Detailed Answer
Shipyard shifts are long + low temperatures (winter sea wind), so batteries: lithium as the main battery (5-10 days runtime, standard on the LDER LD series), NiMH as cold-weather backup. Spare batteries ≥2 (shift rotation), charging management (desk charger + original charger). Keep batteries warm in shipyard winter cold.
| Primary | Lithium |
| Backup | 2× NiMH |
| Charging | Original desk charger |
Note:Use a battery rotation schedule to prevent work interruptions.