Trimble 12 V Vehicle Adapter for Dual-Slot Battery Charger The Trimble 12 V Vehicle Adapter (P/N 89844-00) is a genuine power accessory that allows the Trimble Dual-Slot Battery Charger to operate from a standard 12 V vehicle power outlet . Ideal for charging batteries while traveling between jobsites or working in the field, it provides a convenient mobile charging solution for surveying and geospatial professionals. Key Features Powers the Trimble Dual-Slot Battery Charger from a standard 12 V vehicle outlet. Ideal for in-vehicle battery charging between jobsites and field locations. Provides a convenient mobile charging solution for surveying professionals. Genuine Trimble accessory engineered for dependable field performance.