1. Environmentally friendly 2. Completely maintenance-free 3. Non-spillable construction design. 4. Wide operatingtemperaturerange(-20¡æ~+60¡æ) 5. Longer life(10-12years designed life) 6. Explosion proof 7. Valve regulated & high discharge rate capability 8. Low self discharge 9. Independent of position 10. Ease of shipment 11. No need of balanced charge or boost 12. No memory Size:710*350*345*390mm Weight:197kg Certificate:iso, ul, ce