The Fenix ARE-A4 offers space for 4 rechargeable batteries of very different sizes and types. The display shows for each battery installed what type it is and what voltage it has. Charging current and charging time can also be displayed per battery. A mains cable is supplied as standard and for use on the road the ARW-10 can be ordered separately; this ensures that the charger can also work via the 12/24 V connection. The ARE-A4 works with Ni-MH, NiCd and Li-ion batteries.