2. Low self-discharge <2% per month
3. No memory effect
4. Steady discharge and charge performance
5. Outstanding thermal and chemical stability
6. Wide temperature performance
7. Protections of short circuit, overcharge, over-discharge, over-current, etc.,
8. Lightweight – weigh only 1/2~1/4 of lead-acid batteries
9. Easy carrying and installation in any direction
10. No change requirement to a lead-acid battery charging system
11. Better safety – no explosion, no fire, free of leakage
12. Ecologic – no poisonous lead, no acid, no heavy/rare metals, no gassing, no toxic substances