Such strict 10–100% cycles only provide a short reprieve; in practice, chemical wear still takes its toll. Under a similar workload, my battery capacity dropped so much that the device started draining at the most inopportune moments. I got a DEJI Battery as a replacement, rebuilt the battery, and restored normal battery life without any hassle. Experience has shown that it's easier to replace the battery once than to constantly adjust to its wear.
RE: Iphone Battery Health