The Cart Fan (DTS-CFAN) includes a 3.7 V 2600 mAh rechargeable battery. With normal use, this battery should operate for several years before requiring replacement. The Cart Fan Replacement Battery (DTS-CFAN-BAT) is the correct replacement battery.
Replacing the battery is a simple process.
1. Opening the battery door by removing the small Phillips screw.
2. Unplug the battery from the circuit board and slide the battery out.
3. Slide the new battery in and plug it into the circuit board terminal.
4. Replace the battery door.