will this battery replace a wa3575 battery?

Yes it will. I have both this battery pair, and some WA2575's They both are 20Volt, while the worx is 2Ah, these are 3.0Ah capacity. Charge in a Worx charger, I have three different Worx chargers and they all will charge these and other Worx battery

Will these batteries work with a wg170 weed eater and a wa 3881 charger

Look in your user manual. If the voltage is right then they will. I use them in a lot of different WORX tools. I have a 3881 charger and several other number chargers and they will charge all of these batteries.

My old battery is a 18v lithium, wa3512.1 and charger wa3840, what battery should i order

20-Volt, and you have a choice of 2.0-Ah, 2.5-Ah, 3.0-Ah, 4.0-Ah. Just look around. The 20-V battery is only 20-V when fully charged and has not been used yet, they are really rated at 18-V when in use.

Where can I buy a replacement Worx 40 volt battery and charger

I found some on Amazon, try looking there. Also WORX sells them. Ebay has them listed also.

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Powilling 2-Pack 3.5Ah 20V Battery Replacement for Worx 20V Power Share, for Leaf Blower & Trimming Tools, Compatible with Worx WA3525 WA3575 WA3520

Product ID: 657796962

Details

Battery Capacity
3500 Milliamp
Battery Cell Composition
Lithium Ion
Brand
Powilling
Number of Batteries
2 Lithium Ion
Recommended Uses For Product

⚡20V high-voltage compatibility

🔋3.5Ah long-lasting power

🛠️OEM-fit secure & smooth

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€ 64.10

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your productivity, never pause your progress!

ENDLESS YARD POWER - 3.5Ah capacity keeps your Worx tools running longer without interruption.
SMART BACKUP INVESTMENT - Affordable 2-pack replacement batteries to extend your tool life and avoid downtime.
EFFORTLESS TOOL SWAPPING - Upgraded OEM-size design ensures smooth insertion and removal—no jams, no fuss.
SEAMLESS WORX INTEGRATION - Perfectly compatible with Worx 20V Power Share system and chargers for hassle-free swaps.
COOL CERTIFIED PERFORMANCE - CE, FCC, RoHS certified with multi-protection for safe, cool-running reliability during heavy use.

The Powilling 2-Pack 3.5Ah 20V Lithium-Ion batteries are reliable, OEM-compatible replacements for Worx 20V Power Share tools like leaf blowers and trimmers. Designed for long runtime, safe operation, and smooth tool swaps, these batteries offer a budget-friendly way to keep your yard work uninterrupted with 45-day returns and 12-month warranty support.

Specifications

ASIN	B07JDHLQFZ
Amperage	3.5 Amps
Antenna Location	Indoor/Outdoor
Battery Capacity	3500 Milliamp Hours
Battery Cell Type	Lithium Ion
Battery Weight	1.75 Pounds
Best Sellers Rank	#34,074 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #342 in Cordless Tool Battery Packs
Brand	Powilling
Built-In Media	2 Pack batteries
Compatible Phone Models	For Battery 20v
Customer Reviews	4.4 4.4 out of 5 stars (1,689)
Manufacturer	Powilling
Model Name	wa3525
Model Number	WA3525
Number of Batteries	2 Lithium Ion batteries required. (included)
Reusability	Rechargeable
UPC	192589975142
Unit Count	2.0 Count
Voltage	20 Volts
Warranty Description	All Powilling products come with 30 days money back or exchange, 12 months factory maintenance help and Using friendly customer service

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