Complete the game in 38 loops (total time was 1h15m). It's a nice puzzle, I definitely faced some troubles trying to find more efficient routes. Some routes are matters of execution and I simply didn't know the technique for it.
Area that you could improve the game in my opinion will be a table/graph of your previous loops like:
| Seconds | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Loops 1 | enter electrical | (I forgot the name) -50 power | return | gather batteries |
| Loops 2 | gather batteries | enter electrical | (I forgot the name) -50 power | insert batteries |
This will make it much easier for players to compare runs, understand where optimization is needed and determine if they were correct.