Daly Battery Equalizer 4S 1A with Bluetooth App and Wire Leads and Compatible Active Balancer for Lithium Battery Rated 3.7V 3.2V 2.2V...

Name: Daly Battery Equalizer 4S 1A with Bluetooth App and Wire Leads and Compatible Active Balancer for Lithium Battery Rated 3.7V 3.2V 2.2V...
Brand: Dongguan Daly Electronics Co., Ltd
SKU: L1673047
Price: 36.35 USD
Availability: InStock

7 REVIEWS

SKU: L1673047

VENDOR: Dongguan Daly Electronics Co., Ltd

$59.30$36.35

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Daly Battery Equalizer 4S 1A with Bluetooth App and Wire Leads and Compatible Active Balancer for Lithium Battery Rated 3.7V 3.2V 2.2V
[Active Equalizer]Can be used alone or compatible with any brand of BMS.Suitable for Li-ion/LifePO4 battery packs
[Working Principle] Balanced by energy transfer, with high efficiency, less energy loss and low heat generation. Ensure battery consistency and extend the battery life. Balanced current: 0.1-1A, Voltage equalisation accuracy: 0.01V?
[24-hour equalization] Not limited by battery charging, discharging or static, sleep mode, etc. Intelligent detection of battery voltage, automatically turn on/off balancing.
[Smart active balancer]Support UART/RS485 communication, Bluetooth APP can view battery balancing information at any time. Indicator light on/flashing: balanced state; indicator light off: non-balanced state/fault.
[Satisfactory Service]: We Provide 24-hour online service,If you encounter any problems, Please feel free to contact me, we will give you a perfect solution.

2.36 x 1.38 x 0.7 inches

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Must have item for your Daly BMS

I purchased a Daly BMS from ZeeBooth years ago. My system is 16S/48v LifePO4 (300ah). I have had several batteries go bad over the years because they are improperly balanced. While Daly has "Balancing" on their BMS it's not active balancing. Even with daily charging and discharging the built-in function on the BMS is insufficient to maintain battery health. This has cost me over $1000 in battery failures. After installing the Smart equalizer the system is now balancing nicely even with the larger batteries. I initially had a few issues which was largely due to the lack of documentation. Fortunately, there are some end-user videos on YouTube. My balancer appeared to be DEAD. There are other 1-star reviews claiming the same. Probably those units were just fine. The system has one LED that only comes on when actively balancing. The default for active balancing startup is at 3.0v. This means ALL of your batteries must be 3v or higher to start balancing. I had one battery that was just under 3v. This setting can be changed in the Daly app. The second issue I had was I didn't see the Bluetooth dongle in the app. I swapped the Bluetooth from my regular Daly BMS and it worked. This allowed me to update the starting voltage. It turns out you have to add the Bluetooth dongle to the app to see it. A poor UI design in my opinion. To Fix this open the "SMART BMS" app then click on "local monitoring". Next change your battery selection to a different selection than what is currently selected, even if you are on the correct setting. This will display a link "Search". Click on search and add your device(s) to the app. Now change the battery type back to the correct one if needed. Also, you can confirm the Bluetooth is broadcasting by going to your phone connections and checking under Bluetooth / available devices. You won't be able to connect to it in this method but at least you can see its broadcasting. The Bluetooth dongle has a label with the Bluetooth broadcast ID printed on it. Hopefully, this helps out anyone else experiencing the same issues. So far I am very happy to have active balancing enabled. Batteries were within .05v difference within a day. You can select balancing all the way down to .02v in the app but .05v is the default setting.

Works great

Very convenient.

Seems to do what it says it should do

I bought this at the same time as a Daly BMS unit. It uses the same bluetooth software to control. It seems very solid, had no issues wiring it (it's just picky, painstaking work, you have to get the order correct), and it was easy to configure. Should help with top-balancing the pack. Please see my other review for the Daly BMS, I had some issues with the first BMS unit they sent but they stood behind thier gear and sent me a replacement. Good folks to work with.

Cables are to short

I've no idea why they make these cables so short. What a hassle to extend them all. Aside from that the product works well once you figured out how the App works.

2 of 2 units dead on arrival

Wasted time wiring two separate units in and both are completely dead, no output voltage on any of the Bluetooth UART pins. A quick Google/YouTube search shows this is a rampant problem. DALY should be ashamed, they're supposed to be better than this. Also the light on the active balancer only comes on when it is actively balancing, and there are no status lights on the Bluetooth whatsoever. This is just an abysmally bad product all around. Not to mention one amp max active balancing is quite weak compared to better units. Stay away. You've been warned.

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