2 Pack 4.0Ah 20V Battery for Worx, ASUNCELL Li-ion Replacement Battery for Worx 20V WA3551, WA3551.1 WA3553 WA3553.2 WA3641 WG629E WG546E WU268 WX166.4 Compatible with Worx 20V Cordless Power Tools

Perfect fit and build quality and the performance so far is great.These 4ah batteries last far longer than the Worx 2ah that came with the pressure washer and the twin pack I purchased is cheaper than a single 2ah Worx battery.In my opinion, you can't go wrong with these 👍

These seem like good quality only time will tell.

They are Brilliant Rechargeable batteries.And cheaper than the originals.

Compatible with Worx hydroshot pressure washer, and lasts just as much as original worx battery. Very pleased

These work well with my Worx lawn mower and strimmer.

Seems to work as well as originals. Fits the tools well, decent construction.

Review of ASUNCELL 4.0Ah 20V Battery for Worx, Li-ion Replacement Battery.Among my assortment of power tools I bought a second hand Worx SDS drill without battery but with charger, never having used a Worx tool before it was ideal to obtain this compatible battery.The item received a WA3553 4Ah battery fully charged and ready to go, this different to my other 18v tools as a 20v battery.Having no expectations from my used second hand drill, the battery duly attached, drill bit fitted I set to work, complete surprise not only did this drill work the battery power was something else, I certainly did not expect to find such a difference between an 18v and 20volt power supply.After half an hour of drilling holes into concrete this Asuncell battery was still going strong, one of the power lights depleted but no obvious sign of power loss. Even though my work was intermittent the battery lasted all day with some still in reserve, the Worx drill also much better than expected.Battery duly charged overnight the next day it was raring to go as per the previous day, the battery seemingly well built with decent battery cells that charged to full capacity without problem and supplies extra power from a 4Ah 20v unit.My second hand Worx drill a good find, this Asuncell 20v battery even better giving that little bit of extra power, charges without problem and seemingly lasting longer although difficult to accurately judge with intermittent work.