BB 20 C Pro | Caravan charging booster

BB 20 C PRO – The charging booster that adapts precisely to your towing vehicle

The BB 20 C PRO was specifically developed for caravans and motorhomes and allows for precise adjustment of the charging current to the fuse rating of the towing vehicle. The charging current is flexibly selectable between 5, 9, 13, 15, or 20 amps. This ensures that the on-board battery is efficiently charged while driving, without overloading fuses, cables, or vehicle electronics. Even with long cable runs, the charging power remains stable and controlled.

The BB 20 C PRO operates completely silently thanks to passive cooling and is compatible with all common battery technologies. It supports AGM, GEL, wet cell, lithium, and modern sodium batteries. Settings and monitoring are performed directly on the device, via Bluetooth using the connECTIVE app, or via CI and CAN bus. ECE-R10 certification allows for safe operation while driving, even in modern vehicles with regulated alternators.

The BB 20 C PRO is designed for caravanners who travel frequently and want to reliably charge their leisure battery while driving. Especially with Euro 5 and Euro 6 vehicles, the booster prevents typical charging problems caused by intelligent alternators. It utilizes the permissible current limit of the towing vehicle precisely, without exceeding it. Precise charging curves ensure battery-adapted and gentle charging. The battery temperature sensor protects the battery in both high and low temperatures. The fanless design increases lifespan and ensures completely silent operation, even at night in the caravan.

Areas of application

• Charging the caravan's on-board battery via the towing vehicle's alternator

• Safe operation with long cable lengths between vehicle and caravan

• Suitable for lithium, AGM, GEL, wet and sodium batteries

• Optimal charging for modern Euro 5 and Euro 6 vehicles

Performance

• Flexible charging current adjustment: 5 / 9 / 13 / 15 / 20 A

• Reliable charging of the on-board battery while driving

• Compatible with 12V systems

• Recommended battery capacities up to 400 Ah

• Optimized charging characteristics for all battery technologies including sodium

Security

• ECE R10 certified for use while driving

• Protection against reverse polarity, overvoltage, undervoltage and overheating

• Starter battery undervoltage protection

• Passive cooling without fans or moving parts

• Battery temperature sensor included

Control and connectivity

• Monitoring and control via the connECTIVE app

• Integration via CI and CAN bus possible

• Charging current setting directly on the device or digitally

The BB 20 C PRO is a specialized charging booster for caravans that adapts technically to any towing vehicle and ensures a stable, safe charge of the on-board battery during the journey.

• Article number: TN7238
• Battery nominal voltage (DC) in [V]: 12 V
• Operating temperature: -20 °C to 60 °C
• Self-consumption in [mA]: 25 mA
• Input voltage range "Start II" [V]: 10 - 18 V
• Alternator input (12 V START II): 4 - 18 VDC, max. 20 A
• For battery type: Wet (Liquid), AGM (VRLA), Gel (VRLA), Li-ion (LiFePO4), Sodium-ion (SIB)
• GTIN: 4260725127536
• Manufacturer: ECTIVE
• Category: BB PRO Charging Booster
• Charging efficiency: 94%
• Adjustable charging current: 5A / 9A / 13A / 15A / 20A
• Dimensions (L x W x H): 185 x 155 x 58 mm
• Max. charging current: 20 A
• Product group: Charging booster PRO
• Product series: ECTIVE BB C PRO
• Interface: Bluetooth, CAN-BUS, CI-BUS
• Protection functions: Overvoltage, overheating, reverse polarity (PV)
• Starter battery nominal capacity min.: 60 Ah
• Overvoltage shutdown START II: 18.5 V
• Certification: ECE R10