Connect with us

Questions lithium polymer battery

Discussion in 'Power Electronics' started by gamer87, Jan 10, 2020.

Thread Status:
Not open for further replies.
Scroll to continue with content
  1. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    recharge 3 meter bars is not 100% and is it safe?
     
  2. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    Nobody knows what 3 or 4 bars mean on the meter.

    If they are volts then 4 bars show a lithium cell at 4.2V is 70% to 100% fully charged.
    Then 3 bars shows that the battery cell is dead.
    Then 2 bars shows that the battery is 2 V and is destroyed.
     
  3. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    I don't know if I should recharge all the bars or not I just know that the manual says to charge every 3 months but it doesn't say to fully recharge
     
  4. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    They probably want you to keep the battery fully charged so that you need to replace it sooner. Then they make more money.
     
  5. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    I don't want to lose the battery, I want to conserve it as much as possible so that it looks good and has many recharge cycles and it is made of lithium polymer

    here is the manual in item 9 talks about the battery
    pen2.jpg
     
  6. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    They know everything about burning spots off skin but they do know nothing about a Li-PO battery.
    www.batteryuniversity knows everything about Li-PO batteries but they know nothing about burning spots off skin.
     
    Bluejets likes this.
  7. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    Is it correct that I recharge not fill all the meter bars and every 3 months?
     
  8. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    Maybe in 3 months the meter will still show 4 bars, then what will you do?
     
    Bluejets likes this.
  9. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    If so, can you recharge the device in a period longer than 3 months? What should I do if you say that the manufacturer's recommendations for the battery are short-lived and I buy another one?
     
  10. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    You should recharge if the voltage drops below 3V per cell which might happen years from now if the battery is not used.
    The manufacturer did not say how many discharge/charge cycles and how much capacity is lost before the battery needs replacement.
     
  11. Alec_t

    Alec_t

    2,788
    742
    Jul 7, 2015
    Read post #31 again. If still in doubt, contact the battery manufacturer.
     
  12. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    i not contact manufacturer battery polymer lithium

    I don't have to measure voltages just the battery charge indicator on the device but I won't be using it constantly

    see the photo of the battery meter in the arrows, I will rarely use this device but I want to keep the battery stored and not let the charge get bad for useful life, which recommendation? in the manual says to reload 3 months

    Ha4d940bf90644dada6aeb4574d410d31W.jpg
     
  13. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    Charge it to maximum like the Mole Freckle Pen manufacturer says. Then charge it every 3 months like the manufacturer says.
    Then the battery should last for at least 2 years when not used often. We do not know the quality of the battery and we do not know if there is something in the pen circuit that drains the battery.
     
  14. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    In the manual it does not say if it is to recharge to the maximum or not but if I recharge to the maximum it will go to 100% and store the battery in 100% and reduce its useful life, I thought they said to recharge every 3 months so as not to leave the battery battery reach low voltages
     
  15. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    I use Li-PO batteries in my RC model airplanes. The manufacturer says to store the batteries at 3.7V to 3.8V during the winter so I do that. When a Li-PO battery is by itself with no load then the voltage does not drop. New Li-PO batteries are sold charged to only 3.7V to 3.8V. In Spring I will throw out my 5 years old batteries and replace them for more power and longer discharging times.
     
  16. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    For my case and conditions mentioned, what should I follow?
     
  17. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    Leave the battery in the pen and charge every 3 months, or remove the battery and leave it at 3.7V to 3.8V then install it and fully charge it before using it.
     
  18. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    I will leave the battery in the pen but will recharging 100% every 3 months reduce the battery life? in 3 months what is the percentage rate of charge loss of the lithium polymer battery?


    the manual recommendation is correct for the longest life of the lithium polymer battery or is this recommendation for it to damage quickly and I buy another battery?
     
  19. Audioguru

    Audioguru

    2,791
    633
    Sep 24, 2016
    If something in the pen is discharging it all the time then when the voltage gets too low the battery will be destroyed.
    I think they just want you to always have it fully charged so that it is always ready to be used, AND so that you need to buy a new battery from them more often.
     
  20. gamer87

    gamer87

    204
    0
    Mar 11, 2017
    I want maximum battery life
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Thread Status:
Not open for further replies.
Electronics Point Logo
Continue to site
Quote of the day

-