Quick answer:
The Case IH C55 tractor battery spec found is 12 V with Group 31 battery sizing.
Voltage12 V
Group size31
Case IH C55 Battery Size Details
| Replacement battery recommendation | The best replacement battery for the Case IH C55 tractor is a PLOMO/ACIDO battery of 110 Ah, such as the VARTA I2, which is compatible and offers reliable performance. – 12 V, Group 31 |
|---|---|
| Battery voltage | 12 V |
| Battery group size | 31 |
Case IH C55 Extra Battery Notes
| Replacement note | For the Case IH C55, 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 Farmall C55 tractor is typically located under the left side of the fuel tank |
| Battery replacement steps | To replace the battery on a Case IH C55 tractor, first disconnect the negative terminal followed by the positive terminal. Then, remove any securing brackets or covers, lift the old battery out, and place the new battery in, securing it and reconnecting the terminals in reverse order |
| Bad battery symptoms | Common symptoms of a bad battery in a Case IH C55 tractor include hard starting or no response when trying to start, clicking sounds indicating insufficient power, and visible corrosion on battery terminals. Additionally, if the battery is unable to hold a charge or shows low voltage readings, it may need to be replaced |
| 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.

