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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/ Electronics / Tenergy 14.4V 3800mAh NiMH Battery Pack for IRobot Vacuum Cleaner 400 series such as Roomba 4905 --New!! A Screwdriver included
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
Customer Reviews:
Avg. Customer Rating: 3.0 / 5.0
Worth the effort and $$$:
Thanks to those who have shared their know-how. I followed the posted instructions to replace the APS battery with the Tenergy 14.4V 3800mAh NiMH battery pack for my Roomba Scheduler during the holiday break (took me 3 hours from start to finish) and ever since it runs like a charm - I mean it cleans up 4 rooms and still has some juice left.
No legs on this battery:
After only 4 months of steady use the cleaning cycle duration supported by the battery can be measured in seconds. In contrast, the original battery lasted about 1 year under a load of 4-5 cleaning cycles per week. Even at twice the price, the authentic Roomba battery is a better buy.
THey do not last like the ones from IRobot:
I purchased this kit last August and it is now December. In a short 4 months my roomba is already showing signs of a dying battery so I will have to purchase another. I run my roomba about 4-5 times per week- there is no way the battery should be failing so soon. With batteries from IRobot they would last nearly a year before I had to replace them. The IRobot battery is about twice the cost of this kit, but if it only lasts 4 months then you will have to buy three kits per year. Even though the web site... more info
Works wonder, but like everyone said opening the APS case is difficult.:
It doesn't come with any instruction manual at all, but I for one propably think the same as the seller of this item. If you even had the thought to replace the battery inside the APS unit, you probably had all the knowledge to do so without any instruction manual.
Wires are clearly color coded, so its impossible to miss the positive/negative/ground.
They protect the end of each wire properly, its a good thing to know for some people out there that short circuiting 12 cells (14,4V) that can... more info
