A: The BX60 is passively cooled (no fan) in most versions. If it gets very hot, it will reduce output automatically. Make sure it’s not in direct sunlight.
Connect the negative (-) black crocodile clip to the negative terminal. Plug into Power:
| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Needle doesn’t move | No power or poor connection | Check outlet & clamp contact | | Buzzer sounds immediately | Reverse polarity | Swap the clamps (red to +, black to –) | | Battery gets hot | Overcharging | Stop charger, let cool | | Needle jumps erratically | Loose connection or old battery | Clean terminals & retry |