Will this work with the Eufy 15T?

I'm pretty sure they list all the Eufy models that this is compatible with.

Warranty. What if this battery no longer takes charge in 8 months?

Don't know warranty, but for $15 I didn't have to vacuum regularly for 8 months. Winning.

As soon as it charged up, it started beeping on charger. Anyone else? Any fix?

Mine works great after three hours of being charged.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Firstpower 14.4V 2800Mah Battery - Compatible With Eufy Robovac 11S, 11S Plus, Max, 12, 15C 15C, 30, 30C G10 Hybrid, G20 & Ecovacs Deebot N79Dn622 (Not For 2-Prong Connector)

Product ID: 577554238

Details

Battery capacity
2800 Milliamp
Battery cell composition
Lithium Ion
Brand
FirstPower
Number of batteries
1 Lithium Ion
Recommended uses for product
Power Tool

⚡2800mAh Long-Lasting Capacity

🔋14.4V Lithium-Ion Power

🔌3-Prong Connector Compatibility

S$56

Duties & taxes included

In stock

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Description

🔋 Power your RoboVac like a pro—never miss a clean!

TRUSTED BY THOUSANDS - Rated 4.5 stars by nearly 3,000 users—join the community upgrading their cleaning game.
LIGHTWEIGHT COMPACT - At just over an ounce and small dimensions, it fits perfectly without adding bulk.
POWER THROUGH YOUR DAY - 14.4V lithium-ion battery delivers consistent, reliable energy for your RoboVac.
SEAMLESS COMPATIBILITY - Designed specifically for 3-prong connector models like Eufy RoboVac 11S series and Ecovacs Deebot N79DN622.
EXTENDED CLEANING SESSIONS - 2800mAh capacity ensures longer runtime, so your floors stay spotless without frequent recharges.

The FirstPower 14.4V 2800mAh lithium-ion battery is a high-performance replacement battery compatible with multiple Eufy RoboVac models and Ecovacs Deebot N79DN622. Featuring a 3-prong connector, it offers extended runtime and reliable power, backed by strong customer satisfaction and a compact, lightweight design.

Specifications

ASIN	B086JNN1ML
Amperage	3.2 Amps
Antenna Location	Power Tool
Battery Capacity	2800 Milliamp Hours
Battery Cell Type	Lithium Ion
Best Sellers Rank	#4,404 in Kitchen ( See Top 100 in Kitchen ) #5 in Vacuum Batteries
Brand	FirstPower
Compatible Phone Models	11S MAX, 15C, 15C MAX
Customer Reviews	4.5 4.5 out of 5 stars (2,891)
Item Dimensions	10.2 x 6.6 x 5.6 centimeters
Item Weight	1.06 Ounces
Model Number	11S
Number of Batteries	1 Lithium Ion batteries required. (included)
Reusability	Rechargeable
UPC	781621746460
Voltage	14.4 Volts

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