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๐Ÿ”‹ hiletgo 14.8v 4s 30a 18650 li-ion lithium battery bms pcb protection board with cell balance โ€“ integrated circuits logo

๐Ÿ”‹ HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Protection Board with Cell Balance โ€“ Integrated Circuits Review

6

ยท

Average

Revainrating 3.5 out of 5ย ย 
Ratingย 
3.7
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img 1 attached to ๐Ÿ”‹ HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Protection Board with Cell Balance โ€“ Integrated Circuits
img 2 attached to ๐Ÿ”‹ HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Protection Board with Cell Balance โ€“ Integrated Circuits
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img 4 attached to ๐Ÿ”‹ HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Protection Board with Cell Balance โ€“ Integrated Circuits

Description of ๐Ÿ”‹ HiLetgo 14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Protection Board with Cell Balance โ€“ Integrated Circuits

14.8V 4S 30A 18650 Li-ion Lithium Battery BMS PCB Integrated Circuits Protection Board Cell Balance. High-accuracy voltage detection circuit, fine workmanship and durable. Working current: 30A .Charging voltage: 16.8V-18V,the best is 17v.Size:56*48*4mm. Main function: Over charge protection, over discharge protection function, short circuit protection function, over current protection function, balance.

Reviews

Global ratings 6
  • 5
    2
  • 4
    2
  • 3
    1
  • 2
    0
  • 1
    1

Type of review

Revainrating 5 out of 5

Works as expected with power accessories

Nothing to report - everything works as expected. Just a general note: the balance leads should be disconnected from the board during the wiring process and reconnected after all the leads are connected to the battery.

Pros
  • High marks for support and durability from testers
Cons
  • Disappearing

Revainrating 3 out of 5

No documentation with circuit board

All I got was the circuit board and wire connectors. There is no documentation at all. :(I need to find documentation somewhere on the internet. Until I do that, I don't know if the board will work as advertised.

Pros
  • Best in niche
Cons
  • Not trendy

Revainrating 5 out of 5

Worked great with my 4s2p 18650 project and charged evenly!

I was a little hesitant just looking at the negative reviews and worried that my project would fail. However, since all these things are common, they look real and are inexpensive. I tried. Here as in the pictures. It works great and charges evenly - yes I checked every cell after a full charge! Don't fall for negative reviews.

Pros
  • price
Cons
  • flimsy

Revainrating 1 out of 5

Do not charge batteries evenly.

Using this board to charge the battery I used 18650 3000mA batteries, 6 parallel batteries, 4 times, this board did not charge four 6 parallel batteries in the same way. I used an 18V DC power supply. The final voltage across each of the four arrays of 6 batteries was different, typically in the 3.9 to 4.2 VDC range. The charger I built for the same batteries charged all four rows of 6 batteries to 4.20. These cards work well if you don't care about the maximum charge of all batteries.

Pros
  • Satisfied so far
Cons
  • Some cons

Revainrating 4 out of 5

Worked fine once I figured out the wiring

As others have said, this BMS is very lacking in documentation. I finally found schematics on other sites and hooked them up correctly. Attached to this review is a schematic from the same BMS listed elsewhere. Hope this helps someone. On the plus side, it didn't light up when I plugged it in the wrong way. Large pads for soldering B+/- P+/- and balance wires are very good. Don't be stupid like me and try to cut off the balance cable plug when the device is on. I unleashed magic smoke and nowโ€ฆ

Pros
  • Inspires confidence
Cons
  • Vulgarity

Revainrating 4 out of 5

Non-standard balance port.

Rating after further testing. 2.5V low voltage cutoff tested. I wish it was higher or adjustable. The trim works, but only above 4.20V. I noticed that it turns off when I touch parts of the board, so this may have something to do with my first results as the board was in contact with the cloth tape. Also, I realized I have a bad cell that will quickly discharge and recover to show a higher voltage. Original Review: It's very frustrating to spend a lot of time soldering everything and realizingโ€ฆ

Pros
  • Good product for the price
Cons
  • Fair