Honda Pioneer SXS700M2P 2019 Owner's Manual page 195

The battery is located under the front seat.
Removal
1. Make sure the ignition switch is OFF (w).
2. Remove the front seat (page 122) and right side rubber dust
cover.
3. Release the ring and remove the rubber band.
4. Disconnect the negative (-) terminal lead from the battery first,
then disconnect the positive (+) terminal lead.
5. Remove the battery from the battery box.
6. Charge the battery (see the following section), unless you have
been driving regularly.
7. Store your battery in an easy-to-reach location off the floor, in an
area protected from freezing temperature and direct sunlight.
8. Clean the battery box after removing the battery for storage. Dry
the battery box.
9. Slow charge the battery (see following section) once every 30
days.
positive (+) terminal lead
rubber band
battery
negative (-) terminal lead
Servicing Your Honda
Battery
185