Customer Reviews


14 Reviews
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 (10)
4 star:
 (1)
3 star:
 (1)
2 star:
 (1)
1 star:
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8 of 9 people found the following review helpful:
5.0 out of 5 stars Cheaper alternative
it's gray and not yellow like the old battery it replaced, but it works well in my series 400 Roomba.
Published on May 17, 2009 by M.A

versus
3.0 out of 5 stars Ok for price, but doesn't last long
I don't know if its a problem w/ the roomba model I have, but the battery worked very well for the first 20 or so uses, and after that has died out sooner and sooner with each use.
Published 21 months ago by K. G. Sparks


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8 of 9 people found the following review helpful:
5.0 out of 5 stars Cheaper alternative, May 17, 2009
By 
M.A (New York, NY) - See all my reviews
This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
it's gray and not yellow like the old battery it replaced, but it works well in my series 400 Roomba.
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6 of 7 people found the following review helpful:
5.0 out of 5 stars Pleasantly surprised!, September 19, 2009
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
Frankly, I was hesitant to order this because there weren't many reviews and replacement batteries from another vendor can sometimes be a little sketchy in my limited experience. The price made it worth trying for me, and I'm very pleased. The battery fits in my Roomba Sage perfectly, and it charged with no problem. It's been running for a while now doing the first cleaning (hooray for getting housework done while I'm on the computer). I'm happy!
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6 of 7 people found the following review helpful:
4.0 out of 5 stars Charged and worked just fine so far, August 28, 2009
By 
J. Xu (Seattle, WA USA) - See all my reviews
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
It fits Roomba 400 series. Seems to be great value

So far no probs. (I have had 2 yellow ones die in 3 years)
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4 of 5 people found the following review helpful:
5.0 out of 5 stars Roomba 400 alternative battery, August 19, 2009
This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
fits Roomba 400 series.

doesn't get as hot as the Original (yellow) battery while charging or in use, so hopefully may last a bit longer. (I have had 2 yellow ones die in 2 years)

Seems to be great value

So far no probs.
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2 of 3 people found the following review helpful:
5.0 out of 5 stars Works as promised, January 2, 2010
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
I purchased this to replace my Roomba Scheduler battery that died. This one snapped into place and fit perfectly. I've been using my Roomba again for the past month and haven't noticed any change in the new battery life.
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5.0 out of 5 stars It's a battery, February 25, 2011
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
It's a battery. it does what batteries do. I have had it for a couple years (I think?) NO problems what so ever.
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2.0 out of 5 stars Doesn't quite work, January 12, 2011
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
I have a Roomba 400, and the battery stopped holding a charge so I bought this replacement. It works for about 5 minutes, then stops, and I have to restart the Roomba. Another 5 minutes, then it stops. I guess it's not quite compatible!
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5.0 out of 5 stars Roomba Vacuum, September 3, 2010
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
Battery is comparable to factory and Radio Shack brand battery for the Roomba Vacuum. The only difference is that it is half the cost. Shipping time was approx 5 days. Highly recommended.
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3.0 out of 5 stars Ok for price, but doesn't last long, May 24, 2010
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
I don't know if its a problem w/ the roomba model I have, but the battery worked very well for the first 20 or so uses, and after that has died out sooner and sooner with each use.
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1.0 out of 5 stars Product is a waste of your money., March 21, 2010
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This review is from: Tenergy 4905 Replacement Batteries for iRobot Roomba 400 Series Vacuums, Grey (Kitchen)
Dont' buy this battery. It is a total waste of money, it charged up one time then drained and wouldn't charge ever again.
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