Estry

Battery for Panasonic EY7440LN2S EY7540LN2S EY7541LN2S EY7542LN2S EY7840LN2S EY3740B EY9L40B EY7542 EY7440 EY7541 EY7540 EY7840 EY4542 EY4541 EY4640 EY7542 Cordless Impact Driver EY7440 Cordless Drill EY7541 Cordless Impact Driver EY7540 Cordless Impact D

Q: How do I confirm this battery fits my device?

Match your device against the Compatible Model list, or compare the part number printed on your original battery. Still unsure? Email us with your battery details or photos and we will help you confirm.

$65.99 USD

~~$0.00 USD~~ $65.99 USD

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Title 2000mAh

12-Month Warranty30-Day Easy ReturnsShips from US in 48hUN38.3 & ISO9001 Certified

This is a 2000mAh 14.4V Li-ion replacement battery for Panasonic EY7440LN2S, EY7540LN2S and more, compatible with battery part numbers EY9L40B, EY9L40, EY9L41 and more.

Battery Specifications

Type:	Li-ion
Weight:	544.0g
Dimension:	130.2579.4948.08mm
Category:	Power Tools
Voltage:	14.4V
Rate:	28.80Wh

Compatible Brand

Panasonic

Compatible Model

EY7440LN2S
EY7540LN2S
EY7541LN2S
EY7542LN2S
EY7840LN2S
EY3740B
EY9L40B
EY7542
EY7440
EY7541
EY7540
EY7840
EY4542
EY4541
EY4640
EY7542 Cordless Impact Driver
EY7440 Cordless Drill
EY7541 Cordless Impact Driver
EY7540 Cordless Impact Driver
EY7840 Cordless Rotary Hammer Drill
EY4542 Cordless Circular Saw
EY4541 Cordless Jigsaw
EY4640 Cordless Angle Grinder
EY3740B Flashlight

Compatible Battery Part Number

EY9L40B
EY9L40
EY9L41
EY9L40B11

⚠ Safety Warnings

Do not disassemble, puncture or modify the battery.
Never short-circuit the terminals or expose to heat / fire.
Do not mix with different batteries or chargers.
Recycle used batteries at designated collection points.

Why Choose Estry

✓ Grade A Cells — Premium cells with stable discharge and low self-discharge.

✓ Real Capacity — Capacity tested to match or exceed the original battery.

✓ Strict QC — Every battery passes charging/discharging and safety checks.

UN38.3 tested for safe transport. MSDS available upon request. Manufactured in an ISO9001 certified facility.

FAQ

How do I confirm this battery fits my device?

Match your device against the Compatible Model list above, or compare the part number printed on your original battery. Still unsure? Email us with your battery details or photos and we will help you confirm.

What is the warranty policy?

This battery is covered by a 12-month warranty against manufacturing defects, plus 30-day easy returns for peace of mind.

How fast will my order arrive?

In-stock orders ship from our US warehouse within 48 hours on business days.