TM 5-3820-236-24-4 BATTERY TABLE 6 BATTERY CHARGING GUIDE 6 and 12 Volt Low Maintenance (Conventional Batteries) Recommended Rate* and Time for Fully Discharged Condition Rated Battery Capacity Slow Charge Fast Charge (Reserve Minutes) 80 Minutes or Less 14 Hours @  5 Amperes 1-3/4 Hours @ 40 Amperes 7 Hours @ 10 Amperes 1 Hour @ 60 Amperes Above 80 to 125 Minutes 20 Hours @  5 Amperes 2-1/2 Hours @ 40 Amperes 10 Hours @ 10 Amperes 1-3/4 Hours @ 60 Amperes Above 125 to 170 Minutes 28 Hours @  5 Amperes 3-1/2 Hours @ 40 Amperes 14 Hours @ 10 Amperes 2-1/2 Hours @ 60 Amperes Above 170 to 250 Minutes 42 Hours @  5 Amperes 5 Hours @ 40 Amperes 21 Hours @ 10 Amperes 3-1/2 Hours @ 60 Amperes Above 250 Minutes 33 Hours @ 10 Amperes 8 Hours @ 40 Amperes 5-1/2 Hours @ 60 Amperes *Initial rate for standard taper charger. TABLE 7 BATTERY CHARGING GUIDE 12 Volt Maintenance Free Batteries Recommended Rate* and Time for Fully Discharged Condition Rated Battery Capacity (Reserve Minutes Slow Charge Fast Charge 80 Minutes or Less 10 Hours @ 5 Amperes 5 Hours @ 10 Amperes 2-1/2 Hour @ 20 Amperes 1-1/2 Hours @ 30 Amperes 1 Hour @ 45 Amperes Above 80 to 125 Minutes 15 Hours @ 5 Amperes 7-1/2 Hours @ 10 Amperes 3-3/4 Hours @ 20 Amperes 2-1/2 Hours @ 30 Amperes 1-3/4 Hours @ 45 Amperes Above 125 to 170 Minutes 20 Hours @ 5 Amperes 10 Hours @ 10 Amperes 5 Hours @ 20 Amperes 3 Hours @ 30 Amperes 2-1/2 Hours @ 45 Amperes Above 170 to 250 Minutes 30 30 Hours @ 10 Amperes 15 Hours @ 10 Amperes 7-1/2 Hours @ 20 Amperes 5 Hours @ 30 Amperes 2-1/2 Hours @ 45 Amperes Above 250 Minutes20 20 Hours @ 10 Amperes 10 Hours @ 20 Amperes 6-1/2 Hours @ 30 Amperes 4-1/2 Hours @ 45 Amperes *Initial rate for standard taper charger CTS-4111B -  Page 14