could these batteries be charged up on my worx charger model WA3876

Hello, Our batteries are compatible with this charger

Will these work on a worx mower model Wg779e

I think you will find you need a minimum of 20V 4Ah x 2 to run a mower. The 3.0Ah are great for lighter Worx tools - I have one for the strimmer WG163E.9 and it works fine. The mower is a heavier piece of machinery. I have one and I have the original Worx batteries rather than generic replacements.

I bought two of these. one has stopped working. it won't charge which seems to be a problem others have faced. what can i do?

Mine are fine..I don't know what you can do other than but a new one..I take it it's the battery and not the charge faulty

Can you use this battery with the worx landroid s30 robotic lawnmower

I used it with a worx power wash, so long as the connection is the same ,click in, I would say so. If it doesn't you can always return it.

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20V 3.0Ah Replacement Battery for Worx Battery WA3551 WA3551.1 WA3553 WA3553.1 WA3572 WA3641 Lithium Battery Compatible with Worx 20V Power Tools

Product ID: 156490500

Details

Battery capacity
3000 Milliamp
Battery cell composition
Lithium Ion
Brand
Jialitt
Number of batteries
1 Lithium Ion
Recommended uses for product
Compatible 20v

⚡Lightweight design reduces fatigue

🔋3000mAh high-capacity

🛡️Multi-protection electronics

Description

🔋 Power up your productivity—because your tools deserve the best!

STAY SAFE STAY PRODUCTIVE - Advanced multi-protection circuitry guards against overheating, overloading, and overcharging for peace of mind.
KNOW YOUR POWER AT A GLANCE - 3-stage fuel gauge lets you monitor battery life instantly—never get caught off guard again.
LIGHTWEIGHT FOR ALL DAY USE - Ergonomically designed to reduce fatigue, so you can work smarter, not harder.
TRUSTED DURABILITY SUPPORT - Premium lithium cells ensure long-lasting performance backed by 12 months warranty and responsive customer care.
POWER THROUGH LONGER PROJECTS - 3000mAh high-capacity battery keeps your Worx tools running strong without constant recharging.

The Jialitt 20V 3.0Ah Replacement Battery is a high-capacity, lightweight lithium battery compatible with multiple Worx 20V power tools. Featuring advanced safety protections and a 3-stage fuel gauge, it delivers reliable, long-lasting performance with user-friendly monitoring. Backed by a 12-month warranty and dedicated customer service, it’s the smart choice for professionals who demand efficiency and durability.

Specifications

ASIN	B07RTB97X2
Amperage	3 Amps
Antenna Location	Compatible with worx 20v series tools
Battery Capacity	3000 Milliamp Hours
Battery Cell Type	Lithium Ion
Battery Weight	11.99 Ounces
Brand Name	Jialitt
Customer Reviews	4.5 4.5 out of 5 stars (257)
Item Dimensions	10 x 8 x 4 centimetres
Item Weight	340 Grams
Manufacturer	Jialitt
Model Number	NECALON
Number of Batteries	1 Lithium Ion batteries required. (included)
Reusability	Rechargeable
UPC	746362472429
Unit Count	1 count
Voltage	20 Volts

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