this is a model of a standard Li-Ion Battery. The mesh is very detailed, as an example there is a hole in the metal part of the plus pole or the circular dent around the battery as well under the plus pole. The texture is drawn near to the real Li-Ion and the materials are close to that. Usable could the mesh also be for Games, but I can't guarantee that. If you want to have more details in renders you can also increase the subdivision surface modifier, which should work from a grade of 1 to 6 (I couldn’t test any further my PC is not beefy enough XD). You can see the result of those tests in the image view above. Also, this model is working in the cycles or eevee render engine. The first preview picture was made with cycles and the second in eevee. Unfortunately, not all the UVs are completely unwrapped just the important ones. So, it is easy to just switch the side coating of the battery, but it won’t be that easy to change the Texture of the coating on the pole caps, but it won’t matter if you texture them in one color (Sry I just have to be honest). I really hope this won’t be a problem for you.

I hope you like this model and if you do so or don’t just write me in the comments or via CGTrader. Also feel free to ask me anything I always have an open ear!