1. Energy ratio is relatively high. It has high storage energy density, which is about 6-7 times of lead-acid battery; 2. Long service life, service life can reach more than 10 years； 3. Very low self-discharge rate, can achieve less than 1% per month； 4. Light weight, about 20% of lead-acid products in the same volume; 5. High and low temperature adaptability, can be used in -10 ℃ - 40 ℃ environment； 6. Environment friendly, without any heavy metal included.