A small relay with an in built microprocessor that controls the charging between multiple batteries. Once the primary battery is charged the charge is paralleled and the auxiliary battery is charged.
12 & 24V Systems
Max Alternator Amps: 140A
Microprocessor Controlled
Provides Priority for charging only the starter battery first
Prevents excessive discharging of the starter battery
Automatic detection of 12V or 24V DC systems
Bi-Directional - If a battery charger is connected to auxiliary battery then starter battery will be charged.
Over Voltage Protection - If exceeds 16V (32V) relay will shut off
Battery Connection: 2 x M6 Studs / Other Connections: 6.3mm Spade