Charger works in both 12 and 24 volt The boost starter i havent tested
Clarke Jump Start 900 - 12V Portable Jump Starter Unit
Clarke Jump Start 4000 Battery
Clarke Jump Start 910 with Inbuilt-in Air Compressor
Clarke Jump Start Micro 200 multifunctional 7.5AH
Clarke Jump Start 4000
Faulty Clarke Jump Start 910 with WORKING 6-FM-18 Battery *SPARES ONLY*