Why You Need This Battery
Your Electrolux PI91-4SWN (i9) or PI91-5SSM robot vacuum is a smart, efficient cleaning companion for your home. But even the best batteries degrade over time. After years of use, you've likely noticed shorter cleaning cycles, the robot returning to the dock prematurely, or the battery refusing to hold a charge. Replacing it with a cheap, lowquality battery often leads to false capacity readings, swelling, or failure within months.
This OSBP72LI25 battery solves that problem delivering true 3000mAh / 21.6W h capacity with brand new Grade A Li-ion cells. What you see is what you get.
Designed for Electrolux Robot Vacuums
This battery is a direct fit for the following models.
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Compatible Models
Electrolux PI91-4SWN (i9)
Electrolux PI91-5SSM
Electrolux PI91-5SGM
Electrolux PI92-4STN
Electrolux PI92-4ANM
Electrolux Pure i9 series
Replaces OEM part numbers (partial list):
Common P/N
OSBP72LI25
S91-0400410-SU2
405537959/0
4060001007
OSBP72LI
Specifications
You Can Trust
Specification Detail
Model OSBP72LI25
Chemistry Li-ion
Voltage 7.2V
Capacity 3000mAh / 21.6W h
Color Black
Safety Standards CE, FCC, RoHS
Condition Brand new Grade A cells
Warranty 30day return + 12month warranty
What a Cheap or Failing Battery Costs You
Short cleaning cycles Your robot returns to the dock before finishing.
Reduced suction power Weak battery affects cleaning performance.
Swelling Dangerous bulging that can damage the robot's internal components.
Frequent recharging The robot spends more time charging than cleaning.
What Our Battery Delivers
Feature Cheap Generic Our Premium Battery
True Capacity Often under 2500mAh 3000mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Cleaning Cycle 6090 minutes 120+ minutes
Swelling Risk High within months Low, proper BMS
Safety Standards None CE, FCC, RoHS
Warranty None or 30 days 30day return + 12month
Who Is This Battery For?
Electrolux PI91-4SWN (i9) robot vacuum owners who want to restore cleaning performance.
PI91-5SSM, PI91-5SGM, and PI92 series users looking for a reliable replacement.
Anyone whose original battery is swollen or no longer holds a charge.
Users who want a costeffective alternative to OEM replacement.
Why Choose Our Battery?
Genuine Grade A Li-ion cells Not recycled or refurbished.
Exact OEM specifications Matches Electrolux's original 3000mAh / 7.2V design.
Advanced safety protection Overcharge, overdischarge, shortcircuit, and overtemperature protection built in.
100% tested Each unit is tested for capacity and cycle life before shipping.
12month warranty Buy with confidence. If anything goes wrong, we've got you covered.
Installation Note
To replace the battery:
Turn your Electrolux robot vacuum over.
Remove the battery compartment cover (screws may be required).
Disconnect the old battery and remove it.
Connect and install the new OSBP72LI25 battery.
Replace the cover and charge fully before first use.
What's Included
1 x OSBP72LI25 Replacement Battery (3000mAh / 7.2V )