Cordless vacuum will not power on; battery LEDs remain off even after charging

Safety first: Turn the power switch OFF, remove the battery pack from the vacuum, and unplug the charger from the wall before inspecting anything.

• Check battery seating: Remove the Hamilton Beach battery pack and firmly reinsert it until it clicks. Many cordless Hamilton Beach vacuums use slide-in packs that must fully engage the contacts.
• Test with charger: Plug the OEM Hamilton Beach charger into a known-good outlet. Insert the battery into the charger and verify that the charger LED turns on. If the charger LED stays off, the charger or battery pack may be faulty.
• Inspect contacts: Examine the battery terminals and the vacuum’s battery contacts for corrosion, bent pins, or debris. Clean gently with a dry cloth; do not use liquids. Lightly straighten bent contacts with non-metallic tools.
• Check power switch: With the battery removed, rapidly toggle the power switch 10–15 times to clear internal oxidation, then reinstall the battery and try again.
• If still dead: Try a known-good Hamilton Beach battery pack if available. If the vacuum powers on with a different pack, replace the original battery. If it remains dead, the main control board or internal wiring is likely faulty and should be serviced by a technician.