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Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (17.4mm*1.9mm)

Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (17.4mm*1.9mm)

1.40 1.27

5 (13 Reviews)

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  • 5 Star:7710 (77%)
  • 4 Star:233 (23%)
  • 3 Star:00 (0%)
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    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Cheap protection for Li-Ion single or series multi-cell applications

    posted by Firedog91902 on 04/07/2013 Certified Owner

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:
    Discharge cut off protection below 2.75v or 10A.
    Cons:
    Reset not automatic even when all voltages removed. I've found the best method is momentary short of the neg (battery) to neg (...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 5
    • Ease Of Use: 3
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Good PCM, but need upgrade

    posted by Zigger on 01/28/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    Good PCB, good quality factory soldering. Also good solder pads, easy to use. Terminal voltage rating not very good, but acceptable. Short circuit protection also works well.
    Cons:
    Low work current in this version - about 3,5 - 4A max. I need about 7-8A, so last time i brought this PCM 2x in quantity for re...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Buy a bunch, and start soldering

    posted by ironsmiter on 01/15/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Perfect form factor for 18650 laptop cells. Good price Nicely sized connector strips.
    Cons:
    The rated 10A is WAY overkill for single cell usage even if it does trip before you get there. No gasket or washer, to keep it ...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    very usefull

    posted by rombox on 01/03/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    the most important thing is that you don't have to build it yourself.after using it intensively i can tell that it certainly saves your liion from bursting into pieces and killing everybody around.it protects from allmost every error in charging and using t...
    Cons:
    values for the voltage cut are pretty much not equal and exact. short circuit protection is very aggresive and disconects faste...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Use it before it's too late

    posted by ZdenekJi on 12/23/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    This protection circuit fits on the negative (-) side of standard 18650 lithium cells found in laptop batteries. It actually has 3 wires in the shape of thin stripes. The positive wire is the long one. It only taps the positive terminal of the battery. The ...
    Cons:
    It is incompatible with batteries that contain more cells in series. When first installed, the circuit is open by the protectio...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 3
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Cheapest Product EVER.

    posted by perdification on 10/14/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:
    Really cheap protection circuit, SAVED MY LIFE A FEW TIMES and prevented the battery from blowing up when I plugged it into a cheap china made faulty charger. This is a must get for all 18650 batteries.
    Cons:
    Makes the battery longer than the standard 18650 size, may not fit for some torches/devices/battery holders designed for 18650's.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Seems to work

    posted by Meow88 on 11/10/2011 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 day to 1 week

    Pros:
    Very cheap Well built Long enough tabs Fast delivery Seems to work fine. I bought these to replace a stock protection circuit i had on a blue trustfire 18650. I had stripped out the trustfire's circuit and transferred it to my diy parallel 8 cell pack. It ...
    Cons:
    No cons to speak of. If it cant handle short circuits as some DXers have tested, at least the FETS burn out first, instead of y...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Good protection

    posted by lukasandrysik on 01/18/2011 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Cheap (considering free shipping with only one piece of it) Small, compact form (fits 18650 cell)
    Cons:
    Cutoff voltages could be more...considerate. I'm afraid the battery taken to these voltages will die fast - but IT IS ONLY PROT...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Works Fine

    posted by Sergiosulaco on 01/10/2011 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:
    Simple and effective PCB. I use it with an old-cordless Screwdriver (KC9036 from Black & Decker) which was working with a NiCd destroyed battery. Two 18650 cells and this circuit and returned to live!! No more discharged screwdriver when you need it!
    Cons:
    It would be nice DX gives an adaptor ring or something to tight de PCB to the battery body. Its installation would be easier an...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Access to cheap batteries

    posted by Farving on 12/20/2010 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month

    Pros:
    - Seems decent priced - Small form factored - Perfect fit
    Cons:
    - Needs soldering to Li-ion batteries which is considering dangerous to the batteries, however, if the soldering time is keept ...
    View Detail » 
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