Use the battery, tool and charger as an approved system. Stop using equipment that is damaged, leaking, smoking or abnormally hot.
Before use or charging
- Read the exact model and regional manual.
- Use only a pack and charger the manufacturer supports for the product.
- Check the physical charger AC input label before using an imported unit.
- Check battery condition and keep the charger ventilation unobstructed.
Adapters and modifications
A third-party adapter fitting into a tool is not manufacturer approval. Do not bypass a protection circuit, modify terminals or attempt to repair a lithium-ion pack yourself. Approved manufacturer accessories have their own limited instructions.
If a product looks unsafe
Disconnect and stop use when safe to do so, keep people away from smoke or heat, and follow emergency guidance and the manufacturer’s instructions. For persistent faults or damage, use an authorized service channel and check model-specific recalls.
Limits of this guide
This page is general safety guidance. It cannot assess the condition of an individual battery or replace a product manual, recall notice or qualified inspection.
Official sources
These source records were reviewed as of 2026-10-30; access methods differ. Open the latest manufacturer manual for your exact type, region and revision before use.
- US Consumer Product Safety Commission — Batteries safety topicBattery, product and charger should be evaluated as a system · curated_primary · Checked 2026-10-30
- DEWALT USA — Battery and charger instruction manualHot/cold pack delay and charger safety · curated_primary · Checked 2026-10-30