Is my 24V battery compatible with this unit? All 24V batteries below 5Ah will work with all of our 24/48V units. A different Amp battery will have a different run time depending on the amperage. Related articles The battery is charged but the unit isn't turning on. Understanding Wear & Tear Parts on Your Shop Joe® Product Is there a faster charger to charge my battery? My Cordless Grass Trimmer is not operating properly, what do I do? How do I adjust the multi-angle grass trimmer head?