Expanded metal grid Higher cranking power Resists grid corrosion Resists over-charging Minimal gassing and water usage Less self-discharge Resists thermal runaway Premium grade alloy Best grade calcium-calcium-tin alloy Ensures better conductivity & extends battery life Ensures desired purity to prevent high self-discharge Helps to bring water loss close to zero Double chamber lid Works as condensation chamber for outgoing water molecules Prevents leakage and contamination Include permanent flame arrestor to prevent accidental explosion from external sparks or flame Holds magic eye Centered cast-on-strap plate Stronger than the thinner gas-burnt conventional connectors Reduces lever action movement resulting from road shock Low resistance envelope separator Encapsulate positive plates Improve vibration durability Prevent ‘treeing’ and internal shorting between positive and negative plates Flame arrestor Flame arrestor prevents accidental explosion from external sparks or flame Minimizes acid leakage through side vent Prevents inflow of dust Magic eye Magic eye helps to understand battery health O green-battery ok O black-recharge O white-check Standard packing in pallets