WA3525 20V Battery

These replacement batteries are a significant upgrade over the factory ones that came with my Worx 40V trimmer. They hold noticeably more power—I was able to trim both the front and backyard at full trigger power for about 40 minutes, and the battery indicator only showed a single bar of depletion. Very impressed with the performance and longevity so far!

Great Price for these. I checked and they are compatible with my pre owned Workx charger. I saw some other reviews saying these didn't fit easily into the tools, so I also checked to be sure they fit easily into my weed wacker and leaf blower and they fit fine, just like the originals. They come pre charged, but I will give them a full charge before using them, per the instructions included. Happy to have them at such a great price.

Exact fit

I do wish they had a longer run time! Today the batteries that came with the WORX Hydroshot lasted thirty minutes by my stopwatch. Since I am washing down my house this not really long enough! Also, the owners manual is not really user friendly

Great for my worx blower. I needed to have extra batteries for it & these are direct replacements.

I purchased these in April 2024 because I was looking for a cheaper- but functionally comparable- alternative to the WORX WA3578 batteries. For the first season, they worked well: they weren't exactly the same, but they worked about ~70% as long as the WORX batteries. Still, considering the price savings, it was worth it. For the second season (meaning this year), I've noticed a significant drop in capacity: they're now operating about ~40% as long as the WORX batteries (which are currently 4-5 years old). They do still work and can be useful for a little mowing or trimming, but, for being billed as comparable to the WA3578, they don't hold up well.

These batteries were compatible but don’t hold any charge after attempting to recharge. Run about 5 seconds and then quit. Waste of money. Should be labeled disposable rather than rechargeable. Both batteries behaved the same.

Not sure why some of the WORX tools take different batteries, I thought that was the whole point of the line. Anyway, I bought their handheld small 'chainsaw' and they did not have in stock the correct batteries to go with them so found these on Amazon (they are quite a bit cheaper also). You do have to buy the charger separately. They charged quickly and seem to have good hold power. No issues with them fitting the WORX tool.