The Komatsu SK05J skid-steer battery size is Group 31, and it uses a 12-volt electrical system. Its 600 CCA rating is average for Komatsu skid-steers in this dataset.
ModelSK05J
BrandKomatsu
Voltage12 V
EquipmentSkid Steer
Voltage
12 V
Cold cranking
600 CCA
Battery size
Group 31
Battery location
See details below
How this battery compares
Compared with other Komatsu skid-steer battery ratings in this dataset.
Cold cranking amps600 CCA
Average
LowAverageHigh
Low 600 CCAMedian 600 CCAHigh 1050 CCA
BA
Battery specification
Model-specific replacement data
System voltage
12 V
Battery group size
Group 31
Cold cranking amps
600 CCA
RP
Replacement battery
What to match when buying
Use a heavy-duty 12 V starting battery in BCI Group 31 with about 600 CCA (or higher), provided the case dimensions, hold-down and terminal orientation match. AGM is a good upgrade for vibration resistance; verify the machine serial number before purchase.
LC
Battery location
Where the battery is mounted
The battery on the Komatsu SK05J-2 Skid Steer Loader is typically located under the operator's seat or in a side compartment for easy access.
ID
Model details
Equipment identity
Brand
Komatsu
Model
SK05J
Equipment class
Skid-Steer Loader
HOW
How to replace the battery
Basic replacement procedure
To replace the battery on a Komatsu SK05J skid steer loader, first disconnect the negative battery cable, then the positive battery cable, and finally remove the old battery. After that, install the new battery by connecting the positive cable first, followed by the negative cable.
!
Bad battery symptoms
Signs the battery may be failing
Common signs are slow or no cranking, repeated clicking from the starter/solenoid, dim or flickering lights/display, electronics resetting during crank, needing frequent jump-starts, rapid self-discharge, corroded/swollen battery case, or resting voltage that quickly falls under load. Confirm cable condition and alternator output before condemning the battery.
?
What battery size fits the Komatsu SK05J?
Quick answer
The official battery group size for the Komatsu SK05J Skid Steer Loader is Group 31. This battery is designed for deep cycle and marine applications, ensuring high performance for the loader.
?
How many CCA does the Komatsu SK05J need?
Quick answer
600 CCA. Best available fitment is based on closest same-brand/model-family match (SK820-5E0); an equal-or-higher CCA replacement is acceptable if the physical size and terminals match.
?
What voltage battery does the Komatsu SK05J use?
Quick answer
The Komatsu SK05J-2 skid steer loader operates on a 12-volt electrical system, as specified in its operating specifications.
?
Where is the battery on the Komatsu SK05J?
Quick answer
The battery on the Komatsu SK05J-2 Skid Steer Loader is typically located under the operator's seat or in a side compartment for easy access.
?
What is the best replacement battery for the Komatsu SK05J?
Quick answer
Use a heavy-duty 12 V starting battery in BCI Group 31 with about 600 CCA (or higher), provided the case dimensions, hold-down and terminal orientation match. AGM is a good upgrade for vibration resistance; verify the machine serial number before purchase.
Disclaimer: Battery specifications are for general reference and may vary by year, serial number or configuration. Always verify fitment and electrical requirements before purchase or installation. See the Komatsu website for manufacturer information.
