i have 1 of these units in my 4x4 and it is a great little unit i have the jump start button as well and when I'm driving and the unit is running its put from 14 to 14.4 volts into the 2nd battery i wouldn't have any other unit and mine dose everything that is out lined in this video .. That over ride button is a life save
Don't mean to be picky but from my understanding of your documentation the min. recommended cable size (4 or 6 B&S) is determined by the length of run 3m not the voltage 12 v or 24 v. correct me if I am wrong but that's how I understand the instruction .
Hi Neil, Thank you for watching, and we apologise for any confusion caused. The cable size is determined by power - this means it is determined by the amount of current flowing through a circuit of a certain length. Our Tech Support Team are more than happy to help walk you through this or answer any questions you may have on 08 8322 4848.
Hi, a few months ago i installed this unit into my old hilux to run my fridge off my 120ah auxiliary battery. It worked great for a few weeks but gradually my car was getting harder and harder to start. Its at the point now that sometimes i cannot start my car unless i turn off my fridge. I am unsure of what the issue is because the isolator seems to charge the batteries fine. Any help would be appreciated.
Hi. I have one of these in my dual battery system as well but I'm not sure if there's something wrong with mine as when my vehicle is off any accessories on the 2nd battery won't work and my voltage drops dramatically if the red LED light isn't on.
If you’re running a dc-dc charger with solar input between your lead acid crank battery and lithium auxiliary battery. Will using the override jump start function cause any damage to the charger or auxiliary battery?
And i have the BCDC1225D in the 4x4 with the solar preferred and i all so have BCDC1240D in the camper these 2 are great products my by Australia company tested in Australia for the Australian environment and a compact unit easy to install and do the job
Thank you for your comments and support of REDARC products, Andrew. We hope you continue to enjoy using them and tackling all the great things Australian roads have to offer!
Near the start of the video you show how to wire up a winch using a relay and the SBI blue wire...if I want to wire up the Option #3 (the jump start assist), can I do that by tapping off of the blue wire relay connection? Also Option #3 does not show the inclusion of a LED indicator lamp, can the LED lamp be added to the Option #3 wiring diagram?
Thanks for watching! If you wanted to integrate the start assist feature you can, you will just need to wire the SBI12 as per the middle diagram on page 4 of the user manual. When wired this way you will want to T off between the momentary button and the resistor. This cable will connect to pin 87 on the winch relay.
Thanks for watching! If you don't have the button installed you can bridge the override cable on the unit to a 12v source, this will activate the isoloator linking the batteries.
Thanks for watching! That will depend on your application, towing vehicle and batteries. We would highly recommend calling our Technical Support Team on 1300 733 272 for over the phone assistance and recommendations.
Thanks for watching! If you're looking at upgrading from an AGM battery to a lithium we'd recommend you also upgrade the SBI to a BCDC charger of some sort to properly look after the lithium. For more information on REDARCs range of BCDC chargers check out www.redarcelectronics.com/au/battery-chargers/dc-dc
I am about to install my recently purchased SBI12-D The Installation instructions appear to be the same as for the SBI12. I have watched your You Tube clip above and wish to implement the "Start Feature with Override Button" - I wish also to have the remote LED display indicating the unit is "working". My issue is the fact that the 'D' unit works in both directing - can I display this fact with one or maybe two LEDs? If so, could you please provide me the circuit?
Hi Ron, thank you for your message. The LED indicator for the SBI12/SBI12D simply illuminates when the isolator is active - the Dual Sensing feature of the SBI12D measures both main terminal voltages and will activate when either reaches 13.2V, and illuminates the LED at the same time. There is no ability to display the differentiation between which source activated the isolator, simply if it is active or not. Option 2 on page 3 of the user manual provides the wiring diagram that includes the Push Button for Start Assist as well as the External LED. If you require further assistance our Tech Team can assist in greater detail over the phone on 1300 REDARC.
My auxiliary battery set up in the rear of my wagon plan on running the earth wire back to the main battery or should I just earth it rear seats bolt as I’ve removed the seats?
Hi Luk, Either option is acceptable, provided the seat mount is indeed a common ground in the vehicle. If you are running the cable back to the battery however, ensure that you connect this to a common negative point and not directly to the battery negative terminal. Some vehicles monitor the battery through a sensor or shunt on the negative terminal, and bypassing this would result in start battery charging issues. Any further questions please don't hesitate to contact our helpful Tech Support Team in our head office who can run through this in greater detail over the phone.
I am installing your SBI12 in my dual battery set up. As I’m putting the auxiliary battery in the tray, what size cable do i run from the SBI to the auxiliary battery? Length of cable is approximately 4.5m. Also the main load is an Engle fridge/freezer and some LED lighting.
Thank you for your message. This information can be found on page 1 of our instruction manual at www.redarc.com.au/Content/Images/uploaded/Manuals/SBI%20Instruction%20Manual.pdf
Thanks for watching! If you're looking for charging capabilities with your RedVision and a smart alternator we recommend the BCDC battery charger or Manager30 battery management system. For more information we recommend giving our Tech Support Team a call on 1300REDARC (1300 733 272).
Hi Glen, When the SBI12’s red LED is illuminated this indicates the SBI12 is ON (closed contacts). The SBI12 will Turn ON when the voltage of your starting battery rises above 13.2 volts and remain ON until the voltage of your starting battery drops below 12.7 volts. The voltage of your starting battery may remain above 12.7 volts for a period of time after the vehicle is switched OFF and therefore the red LED will remain ON.
Hi there Luke, thanks for your comment. Depending on the vehicle, most will be fine to install a second battery to using an SBI. It will only throughput what the alternator can provide, so won’t overload the system too much. Most Auxiliary batteries of the lead-acid based variety can only take a certain amount of charge current anyway, so this will work well.
Hi nice video mate just a quick question with the push start button dose it have to be a high amp button or can I use a 5a is ok to use I can't find eny information eny where if you can help me by answering it it will be good thanks 👍🏾
Hi Scott, thanks for your comment. It will mainly depend on how much spare capacity the alternator has to give and the condition of the battery as to how long it will take to completely fill. If you’re looking to charge the battery from what we would consider ‘flat’ at 12V, for an alternator able to provide a spare 20A to the battery it might take approximately 2 or so hours of constant driving and a stable high voltage. There are quite a few variables, so can be tricky to properly work out too! If you want to have a chat to us about it, I’d recommend to ring our Tech Support team on 1300REDARC for further assistance.
Do i need an SBI if im hooking up a fixed solar panel to my auxillary battery? Would my starter battery run out of charge if i don't get one? Also I've got a bcdc 1240d
The SBI12 is used to prevent the auxiliary battery, or any loads on the auxiliary side of the isolator from draining the vehicle battery. If you do not use the SBI12, there is the potential that you can end up with a flat cranking battery and not being able to start your vehicle. Any further questions please contact our head office.
Hi Jack, The two smaller studs and nuts located below the module are the connection to the isolators coil. The smart module controls the isolator by applying power to the coil. You will not need to connect any wiring to these smaller studs/nuts when installing a smart battery isolator.
Hi 1972butchy, the BLUE override can be used to link the main and auxiliary terminals of the SBI at any time. If you are wanting to use the SBI to allow winching from both batteries, it would be worth upgrading from the standard SBI12 to the SBI212 as it has a higher continuous current rating. Any other questions please feel free to contact our Tech Support Team in our head office on 08 8322 4848.
Hi there, thanks for your question. It will depend on the vehicle you are installing the unit into and what type of Alternator that it has. If it is a vehicle with a Smart Alternator, then yes a BCDC is a good option here. But if the vehicle has a standard, Fixed Voltage type alternator, then using an SBI will be fine here.
I have a Redarc system fitted to my nissan navara, both batteries are under the bonnet. Question, can I run a lead from the second battery under the bonnet to an auxiliary deep cycle battery in the tray to keep it topped up?
Hi Malcolm, thank you for your message. It would be best to contact our Tech Support Team on (08) 8322 4848 or via email at power@redarc.com.au and they'll be able to walk you through their recommendations.
Hi Mate, I'm wanting to run a second battery in the engine bay for a winch, but also another battery in my canopy to power a fridge and also some 12V outlets. What do you suggest I use? Engine bay will be AGM, canopy battery will potentially be Lithium. I have a 2021 SR5 hilux. Or is the canopy battery overkill for just a fridge, LED canopy lights and a few 12V outlets? I do plan on having solar input as well. I'm just unsure as to what is needed. The Hilux is only used for weekend 4X4 trips. Thanks heaps
The Lithium battery in the will be good - you will get the most useable power out of this setup for your fridge and relevant devices. We would recommend to use an SBI12 for the under-bonnet AGM battery and a BCDC1225D for the Lithium in the rear. That way, you are taking care of both, but not overloading the alternator of the HiLux either.
The suitability of this product will depend on a variety of factors, namely the type of alternator your vehicle uses and what current your solar generator box is rated to. For some vehicles a DC-DC Charger such as a REDARC BCDC In-Vehicle Battery Charger may be required to properly charge an auxiliary battery, with the output current of the charger selected to suit your application.
The standard SBI12 will only "turn on" when the starter battery terminal detects voltage above 13.2v. The SBI12D (dual sensing) will monitor voltages on both starter battery and aux battery terminals. If either detects voltage above 13.2 the SBI will "turn on" and link the two together. For further assistance please be sure to contact our Tech Support Team on 08 8322 4848.
My SBI has recently stopped working. I've driven for several hours putting 14.5 volts into the main battery without the isolator 'turning on' (indicated by the red light of course) to allow the charge to reach the Aux batt. Could a bad earth be causing this? No fault flashes has been noticed and the alternator is a year old.
Hi Beej, thank you for your comment. It would be best to talk through the issue with our technical support team. If you could please contact our head office on (08) 8322 4848 the guys will be on hand to walk you through a few tests.
Hi Gurpreet, thank you for your message. We recommend contacting our Tech Support Team on (08) 8322 4848 and they can provide you details for your most appropriate installer.
@Redarcelectronics I have a Redarc BCDC1225D and the SBI12KIT (12v not 24v) for a dual AGM battery set up, in the engine compartment. I'm attempting to equip both the 'Jump Start' feature AND the 'Ultimate Dual Battery for Winching' feature, which the SBI12 enables. Questions: 1) For jump start feature of the sbi12, what is the minimum size momentary switch (amp rating) and minimum fuse size (amp rating) needed for that switch? 2) Also, can the same switch be wired to the SBI12 to accommodate both the jump start feature and the ultimate winching feature (i.e. in this scenario I'd replace the momentary switch with a latch or rocker style switch to accommodate both jump start (when truck starter battery dead) or to connect both batteries (while truck on) during winching)? 3) Or, are 2 seperate switches needed and if so, what size switch (amp rating) and fuse size (amp rating) is needed on switch connected to 'Ultimate Dual Battery for Winching' set up wiring? 4) Lastly, what minimum amp rating does relay need to be, for 'Ultimate Dual Battery for Winching' side wiring? Much appreciated.
Hi Jes, The switching is only purely a signal to the unit to activate, so something around 1A-2A at the most is more than enough. You can use the same switch for both; you could use a rocker switch instead but just need to remember to turn it off when not needing the jumpstart or when not winching. For a bigger vehicle and heavy winch load, an SBI212 is a good choice (200A model). If it is a small winch and 4 cyl engine, then a standard SBI12 is fine here (100A model). If you have any further questions please don't hesitate to contact our Tech Support Team in our head office.
Hi @@JesusWSalazar, being a bigger engine and winch in the Tacoma, we recommend installing the 200A version just to be safe. It will give you a bit more overhead on the current draw then.
If the second auxiliary battery that is connected using the SBI is a AGM Deep Cycle unit, can it be used as an emergency starting/cranking battery ? What is the minimum & maximum Amps (size) required for the Aux. battery to be used as a cranking battery ..? (Landcruiser 200) // Ta
Hello, thank you for the reply. When using an SBI12 we recommend that the auxiliary battery is the same chemistry as the factory starting battery (normally Lead-Acid). The reason for this is the auxiliary battery is being charged only by the alternator. The alternator is only designed to charge a Lead-Acid based battery. If you do want to use the auxiliary battery to jump start, the battery MUST have a CCA rating (Cold Cranking Amps). We would recommend the auxiliary battery have a CCA rating the same (or higher) as the factory starting battery. This will be written on the factory battery. For any further information, please contact REDARC Help Desk on 08 8322 4848.
Hi Liam, thank you for your message. It would be best to contact our Tech Support Team who can look to understand what you're trying to achieve and make a recommendation from there. You can contact them on (08) 8322 4848 or via email at power@redarc.com.au
