Customer Reviews

5 out of 5
See all 43 reviews
Write a Review
  • All Reviews (43)
  • Image (6)
  • Video (0)
  • All Star
    • All Star(43)
    • 5 Star(43)
    • 4 Star(0)
    • 3 Star(0)
    • 2 Star(0)
    • 1 Star(0)
Sort by:
Top Review
  • Top Review
  • Most Helpful
  • Most Recent
Reviews only from your country (New Zealand)
Show Original

A part of the review has been auto-translated.

  • 13/11/2019

    A simple little protection board for low current (3A or less draw) systems using 2 series lithium cells. The type / size of cell is not important but the chemistry, must be lithium. The Negative ( -) end of the first cell is connected to the PCB terminal marked B- The connections between the (+) positive end of the first cell and the (-) Negative end of the second cell is connected to the PCB terminal marked BM (battery middle?) The (+) Positive end of the second cell is connected to the PCB terminal marked B+ The connection to the load / charge is made to the terminals marked P+ (7.5V nominal) and P- (GND Negative) Operation is simple. If either of the 2 series cells exceeds the upper voltage limit or drops below the lower voltage limit, the load / charge connection disconnects. The load / charge connection reconnects when the voltages are normal again. This may be the basis of a simple charge limiting circuit and over discharge protection circuit. The board is well made and works as it should. I hope this clears up some of the questions raised.

    Comments (1)
    Show Original
  • 19/03/2019

    Nabíjací a ochranný obvod pre 2ks spojené Li ion batérie 18650 2S 7,4 V. Balenie po 5 ks.

    Show Original
  • 24/02/2021

    bought to protect external batteries them ion for external module r9m. The pads to be soldered are delicate. At 385° they detach and move.

    Show Original
  • 16/01/2020

    Fast delivery. Works fine

    Show Original
  • 23/09/2019

    good quality, it's working, very small dimensions

    Show Original
  • 05/05/2022

    arrived very fast yet I do not try it but it looks good when I try it I will comment more

    Show Original
  • 11/10/2019

    nice and small

    Show Original
  • 19/11/2022

    Very small but good and super fast shipping

    Show Original
  • 06/10/2022

    Muito bem embalado. Tudo bem e a funcionar.

    Show Original
  • 07/06/2022

    Good purchase, definitely useful...

    Show Original

    Total 0 pages

    Go to page


    You might be interested in

    recommendation for you
    • US$1.37
    • US$1.04
    • US$14.94
    • US$59.99
    • US$11.99
    • US$2.63
    • US$6.29
    • US$23.99
    • US$59.79
    • US$56.59
    • US$68.99
    • US$3.44
    • US$14.94
    • US$13.51
    • US$5.74
    • US$6.31
    • US$1.39
    • US$2.94