What is the lifetime of the battery using it once monthly until it is discharged. Does is last for years? Thanks.

I've only had these batteries for about a year. They still work. During lawn care season I use them once or twice a month, they only last about 20-30 minutes, so go right on the charger after use.

Do you charge these before use?

I charge them only if they’ve sat for a while without use

Can you use the Worx charger to charge these batteries or new charger required?

If your charger belongs to Worx 20-volt lithium battery charger, then our this WA3525 lithium battery can compatible with it. (Lasica after-sales service: 90-day full refund and 12-month limited warranty. Please contact us on your order page for help.)

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Lasica - 2 x WA3525 WA3575 4.0Ah 20V Lithium Battery Compatible with WG324 WG545.6 WG644 WG261 WG625 WG184 WG584 WG322 WG779 Cordless Tools

Lasica - 2 x WA3525 WA3575 4.0Ah 20V Lithium Battery Compatible with WG324 WG545.6 WG644 WG261 WG625 WG184 WG584 WG322 WG779 Cordless Tools

Product ID: 724668388

Details

Number of batteries
2 Lithium Ion
Brand
Lasica
Battery cell composition
Lithium Ion
Battery capacity
3000 Hour
Recommended uses for product
Power Tool

⚡20V max voltage for peak performance

🔋4000mAh high-capacity power

🛡️Built-in multi-layer safety protection

Description

🔋 Power up your productivity—never get caught powerless again!

DUAL PACK ADVANTAGE - Two batteries included to keep your workflow uninterrupted—swap and go without downtime.
SAFE SMART CHARGING - Advanced protection against overcharge, overheating, and short circuits ensures worry-free use.
POWER THROUGH YOUR DAY - 4000mAh lithium-ion cells deliver long-lasting runtime for all your cordless tools.
SEAMLESS COMPATIBILITY - Works flawlessly with a wide range of 20V outdoor power tools including leaf blowers, trimmers, and chainsaws.
CERTIFIED QUALITY ASSURANCE - CE, FCC, and ROHS certified for reliable, OEM-level performance you can trust.

Lasica’s dual 4000mAh 20V lithium-ion batteries provide robust, long-lasting power compatible with a broad range of 20V cordless outdoor tools. Engineered with advanced safety features and certified quality, these batteries ensure reliable, efficient performance and seamless tool compatibility, making them an essential upgrade for any professional or enthusiast.

Specifications

ASIN	B088FQVNQT
Amperage	4 A
Antenna Location	Compatible with 20-Volt MAX Cordless Power Tools
Battery Capacity	4000 milliamp_hours
Battery Cell Type	Lithium Ion
Battery Weight	680 g
Best Sellers Rank	#508,544 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4,046 in Cordless Tool Battery Packs
Brand	Lasica
Customer Reviews	4.2 4.2 out of 5 stars (668)
Included Components	2 Pack 20V Lithium Ion Battery WA3525
Item Dimensions	3.4 x 7.5 x 5.2 inches
Item Weight	1.5 pounds
Manufacturer	WALEE
Model Name	Replacement for WA3525 WA3520 20v battery
Model Number	WA3525
Number of Batteries	2 Lithium Ion batteries required. (included)
Reusability	Rechargeable
Unit Count	2 Count
Voltage	20 volts
Warranty Description	90 Days Money Back and 1 Year Warranty!

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