BB12120

PRODUCT RANGE

£658.80 GBP

Tax included. Shipping calculated at checkout.

Model

SKU: BB12120

Quantity

Technical Specifications Description Downloads

Family	Saturn Series
SKU	BB12120
Nominal Input voltage (Side A)	12 V
Nominal output voltage (Side B)	12 V
Power rating (Peak wattage)	1650W (120A current limit)
Bidirectional	Yes
Configurable	Yes
Remote Control	BBR

Saturn Series – The Ultimate DC/DC Charging Solution

The Saturn Series represents the pinnacle of DC/DC charging technology, offering unmatched efficiency, bidirectional charging, customizability, and reliability. Designed to safely charge, maintain, and optimize battery performance, it excels in high-demand environments with continuous full-load operation, advanced current limiting, and Lithium compatibility.

Key Features & Benefits

✔ Industry-Leading Efficiency (95-98%)

Buck-boost design for optimal power conversion

Current-limiting technology for safer charging

Compatible with Euro 6+ Smart Alternators

✔ Ultimate Flexibility & Safety

6 pre-set battery profiles & user-defined custom profiles

Low-temperature trip protection for Lithium batteries

Ignition feed & vibration sense activation

✔ Advanced Bidirectional Charging

Reverse charging ensures starter battery maintenance

Jump Start Assist mode – emergency engine start capability

✔ EV-Compatible Power Management

Prevents 12V EV battery drain while supporting auxiliary loads

Limits current draw to protect the vehicle’s DC/DC converter

Optimizes charging voltages for 12V & 24V applications

Battery-to-Battery Charger Remote (BBR) (Optional)

Live voltage & current monitoring

Custom charge profile adjustments (Absorption, Float, Time)

Adjustable current limits (100%, 85%, 65%)

Lithium float voltage removal for optimized performance

Scalability & Redundancy

Parallel multiple BBs for increased charge capacity

Fine-tune power output for precise current control

Ensures redundancy in case of unit failure

The Saturn Series is the most efficient, intelligent, and adaptable DC/DC charging system, engineered to optimize battery performance, prevent alternator damage, and future-proof your power setup.

Collated Instructions [NEWEST]

Generic Instructions:

Individual manuals [May be outdated]

10A | 15A | 20A | 25A | 40A | 70A | 120A | 200A models available now.

We can ship to the USA

Remote control BBR - Optional remote

- Buck Boost design, offering high efficiency (95-98%)
- Simple installation and setup
- Current limiting charger
- Lithium safe

- BB12120 Bidirectional w/ reverse charging and jump start assistance mode | 12V 120A (1620W output power)

BB12120

Input voltage range               9V-16V
Continuous Rated output power       112A at 14.41V ~1610W
Continuous Rated input power 123A at 13.68V ~1680W
Quiescent current           5mA
Efficiency rating           95-98%

Self recovering protections:   under voltage protection
               input over voltage protection
               output over voltage protection
               over current protection
               charge over temperature

Operational Temperature       -20 Deg C -> 60 DegC

Approval            CE | UKCA
               E-Marking E24*10R06/01*3790*00
Cooling method           Thermostatically Controlled
               Variable low speed fan

Dimensions           270mm x 130mm x 73mm
Weight               1.8Kg

Instructions / Information pac k BB12120

E24 - BB12120 - E-Marking certificate

Paralleling multiple battery to battery chargers together?

There are no problems installing multiple BBs together in parallel to increase the power. For example, you can parallel a BB1240 with a BB12120 to get 160A of charge current. Likewise, BB1270 w/ BB1240 or BB12120 etc.. it does not matter.

Benefits:

1) Redundancy, having multiple DC-DC chargers can help with reduncancy. If one was to get damaged, the other BB(s) shall continue charging.

2) fine tuning the current. As each BB has 3 different power levels, adding multiple BBs together gives you 6, 9, 12 etc.. different power levels. For example, if you wanted 90A you could get a BB1270 and a BB1240 and set the power levels to 85% each via the BBR remote (to give you approximately 90A). Thus, giving you large levels of flexibily to hone in to a specific charge current.

Turning off the reverse charging feature, you can! Please watch the video