Questions and Answers for BLACK+DECKER 20V MAX Cordless Battery Powered 2-in-1 String Trimmer & Lawn Edger Kit with (1) 2.5Ah Battery & Charger

A:  Yes, the LST420 has been discontinued. The BLACK+DECKER 20V MAX Batteries are compatible with all BLACK+DECKER 20V MAX tools such as the LST522.

A:  Hi Glenn. The LST522 is compatible with the LBXR20 batteries.

A:  All 20V BLACK+DECKER Trimmers will work with this battery since they are compatible.

A:  I always thought the pre-wrapped was priced moderately.  You also have the option to purchase them from many stores.  I've heard that the wrap your own is very time consuming.

A:  You can use a bulk line. Please make sure it is .065 In. round diameter line.

A:  You can do your own string as long you use the diameter string and wrap it properly 

A:  Thank you for your contact. We apologize for any trouble or inconvenience in finding information. On this issue, please reach out directly to BLACK + DECKER customer service so that we may work together in order to get this issue resolved for you. Thank you for your cooperation on this matter.

A:  I expect that it is because it was the first charge. I bought a second battery and really don't have any idea how long it takes to recharge my battery.

A:  If I remember correctly, it just had one piece to put together. It wasn't difficult.

A:  Minor assembly required. Attach the guard to trimmer's rotor with a phillips screwdriver and attach the handle onto the housing and adjust it up or down. Battery have to be fully charged before using the trim-mer.

A:  No slight assembly needed

A:  Yes...only thing you assemble is the guard

A:  Almost. I believe the plastic line shroud has to be snapped onto the body of the trimmer. That's it. Hope this helps.

A:  Yes, except you have to snap-in the battery.

A:  yes, absolutely

A:  Mine advances automatically,

A:  I haven't seen the photo, but our machine doesn't have a "manual line advance button" That I can find. We just bump it on the ground, and it advances. Hope this helps a little.

A:  Yes! My husband loves his weed wackier.

A:  We apologize for the inconvenience. The unit LST522 does not have the advanced button. The unit will self feed.

A:  No or at least I have not found it 

A:  Hello John Walden Thank you for your contact. We apologize for any trouble or inconvenience with finding information. The advanced automatic line feeding mechanism senses when more cutting line is needed and feeds and trims the correct length of line whenever it’s required. Best Regards Sherri C BLACK + DECKER

A:  I do not know how it work. But It works. W When the string break shorter it create less tension so the spool release more string, you only have to replace the spool when it is all gone.

A:  We do tap it on the ground in order for it to release the line

A:  I would be guessing if I tried to answer your question in technical terms. But no matter how it does it, I can tell you that it works. Just make sure you reload the head exactly as the instructions tell you. If you crisscross the line back and forth the line won’t be free to come out of the reel on its own.

A:  Hello Jan, Thank you for your question. The string trimmer weight 5.7 lbs.

A:  Total weight of the trimer and battery is under 5 lib,

A:  very light but may not do the job effectively

A:  Must be just a few pounds. I have a back problem, but use it easily.

A:  5.7 lbs

A:  I know 40V will. I had a 40volt battery from a previous trimmer and it works! With that said I do believe it will it will just provide way more power so be careful.

A:  Very good product

A:  No its designed for 12v only

A:  No... you must use a 20V battery on a 20V piece of equipment. Using 60V would damage it!

A:  i don't think so 20v last for up to 30 to 40 mins

A:  I have not weighed it, but it is the lightest weight trimmer I have ever used. The wheel allows you to totally rest it on the ground when edging and even can move against a firm edge when using as a trimmer.

A:  5.7 lbs

A:  Must be just a few pounds. I have a back problem and use it easily.

A:  appx 5 lbs.

A:  I'm sorry, I have never weighed it, so not positive of the weight. I would estimate it weighs about 8-11 lbs. with battery attached. Hope this helps.