Very low voltage drop battery combiners (diodes) and automatic battery isolators. 2 Batteries. Max power delivered by each battery: 140A. Alternators: 2. Max voltage: 100V. Size: 65x127x236mm. They can charge more than one battery simultaneously, giving preference to the battery with the lowest charging level. Electrical separation of each battery to avoid the one with highest charge level to flow into the one with lowest charge level. Aluminium body, wide finning suitable for dispersing heat efficiently.