Quick answer:
The Case IH Magnum 380 tractor battery spec found is 12 V with Group 31 battery sizing.
Voltage12 V
Group size31
Case IH Magnum 380 Battery Size Details
| Replacement battery recommendation | 12 V, Group 31 |
|---|---|
| Battery voltage | 12 V |
| Battery group size | 31 |
Case IH Magnum 380 Extra Battery Notes
| Replacement note | For the Case IH Magnum 380, match the replacement battery to the captured spec: 12 V, Group 31. Physical fit, terminal layout and hold-down fit still matter |
|---|---|
| Battery location | The battery on the Case IH Magnum 380 tractor is located beneath the foot plate, which requires removing the plate to access the battery. This design can make battery replacement more challenging |
| Bad battery symptoms | Common symptoms of a bad battery in a Case IH Magnum 380 tractor include slow cranking when starting, dim dashboard lights, and failure to start despite a charged battery. Regularly checking battery connections and voltage under load can help identify these issues |
| Safe removal note | Disconnect the negative cable first, then disconnect the positive cable. Install the new battery, connect the positive cable first, then reconnect the negative cable last. That reduces the chance of shorting a tool against the frame |
Official information note
Mistakes do happen. Battery specs can change by year, engine, market, terminal layout and installed options. Check the old battery label, operator manual, parts book and official caseih.com website before ordering a replacement battery.

