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  • iRobot Roomba APS 4905 Battery
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iRobot Roomba APS 4905 Battery

by iRobot

List Price: $69.99
Price: $39.99 + $5.47 shipping
You Save: $30.00 (43%)
Only 1 left in stock.
Ships from and sold by HI-FI DEALS.
  • Easy to charge and connect
  • Charges in 3 hours with ABS Fast Charger
  • Provides approximately 120 minutes of run-time
  • 50 percent greater useful life than original Roomba batteries
30 new from $39.99 6 used from $25.71 1 refurbished from $24.99

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Frequently Bought Together

iRobot Roomba APS 4905 Battery + iRobot Roomba 4910 Replacement Filters
Price for both: $45.69

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Special Offers and Product Promotions

  • Buy Used and Save: Buy a Used "iRobot Roomba APS 4905 Battery" and save 63% off the $69.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Details

  • Item Weight: 1.8 pounds
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B00022HZ04
  • Item model number: 4905
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (301 customer reviews)
  • Amazon Best Sellers Rank: #323,213 in Home & Kitchen (See Top 100 in Home & Kitchen)
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Product Description

Roomba APS Battery

Customer Reviews

I will return it.
Amazon Customer
The picture I clicked on to place my order was not the battery that was sent to me.
Melvin D. Denton
I charged the battery overnight and it is working fine in my Roomba.
T. Jefferies

Most Helpful Customer Reviews

386 of 396 people found the following review helpful By kensmiles on September 10, 2006
Your Roomba may be experiencing an issue where the battery is deeply discharged and may need to charge longer than the standard 2.5 hours. (or 6 hours if you have a standard charger)

If you have fully charged your Battery (the Roomba Power light is solid green) and it charging time was short (less than 20 minutes) and its run time was short (less than 20 minutes) you will need to do the following.

Reset the Roomba charging system. Do this by removing the Battery and holding down the "power" button for at least 5 seconds. Then reinstall the Battery.

Plug the Charger into Roomba (avoid using the Home Base if you have one so as to ensure the Roomba's charging cycle is not interrupted.)

Charge the Battery until the Roomba Power light is solid green and keep the Roomba on the Charger for an additional 72 hours (3 days). Note: Do not interrupt this charging cycle.

In Max mode, run the Roomba for one complete cycle without a Home Base present, to deplete the battery. Keep track of the runtime and if it has improved, repeat steps 3 and 4 a few times. If your Roomba does not have Max mode, run several Clean cycles until Roomba stops and plays the "dead battery" song.
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64 of 68 people found the following review helpful By Scott A. Speakman on September 1, 2009
Verified Purchase
I just received this order and discovered that, despite the deceptive photo for the product description, this is a generic replacement and not an authentic iRobot brand battery. I have not yet tested it to see how well it performs; but I am quite upset with the deceptive product description. Now that I read the reviews others have written, I find several reviews that point out that this is a generic brand battery-- I wish I had read those more carefully before buying this battery.

There are several other companies selling aftermarket batteries for the Roomba on Amazon. I have no idea if they are better or worse than this one-- but several are cheaper and clearly identify themselves as aftermarket, 3rd party batteries. I decided to pay a little bit more for this battery because I thought I was getting an iRobot brand battery.

So, if you are considering buying this battery hopefully you read these reviews more carefully than I did and know ahead of time what you are getting for your money.
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11 of 11 people found the following review helpful By matt b on March 1, 2007
Verified Purchase
The original was fine, but unimpressive, generally. My initial battery died pretty quickly, going from over an hour, to around 15 minutes, to under... anyway, after a few charges and discharges, this lasts considerably longer than the original.

It does what it's sold to do. Half the reviewers are rating Amazon's ability to ship the battery on time, somehow... mine arrived in 2 days (prime).

Good price, good product.
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10 of 11 people found the following review helpful By Katherine Blackthorne on March 21, 2008
IRobot products have some of the best customer support I've seen, anywhere. Just call the number (it's on the robot) and talk to them... I've repeatedly had them diagnose a problem over the phone, then send the needed replacement part for FREE.

This time, I'd waited till my warantee was so far past expired that I was embarrassed to call. So I ordered a new battery.

A little research shows that I'd actually been damaging the battery by trying to prolong its life. With many rechargeable batteries, it is important to periodically discharge it completely (or as completely as possible), and harmful to over-charge it.

With Roomba batteries, it's the opposite. The battery is actually damaged by being left off the charger too long. (This is why some of the "smarter" models will return to the charging base on their own.)

So when I tried to run it down all the way, and left it unplugged for several days, I damaged it. (Above info found on IRobot Website)

I love being able to keep my hardwood-with-area-rug floors clean, constantly. I love coming home from work to clean floors, and never having dust bunnies under the bed or clawfoot tub. I love the fact that the expensive HEPA bags on my big upright hardly ever need changing, because Roomba keeps too much dirt from building up. I love not having my long hair (or my cat's hair) turn up underfoot. I love my infant daughter's clothes not getting dirty from crawling on a dusty floor. And I love her not finding "special tidbits" in the carpet. I love starting a load of laundry, a load of dishes, and the Roomba running, then going out and enjoying myself for an hour while the housework gets done.

I've seen a Roomba pick up dust from cat litter. I've seen a Roomba pick up a marble. It's just amazing.
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8 of 8 people found the following review helpful By Paul Adkins on October 26, 2009
Verified Purchase
I bought this to replace an original dead batter for the Roomba. I followed the charging procedures and then let it do it's thing. The battery lasted for about two months. After that, the roomba would dock and charge full, then when I told it to clean, it'd start cleaning for 15 secs, then it'd start beeping and die. Now my Roomba just sits on the ground collecting dust.
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20 of 24 people found the following review helpful By Les Paul on September 29, 2005
Verified Purchase
I wasn't quite sure why my generation 2(?) Roomba would just shut down right after starting, but I suspected the rechargable battery. This battery works almost twice as good as the original one. 49.99< 279.99.... You know a brand new Roomba!
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8 of 8 people found the following review helpful By A. Gift For You on April 29, 2008
It takes long time to charge and it only can use for about 30 mins. and the lifetime of the battery are short --less than a year.
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See the Top Rated Vacuums in our Vacuum Reviews page. Or, see our lists of the Best Vacuums for Pet Hair, the Best Vacuums for Hardwood Floors, and the Best Vacuums for Carpets