Though my Worx WG781 cordless 36V, 19 inch lawn mower came with what appeared to be a fully charged battery according to the battery LED lights , it is suggested that it be put on the charger "over night" to insure a complete charge. The charger LED light is supposed to flip from red to green when charging is complete. The battery has been charging for nearly 12 hours and the LED light on the charger remains red. Is this normal?

Use locktite red on the threads. It may also be that one bolt is left hand thread and the other side is standard right hand thread. The should be on so that moving forward tightens the nut. You should also have two washers and a nut. I wonder if you have the one that was discontinued?

36V 19" Electric Self-Propelled Lawn Mower - Black & Decker

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Mow up to ? of an acre with the removable BLACK+DECKER 36V mower battery. Have a larger lawn? 36V cordless technology allows you to charge additional ...

Black and Decker Lawn Mower Parts ' Fast Shipping ...

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Black and Decker Lawn Mower parts that fit, straight from the manufacturer. Use our ... 37052 Type 1 Black and Decker 19 Crafts Cordless Mower Parts.

Rechargeable Battery Powered Mower - Black & Decker

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36V 19 in. Mulching/Bagging Mower. This product has been discontinued and replaced with ... Adjust the height of all four wheels at once with the pull of a lever.

don't they r junk and batteries r expensive just gave one to scrap dealer

I think the motor brushes are warn out and need replacing.

Sears Direct has manuals. Sorry, all I can find.

Battery is bad.

try running the battery right down to fully flat this should reset the diods to fully recharge the battery again

The batteries are defective in this unit. It should be returned to the dealer that you purchased it from and get exchanged, or your money back. Another way to test this mower is to charge the batteries fully, then test them. If they are truly fully charged, run the mower until it slows down, and test the batteries again. If they are still charged, (unlikely) then the problem is in the motor itself and still should be returned.

could have a bad battery

The battery is overheating and is shutting down as a safety measure. If allowed to continue overheating, you risk it becoming a fire hazard.

You will need to replace the battery and dispose of this one accordingly.

it could be a low lift blade on it. try to get gator blade for mulching..... or a high lift blade. lol, size does matter!!! this may fix the issue. there is so many blades out there now, experiment till you find what your looking 4......