BEST A80 Ultrasonic Cleaner for Motherboard Cleaning

Say you've just pulled a phone board out of a device that took a swim. Green crust has crept under the shields, and a brush can't reach the residue hiding beneath the chips. An ultrasonic bath shakes that debris loose without anyone scrubbing at fragile parts.

The BEST A80 is a small bench unit rated at 50 W and 40 kHz. Its stainless steel tank measures 150 × 95 × 65 mm and holds 700 ml, so phone boards, small modules and similar parts fit easily. The listing gives a typical cycle of 3 to 10 minutes and says the unit comes with an EU, US or UK plug.

When a board needs a bath

• Corrosion and dried residue left after liquid damage.

• Sticky flux left under components after rework.

• Dirt packed into connectors that causes intermittent contact.

• Small metal parts or screws that are too greasy to reuse.

Getting good results

Fill the tank with water or a suitable cleaning solution until the parts will be covered. Put the items in the basket so they don't rest on the bottom of the tank. Choose a time that fits how dirty they are, then rinse and dry everything completely afterwards.

Take off batteries, screens and other parts that shouldn't go into the bath before you start. Don't apply power to a board until it's fully dry.