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Ordered a 500a BMS from Daly. It arrived in 14 days as promised. I connected battery “sampling” wires as directed but Bluetooth doesn’t work properly or stay connected. I contact customer support and they tell me to mail it back so they can repair it. They accuse me of shorting it and...

I went a different way. But looks like some new comments/threads may be floating around soon, would love to see them!

so here’s what I’m wondering Why is my SCC shutting down after lunch? Why is my SCC getting unbearably hot at 5pm pushing 14v/40a? Does anyone know the thermal properties of these SCCs? When SCC shows 600w from panels, that’s a fair amount of wattage to dissipate as heat energy. Is there a...

An MT50 is a device to read/write parameters on the EPEver charge controllers. I use around 300ah daily on an offgrid mobile setup, sometimes I don’t get much sun due to shade, rain, travel, or a combination of factors thus I would like to keep my cells charged to the top when light is...

The MT50 doesn’t allow for temperature input (especially on BN series which doesn’t support temp at all), which is a big reason I am switching to the AN. Battery built of raw cells #8 3.2v LiFePO4 400ah cells wired 2P4S for 12v, 800ah with a 250a Daly Smart BMS. Panels are #3 250w wired 3S for...

Not useless. But “before the sun goes down” means the SCC is still charging, means the voltage won’t be precise, but FWIW I can tell you my voltage won’t go above 13.3v from 13.15v on a single 12v/40a MPPT. The only time my battery voltage goes above 13.4v is when both 40a MPPTs are charging...

Not to hijack this thread but I have a question about setting as well. I’ve set my battery type to LiFePO4 numerous time via the Bluetooth app but it still says “User” on the basic settings screen. The Advanced settings screen doesn’t seem to reflect LiFePO4 parameters, can someone tell me...

A single charge controller working between lunch>supper can’t really move my voltage: my bank is 12v 800ah and two 40a SCCs would have to work at near max capacity all evening to “fill” my cells. Voltage isn’t a great indicator of charge for LiFePO4 anyway, but I can tell you that the BN MPPT...

Here are my settings currently. Note that I can’t get the battery type setting to change to LiFePO4. Not sure what I’ve done but the other parameters are not problematic to change.

this is what it’s doing, and what claims my values are for battery/panels

They are at 13.2v nominal voltage bc my other EPEver BN series MPPT is still charging at >9a. If I open breaker on BN MPPT voltage drops to 13.1v yet the AN MPPT still does nothing after lunch. Float voltage is set to 13.4v and Boost reconnect is set to 13.2v.

As title says, I have a Tracer AN series connected to my batteries but after the MPPT reaches some voltage (boost I assume) the current to batteries drops to zero. If I reset the Tracer 4215AN (open panel AND battery breakers to MPPT) it will begin a normal charge cycle again, boosting to 14v...

@Damon Ye this is what I am talking about. Shorting the Daly works to start it, does it also void any warranty? My 2cents for @tsenator would be to avoid doing this. I shorted my 500a Daly maybe 10x in a few months to start it, and eventually this cooked my Bluetooth port. Daly sales helped me...

My Daly had this setting and Bluetooth connection was never any problem, in fact best Bluetooth I’ve used better than Xantrex or Schneider! About my 500a BMS: I used a wire to jump the Daly because it would not turn on otherwise, if you look back you can see many posts about this issue and...

Where is eBay listing? Share eBay listing maybe I can see price and will buy BMS. What’s shipping time?

I’m not in the same sorta coach you are ? But my 6 250w 65”x41” panels (without snail trails) for $348 was a good option for me. And Arizona doesn’t have sales tax on solar equipment so that $348 was out the door for me.

Not sure your schedule or location, but I would look at SanTan Solar in Phoenix or Atlanta. Used 250w panels for ~$60ea. I have a bunch and they’re an unbeatable value.

Char Any combination/multiple of 3.2V cells can be charged to an appropriate voltage if the charger supports that voltage as far as I know. But it is true that overcharging can blow batteries up ¯\_(ツ)_/¯

Ive been using a 3000w Xantrex Freedom XC Pro. Biggest draw is microwave and rated input is 1800w.

3P4S is my ideal setup bc I’ve been using my batteries 2P4S for the last 15mo and the capacity is matched high/low as I mentioned above. I’ve seen no degradation, I’ve done no research on internal resistance, and I just charged/discharged to determine capacity and pair them. The internal...

I’m a solar noob and apparently, a battery boob. Let’s go ahead and agree that I’m not going to be able to use all of my damaged cells. Say I’m gonna build a 3P4S battery consistent with feedback I’ve received here. What BMS solution do you recommend? I’ve seen 16s BMS’s that allow fewer...

You asked me this on another thread. My Chargery BMS did not accurately report ICV and my vendor checked his inventory and none of his new stock was accurate either. While I was waiting for him to contact me via eBay messenger again, he sent me an additional BMS and my return/dispute window...

You’ve just described the 12v set up I’ve been using for the past 15mo, except with only 8 (of 10) cells 2P4S. I have 10 damaged 3.2v 400ah LiFePO4 cells. 5 cells have capacity >350ah 5 cells have capacity <350ah I have paired the damaged cells 10/1, 9/2, 8/3, 7/4… to make a 4S2P battery. I...

This is the info I was wondering about. My inverter I can set to use whatever voltage I like within 9-18v. But on 12v lights and water pump and diesel heater etc you’re saying I should not attempt it. I don’t want to shorten the life of my extensively 12v wired system.

I have had a 12v battery for several years. Now I have some used/damaged cells and new cells and the best way to combine them is in this orientation, as far as I know. I had a bad experience with a Chargery and 500a Daly BMS, and now I own 10 overdischarged 3.2v, <400ah cells. I’ve capacity...

Yea I ha Yes I haven’t used the epever SCC yet, I am not sure I can even adjust the settings to align with my charging goal. That’s part of my question, if the EPEver can even do what I’m asking it to do. Xantrex told me their inverter/charger is designed to charge within any parameters it...

I have 10 damaged 3.2v 400ah LiFePO4 cells. 5 cells have capacity >350ah 5 cells have capacity <350ah I have paired the damaged cells 10/1, 9/2, 8/3…etc I also have 5 new cells en route from china which bring me to a total of 15 cells. I’m not sure there’s a “perfect” way to use my 15 cells...

I wouldn’t charge this battery to >18v. Bulk charging would be set to 17.5v then float at 18v. I understand I’ll be sacrificing some top end capacity but for the extra 1100ah I figured it was a good trade off. I have had a 12v battery for the last 2 years of full time off-grid living, I charge...

Will Prowse is the head moderator (and founder?) of this website. He’s also in the video I posted above. In this video, he says connecting to the AN/BN models using methods other than the MT-50 head unit is an awful experience. You can decide how reliable a source he is, but I think most...

Will seems to think this is not worth attempting afaik? He did say in comparison video of 40a solar chargers that the MT-50 is the only way he can recommend bc PC connecting is miserable and inconsistent

I had a bad experience with a Chargery and 500a Daly BMS, and now I own 10 overdischarged 3.2v, <400ah cells. I’ve capacity tested via charge/discharge cycles and matched them 1/10, 2/9, 3/8, 4/7, 5/6 with a cumulative capacity for these paired cells of ~700ah. I have 5 new (3.2v 400ah) cells...

I hope this is kosher, cause I made a post elsewhere bc I’ve got some questions… But I found this thread after posting and you guys are SO CLOSE to helping me that I’m gonna post my questions here and post a link to my post. Maybe y’all can help me out, TIA! I have 6x 250w SanTan panels on the...

I have 6x 250w SanTan panels on the roof of my bus. I have 2x EPEver BN 40a 150v MPPT. I have 3S2P setup on panels, with 3 on each side of my bus that I can tilt, thus 2 MPPTs for voltage/sunlight differential, which I believe is necessary. I have 15x 3.2v 400ah cells connected 3P5S for an 18v...

Damn, nobody responded. Wish I could help, buddy

Here’s a thread discussing issues but idk if they are similar to mine https://secondlifestorage.com/index.php?threads/chargery-bms-bad-reviews.9026/