The BMPRO MiniBoost is a compact 20A DC-DC charge booster designed specifically for caravan and RV applications.

If your caravan battery is not charging properly from your tow vehicle, voltage drop is usually the cause. Long cable runs, small wiring size, poor connections or general distance between the vehicle and caravan can result in low, ineffective charging voltage reaching your house battery.

The MiniBoost solves this problem by absorbing low incoming voltage and boosting it to an optimal charging voltage for your auxiliary battery.

Installed inline on the auxiliary charging line, just before the caravan battery bank, the MiniBoost ensures your RV house battery receives proper charging performance while travelling.

Key Features:

• 20A DC-DC charger designed specifically for RV use

• Boosts low vehicle voltage to optimal charging level

• Compact and easy to install

• Input over-current protection

• Input reverse voltage protection

• Output over-current protection

• Short circuit protection

• Reverse connection protection

• Durable BMPRO construction

How It Works:

When voltage from your tow vehicle drops due to cable length or resistance, the MiniBoost converts that lower voltage into a steady 14.4V charging output, allowing your caravan battery to charge correctly while driving.

Specifications:

• Brand: BMPRO / SETEC

• Model: MINIBOOST

• Other Identifier: 500-00733

• Barcode: 9358381000180

Charger Type: 20A DC-DC Charger
Input Voltage: 10–16V DC
Output Voltage: 14.4V constant voltage
Output Current: 8–18A (depending on input voltage)

Battery Type: 12V Lead Acid
Battery Chemistry: AGM, Gel, Calcium, Wet

Operating Temperature: 0°C to 50°C ambient

FAQ

Q: What does the MiniBoost actually fix?
It corrects voltage drop issues when charging your caravan battery from your tow vehicle.

Q: Is this a full battery charger?
No. It is a DC-DC booster designed to improve charging from your vehicle’s auxiliary line.

Q: What battery types does it support?
It supports 12V lead acid batteries including AGM, Gel, Calcium and Wet.

Q: Is this suitable for lithium batteries?
No. This model is designed for 12V lead acid battery chemistries only.

Q: How many amps is it rated at?
It is a 20A DC-DC charger, delivering 8–18A depending on input voltage conditions.

Q: Does this replace solar charging?
No. It only boosts charging from your tow vehicle while driving.