PBSwitch_3mode_3ch-M3：1.增加干电池低压检测，1.1V低压，0.9V关机；
Review Request #4587 — Created July 26, 2022 and updated
| Information | |
|---|---|
| chenjianrong | |
| YC1308 | |
| Reviewers | |
| chenjianrong, luoyuxi | |
1.增加干电池低压检测，1.1V低压，0.9V关机；
Review Request #4587 — Created July 26, 2022 and updated
| Information | |
|---|---|
| chenjianrong | |
| YC1308 | |
| Reviewers | |
| chenjianrong, luoyuxi | |
1.增加干电池低压检测，1.1V低压，0.9V关机；
