FT825-78
  • 12-volts
  • 78 Group Size
  • 135 mins @ 25 amps
  • 22 mins @ 75 amps
  • 52 AH @ 5HR
  • 65 AH @ 20HR
  • 1000 CA @ 32°C
  • 825 CCA @ 0°C
FT825-78

FT825-78 High Capacity Dual Purpose AGM Battery

Cycling Capacity
20 hour rate 65 Amp Hours
Reserve Capacity
@ 25 Amps 135 minutes @ 75 Amps 22 minutes
Mechanical Specifications
Group Size 78
Terminal Type M8 (w/ TP28 Brass AP Included)
Total Height 7.36" (187 mm)
Height 7.20" (183 mm)
Width 6.77" (172 mm)
Length 10.28" (261 mm)
Weight 45.9 lbs (20.8 kg)
Case Type ABS Plastic - Flame Res Rating UL94-HB
Discharge Table (Constant Current)
Time Amps Rate
20 hr 3.3 0.05 CA
10 hr 5.8 0.1 CA
8 hr 7.1 0.13 CA
5 hr 10.4 0.25 CA
3 hr 18 0.33 CA
2 hr 21.8 0.5 CA
1 hr 47 1 CA
Electrical Specifications
Nominal Voltage 12 Volt
Capacity @ 100 hour rate 72 AH
Capacity @ 20 hour rate 65 AH
Capacity @ 10 hour rate 58 AH
Capacity @ 5 hour rate 52 AH
CCA 825
CA or MCA 1000
Short Circuit Current 2138 Amps
Internal Resistance 2.5m Ω
Charge Voltages
Battery Voltages
Charge Stage 12V 24V 36V 48V
Bulk 14.7 V 29.4 V 44.1 V 58.8 V
Absorption 14.7 V 29.4 V 44.1 V 58.8 V
Float 13.6 V 27.2 V 40.8 V 54.6 V
TC Factor: -4mV/°C/cell
Temperature Range Specifications
Condition Recommended Maximum
Storage -15°C to 50°C -40°C to 71°C
Operation -15°C to 40°C -40°C to 71°C
Charge with TC -15°C to 50°C -40°C to 71°C
Charge without TC 0°C to 40°C -15°C to 50°C
Terminal Torque Specifications
Terminal Type ft-lbs in-lbs Nm
AP | DT (AP) | M6 | M6M (stud) | TP07 (AP) | TP08 (AP) 4.2 - 6.7 50-77 5.6 - 7.16
FR45 6.0 - 7.12 70-97 7.9 - 10.8
M8 | LT 7.1 - 8.7 85-102 9.6 - 10.14
DT (stud) | M10M (stud) 9.2 - 10.11 110-132 12.2 - 14.7
  Name Size
Charging Instructions Icon Charging Instructions 1.1 MB
Installation Manual Icon Installation Manual 1.7 MB
Spec-sheet Icon Spec-sheet 1.5 MB
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