SPECIFIC GRAVITY BATTERY CHART SPECIFIC GRAVITY VALUES CAN VARY + OR - .015 POINTS OF THE SPECIFIED VALUES. THIS TABLE IS FOR THE TROJAN l-15 BATTERY IN A STATIC CONDITION, NO CHARGING OR DISCHARGING OR CHARGING WILL VARY THESE VOLTAGES SUBSTANTIALLY. Source - Trojan Battery Company

Percentage of Charge 12 volt Battery Voltage 24 volt battery Voltage Specific Gravity 100 12.7 25.4 1.265 95 12.64 25.25 1.257 90 12.58 25.16 1.249 85 12.52 25.04 1.241 80 12.46 24.92 1.233 75 12.4 24.8 1.225 70 12.36 24.72 1.218 65 12.32 24.64 1.221 60 12.28 24.55 1.204 55 12.24 24.48 1.197 50 12.20 24.40 1.190 45 12.16 24.32 1.183 40 12.12 24.24 1.175 35 12.08 24.16 1.169 30 12.04 24.08 1.162 25 12.00 24.00 1.155 20 11.98 23.96 1.148 15 11.96 23.92 1.141 10 11.94 23.88 1.134 5 11.92 23.84 1.127 Discharged 11.90 23.80 1.120