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BLACK+DECKER Weed Eater Battery Charger: How to Match It

Match the charger to the exact battery platform printed on your trimmer battery. A 20V MAX pack and a 40V pack require their specified charger families.

A BLACK+DECKER weed eater battery charger must match the battery voltage and connection system, not just the tool brand. Check the label on the pack and the model number on the charger before replacing either item. A 20V MAX pack, an older 18V pack, and a 40V pack are not interchangeable just because each powers a BLACK+DECKER trimmer.

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The essentials

Best Battery Powered String Trimmers for Different Yards

RYOBI RY402110 leads for its wide swath and published kit runtime; other picks suit attachment use, STIHL and FLEXVOLT owners.

Best Battery Operated Weed Eaters for Home Yards

STIHL FSA 50 suits edging flexibility; FSA 70 R targets more demanding homeowner work, and FSA 57 is aimed at smaller lawns.

Our picks

Top picks

Compare them side by side →

Best for a versatile mid-size cutting path

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ECHO DSRM-225

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Best for a shared Husqvarna battery platform

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Husqvarna 220iL

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Best for a wide 17-inch swath

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ECHO DSRM-2600

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By battery and power

Battery powered

Battery operated

Battery power

Cordless battery

Brands

Black And Decker

Best picks

Our best-of lists

Best Battery Powered String Trimmers for Different Yards

RYOBI RY402110 leads for its wide swath and published kit runtime; other picks suit attachment use, STIHL and FLEXVOLT owners.

Best Battery Operated Weed Eaters for Home Yards

STIHL FSA 50 suits edging flexibility; FSA 70 R targets more demanding homeowner work, and FSA 57 is aimed at smaller lawns.

Top Rated Battery Powered Weed Eaters to Compare

RYOBI offers a wide adjustable swath, while STIHL options cover edging conversion and smaller-lawn trimming.

Common questions

Questions before you buy

Which charger works with a BLACK+DECKER 20V weed eater?

Use a charger specified for the exact 20V MAX battery model and connector. Check the battery label and tool manual rather than choosing by voltage alone.

Can I use an 18V charger on a 20V MAX trimmer battery?

Only if BLACK+DECKER lists that charger as compatible with the exact battery. Match the battery family and model in the manual.

What does a blinking red light mean on a BLACK+DECKER charger?

The meaning depends on the charger model and its LED chart. Check that model manual for the blink sequence and confirm the battery is seated correctly.

Does a 40V Grass Hog use the same charger as a 20V weed eater?

Do not assume compatibility. Use the charger specified for the exact 40V battery system.