Li-Ion vs Li-Polymer vs Ni-MH: Which Battery Chemistry Is Right for Your Device?
Sep 29, 2026
BATTERY TECHNOLOGY GUIDE
Li-Ion vs Li-Polymer vs Ni-MH: Which Battery Is Right for Your Device?
Compare Li-Ion, Li-Polymer and Ni-MH rechargeable batteries and learn how to select the right chemistry for your custom battery pack.
Choosing the Right Battery Chemistry
Battery chemistry is one of the first decisions to make when developing a custom battery pack. Li-Ion, Li-Polymer and Ni-MH batteries all provide rechargeable power, but they have different characteristics in terms of energy density, voltage, size, weight, shape flexibility and application requirements.
The right choice depends on your device design, required runtime, available installation space, voltage, capacity, weight requirements and operating environment. A battery manufacturer can also help evaluate the cell conf...
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