BB12120R Reverse Charge permanently on -- all other functions the same. Requires ignition feed to operate the BB12120 in the normal direction. Once ignition feed is off (0V) the BB12120 shall remain in reverse charger. This is idea for those that want to keep their starter battery at 13.4V constanstly. N.B. this shall use a small amount of power from leisure battery. 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-16VContinuous Rated output power 112A at 14.41V ~1610WContinuous Rated input power 123A at 13.68V ~1680WQuiescent current 5mAEfficiency 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 DegCApproval CE | UKCA E-Marking E24*10R06/01*3790*00Cooling method Thermostatically Controlled Variable low speed fanDimensions 270mm x 130mm x 73mmWeight 1.8Kg Instructions / Information pack 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
