Chosen Solution

I have this extended battery dismounted. Is there any way of assembly as single batteries ? I have simple put the connector together with the battery and was working, but when I take off to try another one, it stopped working.

http://imgur.com/a/7uQZ5

@garrincha07 sounds to me like the circuitry of the “smart battery” is not longer working. Remember that these batteries also provide feedback about their charge etc. I’d get a new battery.