The Case IH 785 tractor uses a 12-volt electrical system. An exact CCA or Ah rating was not confirmed in the source material used for this page. Published electrical details include negative ground, Alternator (45 A).
Model785
Years1985-1990
Voltage12 V
ConfidenceMedium
Voltage
12 V
BA
Battery specification
Published model / family battery data
System voltage
12 V
Ground
Negative
CH
Charging system
Alternator and charging information
Charging system
Alternator
Charging output
45 A
ID
Model details
Identity and research coverage
Model
Case IH 785
Equipment class
Utility
Series
85 Series
Model years
1985-1990
Research confidence
Medium
BUY
Choosing a replacement battery
Fit and electrical rating both matter
Match voltage, case dimensions, terminal layout and hold-down first. Keep the replacement at 12 V, but verify CCA/Ah from the tractor's battery label or service manual because the exact rating was not confirmed here.
1. Voltage
Use the verified system voltage shown above.
2. Physical fit
Match battery tray dimensions, height and hold-down style.
3. Terminals
Confirm positive/negative terminal positions before buying.
4. Starting power
Meet or exceed published CCA when a confirmed CCA is available.
5. Multiple batteries
When the tractor uses two batteries, replace weak/mismatched pairs thoughtfully and confirm the factory cable arrangement.
?
What does the Case IH 785 45 A alternator mean?
Quick answer
The charging system is rated at 45 A. That figure tells you the system’s maximum charging/accessory output, not the current constantly forced into the battery.
Research note: 585 source confirms 12 V and 45 A for the 85 Series family; exact CCA was not published there.
Disclaimer: Specifications are provided as a reference from published manufacturer, service-manual and reference information. Verify critical service values with Case IH or the correct service manual. Case IH website
