Search results

I've taken a little different approach to limiting when the Multi charges my battery. I use the AC In to serve loads when PV is not available and batteries drop to 20% SOC, but I don't want to charge my batteries too much from "AC In" so I simply lower my Absorption and Float voltages on the...

I just purchased the Mean Well NPB-1700-24 battery charger for my home backup system replacing a junk AIMS unit and I couldn't be happier. The Mean Well unit is solidly built, has a number of voltage charge curves that are selectable by DIP switches and if you need to customize it further, you...

I have an 8S 24V 280Ah DIY battery in parallel with 3 x 24V 200AH LIFEPOER4 batteries from Signature Solar (22 kWh total capacity) and I have had no issues operating them in parallel for my home backup solar project. Just understand that the SOCs of the batteries will vary over the full SOC...

I have a Victron IP22 charger but its not waterproof. The IP65 might be a better bet for a boat situation. Bluetooth capability and fully programmable to customize for your specific needs...

No, it simply monitors voltage.

Again, it wouldn't hurt to ask the manufacturer. The worst that can happen is that they don't answer.

Yes, I believe it is.

I really can't recommend anything to you since I wouldn't want you to mess up your Bluetti based on my recommendation. However if I owned the Bluetti and wanted to see if it would handle it, I would feel comfortable over paneling it with up to 8x100 watts of panels in a 2S4P configuration to...

Check this CHINS battery out on Amazon. It's a little more expensive ($549 w/ $30 coupon applied) than the basic CHINS 100AH battery but it has low temperature charging capability and a Bluetooth app that you can use to monitor the state of charge of the battery, all in one nice waterproof 25...

No, I have not hooked the Titan up to any of my solar charge controllers. I have a Jackery 500 which limits its current 3.5A, which I have verified from over paneling it (Solar panels in parallel-not series). I have a Victron 150/35 which limits its current to 35A, also verified by over...

This might work too: https://www.bluettipower.com/products/dc-charging-enhanncer-d050s

You should probably check with the manufacturer to see if the Solar charge controller in the Bluetti automatically limits the input current. Tell them what you'd like to do with the Titan battery to see if they would have any issues with plugging it into the solar charge controller port. The...

8 MONTH USAGE UPDATE - as noted in my previous post I purchased a Bluetooth battery voltage monitor (see link in previous post) that I use to monitor the Titan's battery voltage by connecting it to the Titan's external battery port with a 50A Anderson connector. Although this is not the...

Have fun and enjoy!

Check out the following discussion threads. I think you will find some ideas to use your Titan in your RV. It is possible the use a 2000 watt generator and a Titan to accomplish what you want. Also consider putting an Easy-Start on your air conditioner...

Check out some further discussion about adding an external LiFePo4 battery to the Titan in my camper. https://diysolarforum.com/threads/titan-battery-expansion-port-experience.23915/#post-284282

Check out these two threads: https://diysolarforum.com/threads/installing-the-titan-power-bank-in-my-travel-trailer.9084/ https://diysolarforum.com/threads/titan-battery-expansion-port-experience.23915/#post-284282 There may be some helpful ideas in these discussions. I have successfully...

If your 12V DC load requires more than 20 amps from the Titan, you need a 24/12V DC-DC converter to plug into the Titan's wall charger port on the right side of the Titan. This charger port is directly connected to the Titan's 24V battery bus and load flowing through this port is registered on...

Here's one more switching logic diagram showing the wiring of my switch terminals to the batteries. Caution: Use these diagrams at your own risk. If you do something like this, make sure that you test the switch logic wiring for your particular setup before connecting it to the batteries. Use...

FYI, here's a look inside of my external Lifepo4 battery box with the top removed, with negative terminal on the left, positive terminal on the right. I put 8 176ah cells together in series of 2-4 cell groups for ease of future remove if necessary. I placed a plastic insulator between cells...

I included a link to the P30 in one of my previous posts. Here are a few photos of my external battery build including the switch. I'll try to explain what's going on. The 3 position rotary switch has 16 terminals which are connected as per the following manufacturers diagram. I used...

I have the Titan and I have a similar use case. I use it to power my RV when I am boondocking. I have 8x100 watt panels on the roof connected in 4S2P configuration into one solar charge controller. I use the other SCC for any ground mounted panels that I might need. I connect my Titan RV...

The Titan's lithium batteries are NMC chemistry so you would want to be careful paralleling them with LiFePo4 batteries because the voltage/SOC curves are slightly different. That said, you should be able to use them in a 24V setting by connecting leads to the two Anderson connectors on the top...

See the following link to a thread that discusses the using an external battery with the Titan. https://diysolarforum.com/threads/titan-battery-expansion-port-experience.23915/

I run V4.04 on the Chargery and have not ha I run V4.04 on the Chargery and have not had any problems. I do have another LiFePo4 pack with an Overkill BMS on it where I had a similar issue with wide voltage variations between two adjacent cells. It turned out to be a case where I had fused...

I agree that it would be better if the Titan SCC was adjustable or only charged up to 28.4V. I would be more comfortable hooking up a LiFePo4 battery to the external port. But then the Titan would lose about 10% of its NMC battery capacity. The whole point of having the DC-DC converter in the...

Unfortunately the customer can't adjust the charging voltage parameters of the Titan's solar charge controllers (or the AC wall chargers for that matter). The screen menu has no bearing on the settings of the charge controllers. They are preset to charge up to around 29.2V, but if my unit is...

The answer that Point Zero gave you is consistent with my experience. However I would still be leery of directly paralleling the LiFePo4 with the NMC chemistry for the reasons I mentioned above. It is true that an 8S LiFePo4 battery can be charged to 29.2V but that assumes the cells are...

I installed a Titan in my camper under the bed with 2x2 kWh stackable batteries which are NMC chemistry, but I wanted more battery capacity in limited space without paying the steep price for more Titan batteries. I built a relatively inexpensive ($850) 24V 8S 176Ah external LiFePo4 battery...

I have the same issue with my Titan, which is installed in a compartment under the bed in my camper. I've been thinking about how to monitor the battery voltage with Bluetooth without having to void the warranty. I came across this $29 battery monitor on Amazon...

WOW, what a system! You have done a great job putting this together. One observation; the end terminals and bus bars in your last photo look like they are pretty close to the end bracing channels. Are you considering shielding/insulating those exposed terminals a little more? Once again...

Awesome! Are you planning to insulate the bottom of the cells from the aluminum rails when you install in your RV?

Looks like your left with the brute force method if you want to prioritize solar over grid charging. If you want to experiment, try setting the "ignore AC input" when the battery voltage reaches the equivalent of 53.92 V on a 48 V base (26.96 V on a 24 V base, as shown below) for more than 5...

I agree. I'm not sure why Victron didn't make that an option to ignore AC input. It seems like it would be a simple software update. I have found that I can accomplish prioritizing charging from my solar by setting lower absorption and float voltages on my Multiplus charger than what I have...

I use the Victron Multiplus "dedicated ignore AC input" option on my build too, however I don't charge the batteries all the way to full off of the grid. I charge from grid AC only if my battery SOC drops to 20% and I turn off the AC charge when my battery voltage reaches 26.96 V (on a 24 V...