NTA2455, MCR18650, MH29654 Battery Replacement Compatible with Altec Lansing Inmotion iM600, Classic iMT620 & Max iMT702 Portable Speaker Systems for iPod & iPhone

Worked fine, radio is still good to go.

Did not like the lack of quality and workmanship! Poor soldering of all wiring to tiny circuit board panel beneath a flimsy cardboard cover held in place with shrink wrap!

This was the correct battery as far as size and capacity. I had to cut off the provided plug and solder on the original one, but that's not a big issue. There seems to be hundreds of variations on these types of plugs, so I never expect one to fit. It's almost impossible to find any battery with the same plug as the one you are replacing. as long as you have soldering skills, it's no problem.

I bought this for my Soundfreaq SFQ-04. Another reviewer mentioned he had to clip off the connector and then connect and solder the original Soundfreaq connector into place. That's what I did. And it worked - albeit with the extra wire and soldered connection I couldn't get the battery door on the Soundfreaq closed (it's partially closed and I used some electrical tape to seal it up). No doubt that if I had made the soldered connections smaller and used less of the wire I could have gotten a perfect fit. If I could do it again I would have removed the wires from both connectors (i.e. "depinned" the,) and then moved the wires (i.e. pins) into the old connector. If you google depinning connectors you'll see videos that show how to do it. It would be a neater install. I hope this helps someone else and remember to dispose of the old battery appropriately.

When my bluetooth speaker was new it's battery lasted for hours. Eventually the battery wore out & speaker would only last a few minutes on a charge. Clearly I needed a new battery.Bought this 'brand new' battery and my bluetooth speaker only lasts a few minutes on a charge - just like my old worn-out battery. Recharged & tested multiple times over multiple days & same result: this 'brand new battery' has probably been sitting on a shelf for years and doesn't last.

Battery arrived very promptly, was very easy to install in my IMT620, and performs as well as the original battery did. now I have music again as I did before I needed more words than necessary...

I was glad that the battery was exactly the right battery for the item and I was able to give the radio/iPhone speaker to a friend that needed one

Did not get to use battery wrong size adapter on it. Could not return it.