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without the sensor I could not make it work. it seems the robot is looking for some signals from this sensor. I bought a cheap battery pack on amazon and it works great. I did open it up and there are 2 little devices.One needs to connect in series with neg and pos battery terminal as you would connect all batteries in series but with this little device in between the - and + terminal. I did not connect this device and it does not move and it should. it seems it is confusing. I just buy 2 extra packs and just replace it as needed to mop the entire house.
Upgrade your Mint Plus-iRobot Braava robot mop using 3D Printing
I use regular Eneloop batteries (not pro) and it works great. I first tried 2700 mAhr Powerex Ni-MH batteries and the unit would run for about 5 seconds then squawk at me. The Eneloop batteries work great and run for a long time. I charge them in my Ni-MH charger, but am wondering if there is any problem charging them on the Braava charger. I did not install the temperature sensor when I built the pack because I wasn't intending on charging them with the Braava charger. But it's inconvenient to remove them for each charge, so I have changed my tune. I believe I will need to install the sensor before using the Braava charger to be safe. I still have the sensor from an old pack, but now I don't know how to connect it.
Here are some images of my modified holder. The wires of the raw holder normally come out on the right side in the first picture. I routed the wires to the opposite side through existing holes in the holder. It may require carefully bending the soldered terminals away from the current hole for the wires, so you have some room to pull them out of that hole to the internal part of the holder. I then glued the wires in the corner of the channel and out the holes on the other side.The reason I rerouted the wires is because the opposite side has only one center contact on the outer part of the holder. This is that area that needs to be trimmed to fit around the screw receptacle of the Braava unit. I used a Dremel tool and a round file to make the rounded area as seen in the second photo. Be sure to do this work before running the wires out that side of the holder. You need to be careful not to remove too much where the contact is. I used a pair of heavy scissors to cut a little plastic from the corner that will be next to the Braava's mating connector when mounted in the unit. I also filed an angle on that corner to minimize interference with the mating connector.The screw receptacle on the Braava also needs sanded down some as shown in the third picture to make the holder fit. I was reluctant to do this because you don't want to mess up the main unit. You can throw the holder away if you fail.To get it to fit the opposite side of the holder needs sanded down some also as shown in the 4th photo. I probably could have sanded this down a little more and backed off a little on the rounded are in photo 2.I ordered the connector and pins to make a new connector. You simply crimp the end of the wires on the pins and insert them in the connector.Photo 5 shows the connector installed and the orientation of the holder prior to installing. Photo 6 shows the completed unit installed in the Braava. I've tucked the wires in, but if I were to do this again I would probably shorten the wires. You only need enough wire so you can plug the connector in when the holder is out of the unit. The holder wire even when routed to the other side of the holder provides more than enough wire. The fit is tight enough that you don't really need the custom cover, but it looks so much nicer with the cover.This unit doesn't have the sensor installed. If I can figure out how to wire that up, I may make another one of these. I ordered three holders and this was my second effort, but I kind of wish I would have ordered a few more as I think I can do better than this and I need one with the sensor installed.
Have you try to use High-performance Panasonic Eneloop batteries 2500 mA model listed below. I would like to know if it is compatible with Braava quick charger and how long it would take to charge the batteries. If these batteries use Panasonic charger like the one BQ-CC16 then it would take up to 4h to be fully charged. https://www.amazon.com/Panasonic-BK-3HCCA4BA-Pre-C...Thanks
No sorry. But the packs are easy to modify with a little bit of patience. You can buy the battery covers on Shapeways if you need them printed. Thanks.
Any chance you are still selling the pre-made battery packs and covers?
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