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So i took the punt and ordered 4x60AH supposedly 5C discharge liitokala cells from liitokala Official Store: https://www.aliexpress.com/snapshot/0.html?spm=a2g0s.9042647.0.0.7e8e4c4do4qmPH&orderId=8139911177373910&productId=1005002759997512 Then i read the feedback :-(. They arrived all...

A hybrid supercapacitor / Li battery sounds perfect for your application. The supercaps do the starting. The Li battery just keeps it topped up (supercaps have a reasonable discharge rates). A guy on YouTube has been running a supercapacitor only start 'battery'. An off the shelf battery...

As far as i understand, some Daly's are UART, some are RS485 - depending on what you ordered.

I got mine from Daly on aliexpress when i ordered the BMS. Solar4rvs in Melbourne do sell them with a BMS, they might sell them separately.

I use this - for the Sinowealth software, and infer the relationship to the app. https://diysolarforum.com/threads/daly-smart-bms.9070/page-4#post-144059 Seems there are some quirks - ie i cant set SOC via the app, ive read others can.

I would get a Smart BMS and be able to program those settings as you see fit. OR tell eg. Daly to setup those settings at the factory.

Has this trick (sleep time) done the trick for you? I also found some Daly spec sheets that describe needing 0.6V above the pack voltage to wake up the BMS via charging (second last page): https://www.solar4rvs.com.au/assets/brochures/D-BMS-4S-100.pdf

Yes, Im aware of the considerations of the marine charging folks. My application ive mitigated for those risks by limiting charging current, knowing my alternator properties (ie 13.9V max), using a FET based isolator and still using a hybrid AGM as my main battery. Heck, my typical charge...

I noticed your mobile carrier - if you are close to Melbourne i could help out with my UART cable.

Has anyone measured / have data on LiFePO4 battery "internal resistance"*. By this i mean cells + wiring + BMS. In building my first battery, i was very worried about overcurrent, having taken onboard anecdotes like "a Li battery will suck up all the charge you can throw at it". Also looking...

I tested the Android APP and can confirm i can change Capacity with a 4S Daly SmartBMS. I cant seem to change the SOC value however.

I dont have an answer to your question, but... Could you post up the full PDF of the 150A Daly spec sheet?

As far as i know, the sinowealth software works with the 3s and 4s BMS, but the Daly software does not.

When charging cells in parallel, 0.1V makes a lot of difference. Looking at the leads your are using - they look quite thin. As has been said, what is the current max output of your PS, and what have you set it to be (ie in CC mode). I built my 4s pack, charged them in series to 14V (at...

Last night i ordered a 100A https://www.aliexpress.com/item/4000425316662.html?spm=a2g0s.9042311.0.0.7d5f4c4d6si86M to replace my 60A Daly. In the meantime im thinking of making some videos showing various aspects of the Daly smartBMS, and showing low temp cutoff etc (to save my past self...

From memory right now - if you select the "Ah" screen, then hold in the "set" button you can set the max AH capacity with the arrow buttons. Then fully charge it. Then choose "%" screen and i think "set" to set it to 100% - i forgot how to exactly do this.

I have a 60A Daly Smart BMS. Temp cutoffs also work.

Several resellers / custom battery builders in Australia are using the Daly 250A smartBMS, and low (and high) temperature disconnect has been tested by them and works fine. I have the 60A version and low and high temp cutoff was the first thing i checked. eg...

From memory, Ive seen Will say this and do this in all the DIY battery videos (ie there must be 10 or more on his channel?). ie. Build the battery and then plug in the balance leads to the BMS *LAST*. Also pulling the balance leads off will (should) shut down the BMS. Apart from doing...

So i discovered a few more quirks of the Daly SmartBMS. When i unplug the BT module the BMS shuts down. See the next bit - I cant seem to start the BMS via the shorting B- P- method when the SOC is high (i was able to do this before i fully charged the battery)? This creates a problem i...

Its curious, as when i slide the button, the password box shows up (as it does when trying to change a setting). Quality of life (and the weather!).

Good work, im glad some of the confusion around Daly SmartBMS is getting cleared up and others are having similar positive experinces. Yes, knowing the "123456" password helps and is neccessary to know. Have you managed to get Charge and Discharge CMOS switching on/off to work? Ive been...

I got mine yesterday (4s 60A), and yes, I can monitor and configure it via USB-UART (Using Sinowealth software) and the Android App. It took me about 2-3 hs of frustration and looking for the software getting the BT and USB working. It would have gone smoother if i had pre-installed it. On...

Ive only read elsewhere it needs >10A. When i first started my BMS, i kept turning up the voltage (getting a little worried) and it sprung to life around 10A. I just tried it again - 7A was when it sprung to life. Thinking about it - i suspect it senses a deltaV as how can it measure current...

Ive uploaded the Daly Sinowealth tool (used for 3s-4s BMS). The Daly supplied USB-UART cable also needs a "CH340" driver which is also included. Some instructions on how to use it are here: https://www.dalyelec.cn/newsshow.php?cid=24&id=75&lang=1 And member fguoit has created a translated...

Oh thanks, they are great resources.... just hidden away in their "news" section. (I was looking at dalyelec.com)

Have you charged it with > 10A? Mine wont startup until i do that.

Finally got my Daly 60A 4S Smart BMS with bluetooth and UART-USB. I didnt figure out how to start the BMS by shorting the B- and P- wires (ie i didnt know what i was doing. Can someone pls explain that?) I did start it up by charging with 10A, and got the Android app Bluetooth connected...

I think you can - did you find the answer? They are used that way in hotswapable servers, with the current share pins connected together. I know there is a god howto to isolate the ground and float them so they can be put in series. For 100A, find a DPS-1200 PB, or the 800GB (80A) seems...

I dont have much to report as its still in the messy breadboard phase. A link to another one i modified with Voltage control only is here: https://www.rcgroups.com/forums/showpost.php?p=45534255&postcount=1893 I have since changed that to give 10-14.5V. That 100 page thread has all kinds of...

They are server PSU's, so high quality and rated for high power. The DPS-1200PB is 100A; its more expensive as the Crypto miners have adopted it as one of their go-to power supplies.

Might not be what you are after, but a cheap charger solution is to use a HP server powersupply, such as the DPS-600PB. Its nominal 12.5V, but applying a -2.5-2.5V takes the output to 10 - 15 V (but with builtin over voltage cutoff at 13.8V - so perfect for a ~ 3.4V/cell charge). It also has...

If you purchase from the "SmartBMS" store - noted as Daly's second store or the "DALYBMS store", they offer free shipping and mostly the same products.

I really appreciate you posting this and not adding to the drama! Your confirmation of BT + USB saved me from buyers remorse (as to why i didnt by a JBD BMS).

I could be way off on this, but to the best ive managed to understand "Superior BMS" means programmable by them (Daly at ordering), "Smart BMS" allows some user programming viaUART/RS485. ie. https://www.aliexpress.com/item/4001313748132.html?spm=2114.12010612.8148356.6.108b1be6jhWbiU