Generic iRobot Roomba Replacement Internal Battery Pack for Battery 4905. Fits Discovery, Sage, Red, and Dirt Dog Models
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Kitchen and Housewares Reviews of Generic iRobot Roomba Replacement Internal Battery Pack for Battery 4905. Fits Discovery, Sage, Red, and Dirt Dog Models
Customer Review: DO NOT BUY. Does not keep a charge.
Summary: 1 Stars
I bought them, had high hopes of having a cheap option to the official Roomba battery.
Installation isn't totally easy because the plastic cap over the battery was glued all the way around -- took a while to open it. If it had actually worked as promised, this would have been OK.
But I plugged it in, ran it the first day. I don't know how long the battery lasted, but it seemed to be working fine. I charged again. A few days later I ran it, seemed to work. Charged again.
Third time: The charge lasted about 15 seconds, the Roomba complained and died.
Can't charge it any more, can't run it any more.
I've contacted the company for a refund/replacement, we'll see what happens.
Customer Review: Good replacement - skill needed to install
Summary: 5 Stars
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.
Customer Review: Save money: Do it yourself.
Summary: 4 Stars
This is a good alternative to paying extortion prices for a replacement battery from I-Robot. A few caveats:
1) No instructions with the battery pack. In addition to the handy screwdriver, the seller could have included an instructions sheet.
2) The original battery was practically impossible to open! It was glued shut and I had to take a chisel and hammer to break into the damned thing.
I didn't get the 3400mAH upgrade some of you got, which would have been nice, but I payed for the 2400mAH so I shouldn't complain.
On the plus side, I don't have a soldering gun so I just spliced the wires together and the battery seems to be working fine.
Customer Review: Does require a bit of skill
Summary: 4 Stars
As others have mentioned, the battery case is hermetically sealed. A couple of regular screwdrivers will get it open with a few minutes of careful prying. The replacement pack comes with short leads. It's probably easier to connect the old leads to the new ones and use the heat shrink tubing on the connections. I chose to desolder the old contacts and solder the new leads to the contacts. It's tight working quarters in there and in hindsight wished I had just spliced the wires together.
I give it 4 stars, not for the effort level, but for the lack of documentation.
Customer Review: Works but doesn't hold charge long
Summary: 3 Stars
The product was as advertised and the addition of rubber jackets and the ends of the leads was a nice addition so that soldering wasn't necessary. The 2400mAh is only sufficient for about 1 hour's worth of operation compared to nearly 2 hours for the manufacturer's battery (which I'm guessing is 3000mAh although it's not advertised).
Although it's not the fault of this battery manufacturer, opening the Roomba battery pack can be very difficult. The plastic case is glued shut and requires extensive effort to open without damaging it. I used a Dremel to cut it open.