Why do you need this and a bms? the bms is supposed to balance as well?

Most BMS will only balance while the batteries are charging. The active balancer works all the time. It takes current from a battery with high voltage and sends it to a battery with lower voltage.

can the 20s also be used for a 14s and 16s battery and Lifepo4 and LI

I cannot say for sure-- but I wouldn't think so. The unit comes with the number of leads to match the cells and I don't believe it would function correctly without the same number of battery cells connected.

Will this balancer work without a BMS?

Yes it will. You can actively monitor the state of your battery via blue tooth app and it works quite efficiently. Good for older out of balance battery packs.

Why does daly balancer show diferent voltage on the app from my original bms? Some times in 30 mV diference

Probably the accuracy of the voltage reading. These are not "industrial grade" instruments. they are consumer level. A 30mV difference is not too big and nothing to be concerned over.

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Daly Smart Equalizer 16S 1A for Lifepo4 Li-ion LTO Battery Groups Capacitor Balancer PCB

Daly Smart Equalizer 16S 1A for Lifepo4 Li-ion LTO Battery Groups Capacitor Balancer PCB

Product ID: 740724466

Details

Brand
DALY
Colour
Smart Active
Item dimensions L x W x H
11.5 x 6.6 x
UPC
768655913716

⚡16S battery balancing precision

🔋1A current for efficient capacitor balancing

🛡️Multi-certification: ISO, FCC, RoHS, PSE, CE

Description

⚡ Balance Smarter, Power Longer — Stay Ahead in the Energy Game!

PRECISION 16 S BALANCING - Optimizes each cell in your LiFePO4, Li-ion, or LTO battery pack for peak performance.
UNIVERSAL COMPATIBILITY - Seamlessly integrates with LiFePO4, Li-ion, and LTO battery groups for versatile applications.
ROBUST 1 A CURRENT HANDLING - Ensures fast and reliable capacitor balancing to extend battery lifespan.
CERTIFIED QUALITY ASSURANCE - Backed by ISO, FCC, RoHS, PSE, and CE certifications for trusted safety and compliance.
COMPACT EFFICIENT PCB DESIGN - Saves space while delivering high-efficiency balancing for professional-grade battery management.

The Daly Smart Equalizer 16S 1A is a high-precision capacitor balancer PCB designed for LiFePO4, Li-ion, and LTO battery packs. Featuring 16-cell balancing capability with a 1A current rating, it ensures efficient and reliable battery management. Certified by ISO, FCC, RoHS, PSE, and CE, this compact and robust device guarantees safety, compliance, and optimal battery performance for professional applications.

Specifications

ASIN	B0B5LJLRRL
Best Sellers Rank	#10,052 in Musical Instruments ( See Top 100 in Musical Instruments ) #4 in Equalizers & Feedback Controllers
Brand	DALY
Color	Smart Active Balancer
Customer Reviews	4.2 4.2 out of 5 stars (38)
Input Voltage	3.7 volts
Item Dimensions	4.53 x 2.6 x 0.75 inches
Manufacturer	Dongguan Daly Electronics Co., Ltd
Mfr Part Number	AB-1
Model Number	768655913716
Number of Items	1
Plug Type	Type A or Type B
UPC	768655913716
Unit Count	1 Count

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