Session cuts off early or mask turns off mid-treatment
If your mask is turning on but stopping before the session is complete, this is almost always related to the remote battery not being fully charged.
Why sessions cut off early
The remote battery powers the entire session. If it doesn't have a full charge, it may run out partway through — even if it appeared to be charged. This is different from a defective unit. Work through the steps below first.
Step 1 — Do a full 3-hour charge
Even if you charged recently, a partial charge can cause exactly this issue.
- Plug in the remote using the provided cord and adapter only
- Leave it charging until the indicator lights on the remote turn off completely — this means it's fully charged
- Do not unplug when the lights are still on
Step 2 — Understand expected battery life
The remote battery is designed to last approximately 3 full sessions before it needs recharging. Each session is up to 20 minutes.
- If you're recharging after every single session, the battery isn't performing as expected
- If you're getting roughly 3 sessions per charge, the battery is working correctly — just charge it every few days
Step 3 — Know your session lengths by mode
Each mode has a set duration. If the mask turns off after the expected time for that mode, it may have completed the session normally:
- Mode 1 (top button): 20 minutes total — 10 minutes red, 5 minutes blue, 5 minutes dark red — then shuts off automatically
- Mode 2 (top button, second press): 10 minutes total — 7 minutes pink, 1 minute purple, 1 minute blue, 1 minute yellow-orange — then shuts off automatically
- Modes 3–6: accessed via the bottom button, each with their own durations per page 37 of the instruction manual
If the mask shut off at exactly the right time for the mode you were in, it completed the session as designed. See the instruction manual (page 37) for full mode details, or watch the tutorial video at https://youtu.be/YZxKs33UEU4
Still cutting off too early?
If the mask is consistently turning off well before the mode's expected duration even after a full 3-hour charge, the remote battery may be faulty. Please contact us at support@chouohctokyo.com — we'll ask you to send a short video showing the issue so our team can assess it.