KUNLUN 3.5Ah Replacement Battery for Worx Battery 20V WA3525, WA3578, WA3575, WA3520, WG151s, WG155s, WG251s, Compatible for Worx 20V/40V Cordless Tools(2 Pack Battery)

Well, I dropped one of my Worx batteries smack onto the walkway. *sigh* So I looked for a replacement. *GASP!* Sticker shock! Also, sorry you're just out of your warranty... After more looking about, I found these and I read a lot of reviews. They work pretty good for me. Not quite as good I'd say as my original Worx brand but it fixed my problem.P.S. If you don't know already, dropping a battery pack onto something hard is usually bad... my battery failed during charge up and I had to recycle it.

Great replacement batteries. The last ones lasted almost 4 years so I think it’s worth the cost!

The first ones I received only one would charge. Second set both charged and the work like original ones.

They are great. I have 5 now. The 18 volt die on me 6 weeks ago, it came with the original worx weed eater.

Use these in my blower and my chainsaw at my campsite. Work well.

Worx changed their battery configuration two to three years ago. I had to throw away two perfect 32 volt batteries because the electrical connectors on the battery no longer fit their equipment. I am uneasy when buying batteries from a different manufacturer due to the possible fit problem. These batteries fit and work just fine. For the price, they are a good deal.

I bought two battery, both only work for a few minutes after charged for hours.

They work great and easy to charge. Easy to install and remove. Hold a charge.