Tenergy 14.4V 2400mAh NiCD Battery Pack for IRobot Vacuum Cleaner 400 series such as Roomba 4905 --- New!!! A Screwdriver Included!

Other Tenergy products

Product Features

• Compatible with all Roomba FloorVac models.
• Up to 75 minutes run time
• Can be recharged up to 1000 cycles.
• Designed for exactly replacing inside battery pack for IRobot Vacuum cleaner. e.g Roomba APS 4905
• Screwdriver is included for replacing the battery

Product Details

• Shipping Weight: 12.8 ounces (View shipping rates and policies)
• ASIN: B001AVQP8Y
• Item model number: 91050
• Average Customer Review: 4.2 out of 5 stars  See all reviews (24 customer reviews)
• Amazon.com Sales Rank: #51,463 in Kitchen & Dining (See Bestsellers in Kitchen & Dining)

Product Description

Product Description

Features and Benefits * 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. * Can be recharged up to 1000 cycles. * 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 NiCD sub C cells. and packed by 2x6 configuration - Capacity: 2400mAh - Max. Discharging rate : 10 C at 24 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

Customer Reviews

Most Helpful Customer Reviews

6 of 6 people found the following review helpful:

5.0 out of 5 stars Helped me save some money!, September 3, 2008

By	R. Copenheaver "Pedal2Metal" (York, Pa.) - See all my reviews (REAL NAME)

I ordered this replacement battery since I can solder some wires and am mechanically inclined to some degree. The iRobot people wanted too much money for their replacement to fit my old Roomba; this battery met my needs. Like I said, if you enjoy tearing your old Roomba down to tune it up etc, you'll prolly be fine twisting 3 wires together and soldering them. The company who shipped my battery forgot to ship along the funky triangle tip shaped screwdriver. They did mail one out a week or so later, which was nice of them! I got excited though, and couldn't wait for the special screwdriver, so I simply drilled out the old screws that hold the battery case together and just used black electrical tape to hold it together and that worked great! The new battery is holding up well and charges up fast! I'm happy I ordered this replacement.

6 of 6 people found the following review helpful:

5.0 out of 5 stars So far So good, better performance than the original Battery, August 25, 2008

By	R. John (San francisco, CA) - See all my reviews (REAL NAME)

Got this item from amazon. The seller upgraded the order to 3400mAH for free. Like the others mentioned, you have to be carefull opening the battery as it is glued. Once it is opened then it is simple procedure of soldering the 3 connection. Write down how the layout is or better take a close up picture. SO you don't connect the black wire where the red one is supposed to go.
After the first charge (about 3-4 hours), the roomba just kept going and going for a long time. I wanted to discharge it totally before recharging it.
Great deal for 29.95

6 of 6 people found the following review helpful:

5.0 out of 5 stars Good replacement - skill needed to install, August 9, 2008

By	Daniel P. Mcgrath (Chester, VA USA) - See all my reviews (REAL NAME)

I got this battery pack after my second Roomba battery started running short. I was pleasantly surprised to receive a free upgrade to the 3800 mAh pack instead of the 2400 mAh I ordered. A bonus in the package was the special triangular screwdriver to get the battery case apart. The order was received one week after ordering, another plus.

Installation was a little tricky, some fiddling with a pair of flat-tip screwdrivers to get the case apart. You'll need a soldering iron to re-attach the connections and a bit of patience to get the case back together, but it sure beats $70 for an out-of-stock battery from IRobot. There are some rough instructions on www.all-battery.com website.