2022 Model 12V To 12V DC TO DC Chargers 40A / 70A / 120A Models + Remote Control (Optional)
£92.00 – £899.00 (ex. VAT)
Description
12V to 12V DC to DC Chargers 40A / 70A / 120A models – E-Marking
70A and 120A models available now
Remote control BBR – Optional remote
– Buck Boost design, offering high efficiency (95-98%)
– Simple installation and setup
– Current limiting charger
– Lithium safe
– BB1240 Bidirectional | 12V 40A (550W output power)
– BB1270 | 12V 70A (930W output power)
– BB12120 | 12V 120A (1620W output power)
Smart Alternator/Euro 6 compatible
– Ignition feed or Vibration Sense modes
– 6 preset battery types
– 6 self recovering protections
– Low temperature trip for Lithium Ion batteries
BB1240 Reverse Charging Feature.
The BB1240 is able to charge in both directions. Provided there is over 13.2V on the leisure battery (13.5V if lithium) and the starter battery is below 13V the BB shall allow approximately half current (~20A) to flow back to the starter battery up to about 13.4V (float voltage). It simply allows the starter battery to remain topped up when there is surplus energy in the domestic battery. This feature will NOT drain your domestic battery – it simply takes surplus. Once your alternator / engine turns on or you provide the BB with an ignition signal the BB reverts to normal charging of the leisure battery. This mode can be disabled, but is on as default.
This is ideal for allowing the starter battery to remain topped up when you have solar / wind / charger – charging up your leisure battery.
Battery to Battery Charger Remote Control – BBR
PLEASE NOTE – BBR works best with brand new models in stock now (June 2022 onwards). If you have a BB1240/70/120 from before this date, you may have to send the BB back to use for latest firmware. As this is a new item, it has features that require BB firmware modifications.
(Optional)
BBR comes with 3m extension cable
What does the BBR offer?
– Live voltage and current readings from BB output
– Ability to set custom charge profiles | absorption, float and absorption time length
– Ability to adjust current limit to 85%, 65% or full power (100%)
– Allows the removal of float voltage feature in lithium profiles
– Desulphation / equilisation settings can be set in LEAD modes.
Why adjust the current limit?
The default current setting for the BB range is 100% – meaning that the performance default is full power. If you wish to reduce the performance of the BB, here you can set to 85% or 65% charge rate. Examples of why you may wish to reduce performance:
1) if you have solar panels and the weather is good, by reducing the power of the BB, you shall conserve fuel.
2) The alternator is better suited running at slightly lower current than what was expected.
3) It may be recommended by your battery supplier to charge the battery up at a slightly lower current. If one of your lithium batteries within your leisure battery bank fails, you may be exceeding the C rating of the remaining batteries.
4) future proofing. If you have installed a high powered BB, in the assumption that one day you shall put a larger alternator on and/or more batteries in your system. You can reduce the power for the immediate install and increase the performance of the unit at a later date.
BB1270
Input voltage range 9V-16V
Continuous Rated output power 64A at 14.51V ~930W
Continuous Rated input power 71.75A at 13.61V ~976W
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 24*10R06/01*3789*00
Cooling method Thermostatically Controlled
Variable low speed fan
Dimensions 200mm x 130mm x 56mm
Weight 1.0Kg
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
BB1240
Input voltage range 9V-16V
Continuous Rated output power 38A at 14.41V ~550W
Continuous Rated input current 42A at 13.68V ~575W
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 24*10R06/01*3789*00
Cooling method Thermostatically Controlled
Variable low speed fan
Dimensions 150mm x 130mm x 56mm
Weight 0.8Kg
Remote control BBR – Optional remote
– Buck Boost design, offering high efficiency (95-98%)
– Simple installation and setup
– Current limiting 4 stage battery charger
– Lithium safe
– 12V to 12V
– BB12200 – 2600W of output charging power
Smart Alternator/Euro 6 compatible
– Ignition feed or Vibration Sense modes
– 6 preset battery types
– 6 self recovering protections
– Low temperature trip for Lithium Ion batteries
BB12200 Reverse Charging Feature.
The BB12200 is able to charge in both directions. Provided there is over 13.2V on the leisure battery (13.5V if lithium) and the starter battery is below 13V the BB shall allow approximately 60A to flow back to the starter battery up to about 13.4V (float voltage). It simply allows the starter battery to remain topped up when there is surplus energy in the domestic battery. This feature will NOT drain your domestic battery – it simply takes surplus. Once your alternator / engine turns on or you provide the BB with an ignition signal the BB reverts to normal charging of the leisure battery. This mode can be disabled, but is on as default.
This is ideal for allowing the starter battery to remain topped up when you have solar / wind / charger – charging up your leisure battery.
Remote control BBR – Optional remote
– Buck Boost design, offering high efficiency (95-98%)
– Simple installation and setup
– Current limiting 4 stage battery charger
– Lithium safe
-~40A reverse charge current to 13.4V
– 12V to 24V
– BB1224120 – 1600W of output charging power
Smart Alternator/Euro 6 compatible
– Ignition feed or Vibration Sense modes
– 6 preset battery types
– 6 self recovering protections
– Low temperature trip for Lithium Ion batteries
BB1224120 Reverse Charging Feature
The BB1224120 is able to charge in both directions. Provided there is over 26.4V on the leisure battery (27.0V if lithium) and the starter battery is below 13V the BB shall allow approximately 40A to flow back to the starter battery up to about 13.4V (float voltage). It simply allows the starter battery to remain topped up when there is surplus energy in the domestic battery. This feature will NOT drain your domestic battery – it simply takes surplus. Once your alternator / engine turns on or you provide the BB with an ignition signal the BB reverts to normal charging of the leisure battery. This mode can be disabled, but is on as default.
This is ideal for allowing the starter battery to remain topped up when you have solar / wind / charger – charging up your leisure battery.
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 ould 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.
Additional information
| Weight | N/A |
|---|---|
| Power Variant | BB12200 200A Input, BB12120 120A Input, BB1270 70A Input, BB1240 40A Input, BB1224120 120A Input, BBR Remote Control (for BB's bought from May/June 2022 onwards) |