Booster WA 121545 (Motorhome)

The Booster WA 121545 is a clocked step-up/step-down converter with a very high level of efficiency. It balances the volatile alternator voltage and provides a high charging current. The booster is perfect for charging lead-acid, lead-gel, AGM1, AGM2 and lithium batteries while driving with 12 V mains power. If a battery temperature sensor is connected, the charging voltages are adapted to the battery’s temperature. To guarantee optimal charging, both the voltage of the living area battery and the voltage of the starter battery are measured with a voltage sensor. Scope of delivery: all accessories except the connection cables.

Charging characteristic: IUoU (power-dependent switch to charge retention)

Adjustable battery types:

• Lead-acid battery: 14.4 V/13.4 V
• Lead-gel battery: 14.4 V/13.8 V
• AGM1 battery: 14.4 V/13.8 V
• AGM2 battery: 14.7 V/13.7 V
• Lithium battery: 14.4 V constant (CCCV or IU characteristic for LiFePO4 batteries with an autonomous battery management system

Temperature compensation: automatic after connecting the temperature sensor, maximum charging voltage then: 15.0 V

Input voltage range: 12.0 V – 15.0 V

Maximum charging current adjustable to four levels: 45 A/55 A/63 A/70 A

Level of efficiency: ≥ 93% at maximum charging current