Roomba Vacuum - iRobot Roomba Vacuum » 3800mAh http://www.roombavacuum.net Best Deal For iRobot Roomba Vacuum Sat, 17 Oct 2009 15:18:44 +0000 http://wordpress.org/?v=2.8 en hourly 1 Tenergy 14.4V 3800mAh NiMH Battery Pack for IRobot http://www.roombavacuum.net/30/tenergy-14-4v-3800mah-nimh-battery-pack-for-irobot/ http://www.roombavacuum.net/30/tenergy-14-4v-3800mah-nimh-battery-pack-for-irobot/#comments Mon, 13 Jul 2009 19:13:07 +0000 admin http://www.roombavacuum.net/30/tenergy-14-4v-3800mah-nimh-battery-pack-for-irobot/
Tenergy 14.4V 3800mAh NiMH Battery Pack for IRobot Vacuum Cleaner 400 series such as Roomba 4905 --New!! A Screwdriver included

Average Rating:

Lowest Price

: 28.5

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: Tenergy

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:

Price Range

$ 28.5 - $ 28.5

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Tenergy 14.4V 3800mAh NiMH Battery Pack for IRobot Vacuum Cleaner 400 series such as Roomba 4905 --New!! A Screwdriver included Price Comparison

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Amazon.comFeatures and Benefits * NIMH High Power 14.4V 3800mAh rechargeable battery * 70 oC thermistor $ 28.5Visit Store

Description

Features and Benefits * NIMH High Power 14.4V 3800mAh rechargeable battery * 70 oC thermistor installed in the battery pack. Power will be cutt off if battery temperature beyond 70oC during charging to prevent from over charge. * 6 length wires is pre-installed for easy installation. * The battery is designed for exactly replacing inside battery pack for IRobot Vacuum cleaner. e.g Roomba APS 4905 battery. - To replace inside battery, you need to take off 4 screws on the case, then put new battery with solid connection. - Please make sure polarity of battery pack. Red wire is always connect to positive * TECHNICAL SPECIFICATIONS: - Votlage: 14.4V, made of 12 pcs High quality NiMH sub C cells. and packed by 2x6 configuration - Capacity: 3800mAh - Max. Discharging rate : 10 C at 33 A - Dimension: 136 mm L x 45 mm W x 45 mm H. - Weight: 38.5 Oz. * Battery Installation Instruction: Step 1: Loose up all srews on the top cover of the Roomba Advanced Power System. Tool: You need a triangle screw driver to do so. Step 2: Open and remove the top cover from the power system, which may be glued. Tool: You may need a flat screw driver to open it carfuelly Step 3: Remove the old battery inside. Three are wires with metal contact connected inside. You can remove the wires by pulling up the contat or cut wires off. Take a note of the wire connections Step 4: Put new battery into the battery case and solder three wire back to metal contacts. Follow the note taken in Step 3 or the following details for re-wire: - Red wire : battery positive - The red wire must go to the terminal farthest away from the battery - Black wire: battery negative - metal contact near edge - White wire: temp sensore - metal contact on other side Step 5: Put back the cover Step 6: Screws on the cover

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Where to Buy Tenergy 14.4V 3800mAh NiMH Battery Pack for IRobot Vacuum Cleaner 400 series such as Roomba 4905 --New!! A Screwdriver included

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Customer Reviews

Average Rating:

Reviewer: Jonathan J. Kim| Date:2009-05-30
It was a life saver to read all the previous purchasers and their stories. I was ready for the hassle of replacing non-user replaceable part. That readiness was sure needed as I wiggled a big knife through the glued up battery casing.

I am happy with the result. iRobot is an excellent product and they didn't use cheapest possible battery for their Roomba but this Tenergy batteries are one of the latest and it does hold the juice very well. Now I have my casing glue removed, I can forever keep my Roomba going. I love you iRobot! I hope you do more! My next lawn mower has to be from iRobot.
Review from Review from Amazon
Reviewer: Wrigleyville Dave| Date:2009-04-08
I, like some of the other reviewers, only got about 10 uses out of this battery before it quit holding a charge. By this I mean, it runs for 1 second and sings "come and find me"... which isn't as fun as usual because he will still be sitting at your feet. I used the roomba's service mode to run the wheels continuously to drain the battery down to zero. After a long day-long charge, it again rain for 1 second and stopped. No gain. Sad roomba.

The pain part is that it took forever to crack open my old APS battery as mine was very thoroughly sealed shut. I would recommend trying to open your battery before buying a kit like this to make sure you have one that is easy to open. Once open, the new battery kit does not fit quite right and required some force to get it in the old battery case. Then the new wires do not come with friction fittings or any other kind of connector.. just bare wires requiring soldering skills.. and a soldering iron.

Spend the extra $$ and get an irobot NiCD battery.. roomba just may not be compatible with the NiMH or I received a defective product. 2 stars if all you need is the triangular screwdriver and a blue and red doorstop.
Review from Review from Amazon
Reviewer: Ralph| Date:2009-04-06
this worked amazing for about 6 months of light use - it would run and run and run.
too bad that a few weeks ago, the run time went from 1.5 hour + to only about 10 minutes. I know NiMH batteries dont last forever, but with this light use it seems like i should have gotten at least a year's use from this
Review from Review from Amazon
Reviewer: ItsRossTime| Date:2009-02-28
Originally, I was very happy with the replacement cells for the Roomba APS battery, but after about 6 months of cleaning 3x per week runtime has decreased dramatically. Now, my scheduler discovery won't run for more than 15 minutes regardless of attempts to discharge and recondition.

As others have noted, if you plan on keeping your Roomba running, either buy the iRobot OEM battery and have it last a year and a half (like mine) or bite the bullet and find Li-ion cells.
Review from Review from Amazon
Reviewer: Dew| Date:2009-02-18
These batteries got used 5 times and then wouldn't hold a charge anymore. Now that iRobot has lowered their battery packs I'll be buying them from iRobot.
Review from Review from Amazon

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