Honda FourTrax Rancher TRX420TM1 2020 Owner's Manual page 195

The battery is located in a compartment under the rear fender cover.
UNDER REAR FENDER COVER
(1) rubber band
(2) negative (–) terminal lead
Removal
1. Make sure the ignition switch is OFF (w).
2. Remove the seat (page 114).
3. Remove the rear fender cover (page 117).
4. Release the rings and remove the rubber band (1).
5. Disconnect the negative (–) terminal lead (2) from the battery (3)
first, then disconnect the positive (+) terminal lead (4).
(2)
(3) battery
(4) positive (+) terminal lead
Servicing Your Honda
Battery
(1)
(3)
(4)
(cont'd)
185