

EUFY | SKU: EU3759SE_Oth
M26-4S1P-1 Replacement Battery for Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T (2600mAh)
If your Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T is no longer holding a charge as well as it used to, or if it is swelling, it may be time to replace the battery. This battery is a great option for restoring your Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T to its original performance.
Easy 30 Day Return Policy
12-Month Warranty
Secure online payments
- 2600mAh
- 14.4V
- Li-ion
- M26-4S1P-1
- Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T
Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T — 14.4V Li-ion Replacement Battery (M26-4S1P-1)
If your Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T is draining fast or barely lasting half a
day, this high-quality M26-4S1P-1 replacement battery brings
back the power you're used to.
Built-in protection against overcharging and short circuits
Matches original voltage and capacity specifications
Backed by a 12-month warranty
Replaces the following parts
INR18650 M26-4S1P-1
Compatible with the Following Devices
for Eufy RoboVac 11
for Eufy RoboVac 11S
for Eufy RoboVac 11S Plus
for Eufy RoboVac 11S Max
for Eufy RoboVac 12
for Eufy RoboVac 15C
for Eufy RoboVac 15C Max
for Eufy RoboVac 15T
for Eufy RoboVac 25C
for Eufy RoboVac 30
for Eufy RoboVac 30C
for Eufy RoboVac 30C Max
for Eufy RoboVac 35C
for Eufy RoboVac 25C Max
for Eufy RoboVac G10 Hybrid
for Eufy RoboVac G20 Hybrid
for Eufy RoboVac G30
for Eufy RoboVac G30 Edge
for Eufy RoboVac G30 Hybrid
for Eufy RoboVac G30 Verge
for Eufy Robovac G32 Pro
for Eufy RoboVac R500
for Eufy RoboVac R450
for Ecovacs Deebot N79
for Ecovacs Deebot N79S
for Ecovacs Deebot N79SE
for Ecovacs Deebot N79W
for Ecovacs Deebot 500
for Ecovacs Deebot DN622
The specific time varies according to the machine model and age, most of which last for 2 hours.
Compatibility Note: Please check your original Battery model before ordering. Professional installation recommended.
What's in the Box
1x high-quality replacement battery for Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T (M26-4S1P-1, 2600mAh )
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Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T Battery Specifications:
| Condition | New |
| Capacity | 2600mAh |
| Voltage | 14.4V |
| Battery Type | Li-ion |
| Model: | M26-4S1P-1 |
| Compatibility: | Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T |
| Certifications | CE, RoHS, UL |
| Protection Functions | Overcharge, Deep Discharge, Overvoltage, Overcurrent, Short Circuit |
| Warranty | 12 Months |
Upgrade your Eufy RoboVac 11 11S 12 15 15S 15C 25C 30 30C N79 N79T with a high-quality replacement Battery and enjoy improved performance and longer usage time.
Battery Care Tips
Getting Started
Charge your new battery fully before you use it for the first time. Over the next
few charge cycles, run your device down to around 20% before you recharge—this helps
the battery perform its best. After that, charge whenever you need to.
Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both
extremes wear it out faster. Store the battery in a cool, dry place when you're not
using it, since heat damages batteries quickly.
Shipping policy
We strive to ensure that your order arrives quickly, safely, and on time.
Free Worldwide Shipping
We offer FREE shipping on all orders.
Processing Times
Orders are generally processed and shipped from our facility within 1-2 business day (excluding weekends and holidays).
Delivery Times
Once shipped, orders typically arrive within 7–15 business days within the contiguous United States, depending on the shipping method and destination.
Please note: These are estimated delivery times. Actual delivery may be affected by customs clearance, weather, or other unforeseen circumstances. We appreciate your patience and understanding.
Tracking Information
When your order has shipped, you will receive an email informing you of your package being shipped along with a tracking number. If for any reason you don't receive this or for more shipping information, please contact us along with your order number.
Please note, tracking can take around 24---48 hours to update after dispatch.
Important Information
We are not responsible for incorrect addresses entered by the customer.
Payment policy
My Battery Parts accepts payments by any of the following methods:
Visa, MasterCard, American Express, and Discover Credit and Debit Cards, Google Pay and PayPal.