Ecovacs Deebot DM88 battery replacement

 I bought the Deebot DM88 in 2017.

Since then it was probably cleaning at least once per week.

For the last months the cleaning time is around only 20 minuits. (Rated cleaning time is 90 minutes)

The battery capacity got less, so I decided to buy a replacement battery:

The Battery cell is a BH-SC3000P from BYD: Ni-MH; SubC; 1.2V; 3000mAh; Ø23x44mm

I have found a datasheet on tme.eu

Chris Cable shows in his video where the battery is sitting, so you can exchange it. He is not showing it on the DM88, but another Deebot model:

I have found the pack on Amazon. Deebot M88 Battery pack But the shop has only 10 ratings the last in 2020. I think it is not legit.

I found battery pack to on that scam website: www.batteryupgrade.pl

On trustpilot you can see that this shop operates unfair and against rules.

An another shop where it is sjown as sold out: needparts.eu

Due to that i will look for the battery cell (BH-SC3000P or from another producer from Aliexpress) itself.

On Amazon these kind of cells are much more expensive then ordering them from Aliexpress.

If the cells have no terminal lugs I will have to use a spot welder connecting the cells myself, like shown in that video.

If the cells have terminal lugs I will solder them together.

So for now I will wait till the cells arrive (05.08.2022)

I ordered 12 cells (only 10 needed) in case there is a bad one i have two spare cells. I do not want to pay high shipping costs (around 20USD) again just for one more cell.

30.07.2022

Cells arrived.
I used a soldered the cells with the existing connection fanes.
But i did not like that way so much. 

For the next project i will try a spot welder for Battery cells.

The robot has now enough capacity again and works fine :D .

How does the Deebot DM88 look from inside?

The exploded view for the Deebot M88 Ecovacs from krempl.com

I have also opened the Deebot M88 to clean it from inside. Here are the pictures: