Battery Comparison of Energy Density
Energy Density Comparison of Size & Weight. The below battery comparison chart illustrates the volumetric and specific energy densities showing smaller sizes and lighter weight cells. Specifications by Battery Chemistry. Specifications Lead Acid NiCd NiMH Li-ion; Cobalt Manganese Phosphate; Specific Energy Density (Wh/kg) 30-50: 45-80: 60-120: