DALY Smart BMS LiFePo4 8S 24V 100A with Programmable Bluetooth Module and Common Port

Bought my first two 48v 16s Dalys in 2020 and never had a problem. Bought two (different brand) six months ago for additional battery packs and both have already failed. They have been replaced with Dalys and seem to be functioning great. The Bluetooth on the newer units is greatly improved, range is about 70 ft from battery shed in interior of house. As of now I will buy Daly only.

New daly smart 150a bms (Amazon) on a new 12v 4s Eve LF280K battery build from Jenny Wu @ Docan. The review is about the bms and it is working awesome. Cells were out of sync after delivery but not by much. The smart daly bms with a fan has built in cell balancing. Daly balanced all cells during first charge leaving only a differential of 0.001 volt on one cell. Should be able to correct that difference during the 2nd charge/discharge cycle. I’m impressed at this device as I was used to(3) 100 ah Renogy smart batteries that all the cells were never completely balanced during the year that I owned them. Renogy sucks and I know that after spending way too much with them. Well anyways back to the daly talk…after charging my homemade eve lf280k build with the daly it was balanced to a difference as i said earlier to 0.001 volts. Ill update my review if it starts acting up on me. But for now Im extremely happy to have used daly’s smart 150a with built in fan. I’m under the impression that the earlier daly bms models didn’t have built in active cell balancing and low temp protection like the one I just used in my build today. Anyways hope this review helps you. I added my parameter setting screenshot to help you get started

I'm not sure why my previous review was taken down but I'll try again. The BMS hardware seems good but the programming is horrible, both the app and the PC software. The unit offers almost no effect balancing because it is only active while charging. It does appear to offer over current and over/under voltage protection. It often shuts down without any alarm shown. Reset in app is the only thing that will reactivate it. No support, at least by anyone that knows anything. Obviously they do not have qualified programmers.

I've been using this to monitor and care for a 48V 220AH LiFePO4 battery I constructedfor the last eight months. It has worked perfectly so far, and has been very convenient with its bluetooth connectivity. (No need to open the battery compartment to monitor cell voltages) Almost all of the important parameters are configurable including but not limited to maximum charge & discharge rate, cell balance threshold, maximum cell and pack voltages, high and low temperature limits, etc. One word of caution though, if you have slightly mismatched cells, the 100ma balance current of this BMS will likely not be sufficient to keep your pack in the green. I found this out as I had 1/64 underperforming cell that needed to be exchanged. This isn't a fault of the BMS though, so no points off there. I'll likely use more of these when I expand my batter storage at a later date.

Name of the seller dally elect don’t buy from this seller they don’t have warranty or refund very bad customer service is the worst i ever seen completely crooks i tried to get a replacement for my bms and no answer at all for months i gave up this company is not worth the time avoid this seller

Connected to the app instantly when you push the little button on the Bluetooth module. Could get right in and change the settings for my system no problem. Better instructions and an up to date “smart-programmable-active-capacitive- balancer/equalizer” would make it perfect. However Daly makes one of the most affordable, high current charge/discharge BMS’s you can buy, so you’ll just have to augment it with a third gen NEEY balancer if you want the best system you can own.

I ordered this product because I am an DIY'er I build my own batteries. Only draw back on this item was that I did not notice that it did not work with Android or Windows, Only IOS have access to Bluetooth settings of this BMS. When you are ordering make sure you read the description carefully.