you’ll need to replace the battery holder. Its a bit of work! Its not something I would recommend for a first timer as its a delicate job. Here’s the [http://jameskbeard.com/Photography/Legacy_Canon_Manuals/CANON%20A%20-%20SERIES%20CAMERAS/A-1%20Camera%20Service%20&%20Repair%20Guide_z.pdf|Canon A-1 service manual] jump down to the exploded views at the end there you’ll see whats involved to get to it. You basically need to take the whole camera apart.
Alcohol is not what I would use as it won’t cut through the battery corrosion. What you need is white vinegar use a cotton swab (Q-Tip) dipped in the vinegar and hold it against the contacts. You also need to flush the vinegar with water using the same approach using a wet cotton swab. The bottom contact has a spring to push it up to make contact to the battery if this is not working you’ll need to replace the battery holder. Its a bit of work! Its not something I would recommend for a first timer as its a delicate job. Here’s the [http://jameskbeard.com/Photography/Legacy_Canon_Manuals/CANON%20A%20-%20SERIES%20CAMERAS/A-1%20Camera%20Service%20&%20Repair%20Guide_z.pdf|Canon A-1 service manual] jump down to the exploded views at the end there you’ll see whats involved to get to it. You basically need to take the whole camera apart.