The New Holland TC21 tractor battery spec found is 12 V, Group 51, with 400 CCA.
Voltage12 V
Group size51
Cold cranking amps400 CCA
New Holland TC21 Battery Size Details
Replacement battery recommendation
The best replacement battery for the New Holland TC21 Compact 24M Lawn Mower and Tractor is the AJC-U1-24M-202602. – 12 V, Group 51, 400 CCA
Battery voltage
12 V
Battery group size
51
Battery CCA
400 CCA
Battery CCA Comparison Chart
Battery CCA comparison
This model
400 CCA
Average
300 CCA
Low
230 CCA
High
500 CCA
Benchmarks use practical low, average and high cold-cranking-amp ranges for the lawn/garden tractor category. Use the exact battery label and manual before buying.
New Holland TC21 Extra Battery Notes
Replacement note
For the New Holland TC21, match the replacement battery to the captured spec: 12 V, Group 51, 400 CCA. Physical fit, terminal layout and hold-down fit still matter
Battery location
The battery on the New Holland TC21 tractor is accessed by unlatching and opening the hood forward to reach the battery compartment in front of the radiator
Battery replacement steps
The battery on a New Holland TC21 tractor is typically accessed by unlatching and opening the hood forward to reach the battery compartment in front of the radiator. Always use an extra prop to hold the hood open securely and consult the operator’s manual for model-specific safety instructions before servicing
Bad battery symptoms
Common symptoms of a bad battery in a New Holland TC21 tractor include slow cranking, flickering lights, and intermittent starting issues. These problems often indicate a weak or discharged battery, corroded terminals, or faulty connections
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 newholland.com website before ordering a replacement battery.
