The Komatsu SK05 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.
How this battery compares
Compared with other Komatsu skid-steer battery ratings in this dataset.
Battery specification
Model-specific replacement data
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.
Battery location
Where the battery is mounted
The Komatsu SK05 skid steer loader battery is typically located under the operator's seat or in a side compartment for easy access. Komatsu offers a range of starter batteries for skid steer loaders, including options for harsh conditions, through its branch network and authorized dealers.
Model details
Equipment identity
How to replace the battery
Basic replacement procedure
To replace the battery on a Komatsu SK05 skid steer loader, first ensure the ignition is off and the parking brake is engaged. Disconnect the negative terminal first, followed by the positive terminal, then remove the old battery and install the new one by connecting the positive terminal first, then the negative. manuals.plus
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 SK05?
Quick answer
Komatsu SK05 skid steer loader batteries are Group 31 deep-cycle units designed for marine and RV applications.
How many CCA does the Komatsu SK05 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 SK05 use?
Quick answer
12 volts. Skid-steer starting/charging systems for this model family use a 12 V battery system; confirm serial-specific configuration before replacement.
Where is the battery on the Komatsu SK05?
Quick answer
The Komatsu SK05 skid steer loader battery is typically located under the operator's seat or in a side compartment for easy access. Komatsu offers a range of starter batteries for skid steer loaders, including options for harsh conditions, through its branch network and authorized dealers.
What is the best replacement battery for the Komatsu SK05?
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.





