How long will the 24V-X2-DTS15 run with 2 x 4.0-Ah batteries? With our 24V 4.0-Ah Batteries, the 24V-X2-DTS15 will have a run time of up to 20 minutes! Related articles Will my old Plug-in charger (ICHRG24-AC) work with my new battery? My Cordless Dethatcher is not operating properly, what do I do? Is my 24V battery compatible with this unit? 24VBAT-XR8 and 24VBAT-XR12 Charger Compatibility Dethatcher Troubleshooting