Sorry guy's this is the same video I posted yesterday and I have now removed. I re-posted it as it briefly showed some Redarc staff contact information that was supposed to be blurred out; the only change is the now removed contact info. In saying that, I lost all my ranking on KZfaq for the video, so it would be awesome if you could just let it run again in the background and if you left a comment in the previous version, re-post your comments. Sorry about that.

Stefan, thank you so much for your thoughtful investigation. Today, I have contacted Redarc and they have advised that the update has only been available in the past few weeks so if I want the new profile, it will be prudent to buy from Redarc. Still not clear on whether my fridge will still be operating during that 20-minute cold down period. Thank you again Stefan.

Nice Stefan , yep gotta love red arc . Their quick response to any issues is awesome and they are always keen to listen. 👍🏿

Nice find stefan 👌 & great job Redarc for getting on it & doing something about it asap

Thankyou Stefan, this is the product development feedback that companies like Redarc need! The company I work for had multiple service vehicles with the older 1225 and 1240 models that we struggled with a lot, in remote areas, because that 2hr bulk mode was never sufficient to cover our 12volt loads and fully charge up our AGM batteries. So much so, that after losing batteries and struggling, we added extra fixed Solar panels, some with separate solar regulators and disconnected the BCDC from controlling the solar input and left it manage the smart alternator. Things have improved a lot with the newer BCDC50, however, I think some user selectable settings should be available via Bluetooth, people are more Tech savvy and paying big money for their batteries... they should have more ability to control the charging settings, or download/select the battery manufacturer's recommended charging profile to suit? What about the Built-in BMS in some Lithium batteries connecting to the BCDC and handshaking state of charge information, so that the Li-Po battery decides when and how it's charged?

Great video and update Stefan. 👍 watched again for u, sorry about the MDs details and resetting views.

Well done, appreciate the clarification

Thank you for your video, very instructive. I'am on the market for a DC charger to charge a 200Ah lithium battery. Redarc 1240D is on my list as well as Ctek and Victron. I am certainly not an expert and what I am looking for from a vendor/product is trust. Your tests and info are very valuable to me. Now I am stucked and very hesitant to go ahead with Redarc 🤔🤔

Hoping they can do something similar for the Redarc manager 30 as well. Great informative video.

Helpful and interesting, thanks!

Hi Stefen, Thanks for another awesome video. I just have a question out of topic. Do you carry a Jumpstart battery? if you do what do you carry? TIA

Great Vid, thanks for that as I was just about to buy and set up two 120 lithium's in the back of my 80 series and was wondering if they fully charged them off my 4wd via bcbc charger

Hi Stefan, You are a true legend, I could not work out why my charger would not stay on boost mode and this is why. Do you know how would the firmware update get deployed if instated?. Removing my bcdc from the car would be a lot of work.

Thank you for this video , I have a 1250 at the moment charging an itech 120x lithium battery and I can’t get it to stay in boost mode for very long either. I’m currently using a VictronConnect shunt to monitor the amps coming in and out and I’ve got a 200w solar panel permanently connected to the roof of my car. Do you think disconnecting the solar panel would reset the boost charge process ?

Stef, please do a "Pro's v Con's" video on the JK prior to releasing you sweet looking Extra Lux?

Hi Stefan You commented on this video and your everdrive vs redarc video about the derating of the enerdrive happening earlier at 50oC than the redarc at 55oC. You showed that even on a 25oC air temp on a bench, the redarc got over the 55oC and was derating. Do you know if the enerdrive with its internal fans keeps a lower internal temperature compared to the external temperature due to the fans blowing cool air inside, and thus doesn't derate as quickly or at as low air temp as the redarc?

Great info. I just drove down from Fraser to Ipswich charging the camper 125 agm and the car has a 125 agm as well. The camper has 2 fridges 90 waeco and the bushman. both running. 20 amp thunder dcdc charger in the DMAX. 5 hours travel time. When i got home the camper 125 agm was only on 60% . I am thinking after your great info i should unplug the car mounted agm to charge the camper one. Your thoughts as the car mounted agm is always fully charged.

Hi Stefan, Thanks for sharing your research - it's been really useful as I plan my upgrade to a lithium aux battery in the back of my LC76. I've pinned down the dcs 150ah for the new battery as it will fit perfectly with my setup. I also need a new charger and I like the victron 30ah except for the comparatively low output of the most powerful unit. I have considered 2 X victrons but that will take up more space and doesn't really seem cost effective (solar regulator will be another cost with victron). Noting the charge algorithm characteristics of the redarc units, how have you found the performance of your redarc charger (50ah??) paired up with your dcs 150ah battery

I fitted a 80mm fan to the 1250D and in 21 to 23°C ambient, it ran @ 50A continuously for 5hrs 15mins, putting 260AH charge back in to my dead flat 2x 120AH Kings LFP batteries. @ this point, the batt voltage was 14.1V according to Vitron, and the 1250D continued to charge for another 10mins, with the current falling away to about 10A before the battery finally cut off at 14.36v. After 2mins, the 1250D dropped its voltage to 13.7v. All of this is a comletely normal, and correct charge cycle. Before the fan was fitted, the 1250D would run @ 50A for about 10mins, b4 dropping to 43A. I used a 21cfm 12v 18dBa fan. This is the quietest 80mm fan on the market, but also the lowest airflow, and the 1250D still produced 50A @ 22°C for 5hrs. Any regular cheap 80mm fan will produce 30cfm and 28dBa - you should not hear 28dBa when the car is driving. 30cfm is 50% more than the fan I used, thus any 80mm fan should be ok. I used some 12.7mm Adhesive PCB Standoffs from Jaycar, plus a 80mm fan guard, amd sone zip ties. Mount the fan to the ribbed face, 1/3 from the led end - this end is hotter. I tested the fan with the 1250D both horizontal laying on a solid surface and vertical - makes no difference - both are still 50A after an hr 1250D fixed.

I have always been a redarc fan always use there equipment but I found victron state of the arc equipment as you can Adjust all the settings and it is Bluetooth so can see current operation status

Is this the exact same video you published yesterday? Or have you modified it and should I watch it again???

Hi Stefen, how often do u see the 50A dcdc charger put out the full 50A and for how long? Seems that it's always outputting around 40-45A?

Hi Stefan I just bought a 1250d. How do I know if mine has the update? How can I check this? Thanks again for your valuable information Cheers Mick

Hey, I just bought a BCDC1240D and no one mentioned this issue at all. I’m wondering whether it’s possible to figure out whether I received the old or new profile? Seems like a pretty dodgy issue if it’s not going to top up the batteries. Cheers!

With this charger your saying it will only boost once , so when you park up every night it won’t boost again and only absorb? Or after a case of 12 hours etc it will go back to normal again ?or won’t boost charge in a normal same day driving situation

What if you drive for 3 hours when it is on float or absorption mode and you have a fixed 100w solar panel and park your vehicle. Will it still stay on float or absortion on solar until the cycle is done then go into into boost? Or will the solar charge the battery regardless at a full 100w when the vehicle is off.

Hi Stefan. The charge should not know what load connected to battery supply. Fridge, oven, etc. The effect will be longer to charge the battery supply, if it's under 13.9volts and then 2hr or 4hrs. Is that your understanding. Russell

Hi hi, i I’ve been using redarc for years fist the first sbi12; then the newer red coloured sbi12,and now the redar bcdc1225d that’s in my personal Hilux but 2021 SR5 work Hilux redarc tow pro elite v3, bcdc1225d powering two 105 ah lithium what should I look out for in not 2021 Hilux with batterie and bcdc1225d charger

Query - I have a Manager30 and have just purchased a BCDC1250D as Redarc informed I can add this in parallel to increase charge rate from my alternator to a possible 50A+30A from the Manager 30. My concern now is that I might have purchased an old BCDC1250D and am concerned this is the old one. Is there a firmware upgrade etc that will increase this to the 4HR boost?

Dr lipshits from suits is that you lol jk good video

Can you just disconnect the input to reset to boost mode? Or input and output needs to be reset?

Great info Stephan. I have a 4 month old Bcdc1250d charging 510ah of lithium which switches straight from bulk to float charge early in the afternoon. The charge (from shunt) can be as low as 84% up to 93% depending on the discharge overnight. Today I disconnected the earth on the charger when it went to float (at 93%) and on reconnection it went back to bulk charge. Now at 99% still on bulk. I don't want the hassle of having to monitor the charger and reset it every afternoon. Hopefully Redarc will reply to my email with a solution

Hmmm

Please lower the volume of the intro. Way to loud compared to speaking volume.

I watch these videos but have never owned a Redarc charger so don't claim to know any of the details. What I understand is that (a) under certain conditions it won't cover the loads being taken from the battery even if you are driving, and (b) is this the same unit which Andrew White found could discharge the auxiliary battery completely? It sounds to me like an over-priced, very flawed product. An absolute liability if traveling to remote regions in fact.