Using older 61W USBC Power Adapter for new 2022 13" MacBook Air
Could I use a 61W USBC Power Adapter from a 2017 13" MacBookPro as a secondary power source for a new 13" MacBook Air Model A2337?
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Yes, provided "as a secondary power source" does not imply you expect to charge your Mac with both power adapters simultaneously.
Find the right power adapter and cable for your Mac notebook explains "... you can charge your Mac notebook with any USB-C power adapter or display."