The Tenergy replacement battery that I purchased worked well for 7 months and then failed. Unfortunately, the warranty is only for 6 months. The vendor I purchased from (Battery Superstore) offered free shipping on my next purchase, but was firm on the 6 month warranty.
Bottom line - The Tenergy batteries seem to have short lifespans. If they typically lasted a year, I suspect the warranty would have been made to match. Tenergy Replacement Battery for iRobot 400 series Roomba
We have owned an iRobot for a few years now and unfortunately the design of the batteries has a lot of room for improvement. We also have tried replacement batteries from a variety of sites with mixed results (including failure right out of the box!). We are very happy to have found a great replacement battery from Tenergy! When the time comes, we will definitely reorder the Tenergy replacement battery!
I bought this for a roomba scheduler. It actually runs longer than the original set by I Robot. I had a extra battery and had it rebuilt locally and it cost $40.00. It's charge only last for about 20 minutes. I found a new replacemant at Amazon for $39.95 and it last for 90 minutes. This is a must buy if you need you battery replaced.
I received this battery promptly and happily put it into my Roomba, which had a dead battery. It started right up and worked quite well.
About 40 minutes later, my Roomba was dead again. The battery lasted only 40 minutes, when the product description claims it should run more than twice that. Either this is a dud battery or just a cheap ripoff.
Please don't claim that a battery has 3.3 Ah of battery capacity when it clearly does not. There wasn't even a label on the battery.
I can't recommend this product unless you're really strapped for cash.
EDIT:
After opening the battery, I can verify that the capacity is not the 3.3 Ah as advertised, but 2.6 Ah, more than 20% less capacity.
Not only this but the company that makes the batteries is called Golden Dragon Battery, based in China.
Shoddy product, false advertising, and reselling of other companies products makes me want to say with certainty that I would never buy from this company again.
40 minutes of actual actual run time vs 100 minutes advertised? NO THANKS
I bought this battery 11 months ago and just in the last month it started loosing battery power it is down from the 40 minute charge it had when it was new to 10 min charge now, this one lasted longer than the one I purchased directly from iRobot that I paid twice as much for, the iRobot replacement battery only lasted 8 months. You have to make sure your robot is always on the charger when not in use. I am on my 3rd roomba and my 7th battery, this battery has lasted longer than any other one that I have had. I am going to order my 8th one now hopefully the quality will be as good as the last one.
I was upset that the battery went bad in a few weeks. I contacted this vendor and there was a few communications problems but the long and short of it is I paid them $7.00 to cover shipping and once we were talking on the level they sent me a replacement battery right away. I still recommend this vendor and will continue to do business with them. - Roomba Battery - Irobot Roomba Battery - Roomba - Battery'
Detail Products
Detail Reviews
Click here for more information
