User Tag List

Pagina 1 di 3 123 UltimaUltima
Risultati da 1 a 10 di 22
Like Tree3Likes

Discussione: Test comparativo batterie 18650

  1. #1
    Admin Cattivo Administrator
    Data Registrazione
    Jun 2012
    Località
    in un luogo sconosciuto
    Messaggi
    12,845
    Mentioned
    2534 Post(s)
    Tagged
    0 Thread(s)

    Test comparativo batterie 18650

    In this test I have measured many different 18650 batteries and collected the data in bar graphs and curves. The above picture shows most of the cells I have tested.



    Capacity: Measured capacity at 0.2 ampere discharge rate (This is the average from the two tested cells). This is not measured the same way as the manufacture specified capacity, i.e. it is not supposed to be exactly the same value.
    Top: SB: Small button top, LB: Large button top, Flat: Flat top ([Solo gli utenti registrati possono vedere i link. ]).
    Bottom: A protected battery has a PCB at the bottom, on some batteries this has been strengthen with a metal plate.
    Protected: Does the battery have a protection circuit? IMR batteries do not.
    Max. Dis.: Maximum allowed discharge rate. This is only listed for batteries where it is specified, for all other batteries assume 2C.
    Source: Where I got the battery.
    Date: The month I got the battery.



    This chart show the average capacity of the tested cells.



    This chart show the average energy of the tested cells.



    In this chart I have taken the difference between 0.2 and 2 ampere energy bar and calculated the change in percent of total energy ((Energy@0.2A - Energy@2A) /Energy@0.2A). This high lights the difference on handling loads.



    Physical dimensions

    18650 batteries are not all the same size, they are supposed to be 18 mm in diameter and 65 mm long, but due to the added protection circuit they are up to 5 mm longer. These charts show the size of the largest of my test batteries (The difference is usual not more than 0.1 mm to 0.2 mm for a cell type).








    Combined discharge curves

    These curves can be very hard to read, due to the many cells in one chart. When in doubt about which cell a specific curve is, use the charts under each cell to confirm the cell type.

    0.2 ampere discharge





    0.5 ampere discharge







    1 ampere discharge






    2 ampere discharge





    5 ampere discharge

    Not all batteries can sustain 5 ampere discharge and few batteries are rated for it. Because some curves are missing the color of the curves are different from above.






    Curves and pictures for each cell

    RediLast 2200 (Black)






    Specifications:
    2200mAh Capacity
    Protected against: overcharge, overdischarge, short circuit
    Cell Made in Korea
    4.20v±0.05 charge voltage
    2.75v cut off voltage
    3.6v Nominal voltage
    Charging type: CC/CV
    Max charge current: 1C (2.2A)
    Recommended charge current .5C
    Max discharge current: 4.4A




    RediLast 2600 (Black)







    Specifications:
    2600mAh Capacity
    Protected against: overcharge, overdischarge, short circuit
    Cell Made in Japan
    4.20v±0.05 charge voltage
    2.75v cut off voltage
    3.7v Nominal voltage
    Charging type: CC/CV
    Max charge current: 1C (2.6A)
    Recommended charge current .5C
    Max discharge current: 5.2A





    RediLast 2900 (Black)






    Specifications:
    2900mAh Capacity
    Protected against: overcharge, overdischarge, short circuit
    Cell Made in Japan
    4.20v±0.05 charge voltage
    2.50v cut off voltage
    3.6v Nominal voltage
    Charging type: CC/CV
    Max charge current: 1C (2.9A)
    Recommended charge current .3C
    Max discharge current: 5.8A





    AW IMR1600 (Red)







    This cell may have a low capacity, but it can supply very high currents.
    Specifications:
    Nominal Voltage : 3.7V
    Capacity : 1600mAH
    Lowest Discharge Voltage : 2.50V
    Standard Charge : CC/CV ( max. charging rate 4.5A )
    Cycle Life : > 500 cycles
    Max. continuous discharge rate : 10C
    Operating Discharge Temperature : -10 - 60 Degree Celsius





    AW 2200 (Black)




    ...............,,,,,,............[Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ]



    ...............,,,,,,............ [Solo gli utenti registrati possono vedere i link. ]
    .................................................. .....................

  2. #2
    Admin Cattivo Administrator
    Data Registrazione
    Jun 2012
    Località
    in un luogo sconosciuto
    Messaggi
    12,845
    Mentioned
    2534 Post(s)
    Tagged
    0 Thread(s)





    AW 2600 (Black)







    Specifications:
    Three triangulated raised dots ensure solid cell to cell connection when used in series.
    PCB protection against overcharge/ over discharge / short circuit.
    Safety vent with thermal cut off protection.
    Nominal Voltage : 3.7V
    Capacity : 2600mAH ( rated at 0.2C discharge 4.2V - 2.8V @ 25°C )
    Operating Temp. : Charge 0 to 45°C / Discharge -20 to 60 °C
    Max. Charge Rate : 2.6A ( ambient temp. 25 °C )
    Max. Discharge Rate : 5.2A ( ambient temp. 25 °C )
    Dimensions :18.52 X 68.16mm ( +/- 0.3mm )






    AW 2900 (Black)








    Specifications:
    Three triangulated raised dots ensure solid cell to cell connection when used in series.
    Uses Panasonic NCR-18650 LiNiCoO2 NNP cells.
    PCB protection against overcharge/ over discharge / short circuit.
    Safety vent with thermal cut off protection.
    Heat Resistance Layer (HRL) technology that forms an insulating metal oxide layer between the positive and negative electrodes. The layer prevents the battery from overheating even if a short circuit occurs.
    Nominal Voltage : 3.6V
    Capacity : 2900mAH ( rated at 0.2C discharge 4.2V - 2.5V @ 25°C )
    Operating Temp. : Charge 0 to 45°C / Discharge -20 to 60 °C
    Recommended Charge Rate : 825mA ( ambient temp. 25 °C )
    Max. Discharge Rate : 5.8A ( ambient temp. 25 °C )
    Dimensions :18.52 X 68.16mm ( +/- 0.3mm )







    ASUCELL 3000 (Yellow/black)










    TrustFire TF2400 (Black/red)













    FakeSony LR3000 (Black)








    This cell combines all the worst parameters for a cheap cell:
    1) Fake manufacture name
    2) Large capacity variations
    3) High internal resistance
    It might be old cell or rejected cells that has got a new wrapper.
    ...............,,,,,,............[Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ]



    ...............,,,,,,............ [Solo gli utenti registrati possono vedere i link. ]
    .................................................. .....................

  3. #3
    Admin Cattivo Administrator
    Data Registrazione
    Jun 2012
    Località
    in un luogo sconosciuto
    Messaggi
    12,845
    Mentioned
    2534 Post(s)
    Tagged
    0 Thread(s)



    Soshine 2800 (Black)










    UltraFire BRC3600 (Black/white)











    Cytac 2400 (Blue/white)










    Cytac 2900 (Red)










    Tenergy 2600 (Cyan)










    Specifications:
    Capacity: Nominal 2600 mAh, Minimum 2450 mAh
    Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V. UNIQUE INTERNAL PCB!
    Dimensions: Diameter 18+/-0.2 mm, Height 67+/- 0.2mm
    Weight (Typical) Approx. 46 g yes
    Nominal Voltage: Average 3.7V
    Cut-off Voltage: 2.5V
    Internal Impedance: less or equal to 180 milliohm (with PTC)
    Cycle Performance: 90% of initial capacity at 400 cycles
    Cycle life: > 500 cycles
    Charge: Current = 0.5C mA Voltage = 4.2 V End Current = 0.01 mA
    Discharge: Current = 0.5C mA End Voltage = 3.0V
    Max. Charging current: 1.5C ma
    Max. Discharging current 1.5C ma (for continuous discharge)






    Solarforce 2400 (White/blue)









    Specifications:
    Output voltage: 3.7V
    Capacity: 2400mAh
    Internal resistance: <120mohm
    Cut-off voltage protection: 2.5V
    Charging voltage protection: 4.3V
    Charging temp: 0 ~ 45 deg. Celsius
    Discharging temp: -20 ~ 60 deg. Celsius -
    Storage temp (one year): -20 ~ 60 deg. Celsius





    SpiderFire LC3000 (Gray)






    ...............,,,,,,............[Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ]



    ...............,,,,,,............ [Solo gli utenti registrati possono vedere i link. ]
    .................................................. .....................

  4. #4
    Admin Cattivo Administrator
    Data Registrazione
    Jun 2012
    Località
    in un luogo sconosciuto
    Messaggi
    12,845
    Mentioned
    2534 Post(s)
    Tagged
    0 Thread(s)



    Panasonic NCR2900 (Gray)












    Samsung ICR3000 (Purple)








    In the first two charts the cell is only charged with a normal LiIon charger, in the last two charts the cell is charged to full capacity using the [Solo gli utenti registrati possono vedere i link. ]








    TrustFire TR2400 (Gray)














    Notes

    For all battery types I have tested two different cells, they are called A and B in the graphs. All cells have been charged on a [Solo gli utenti registrati possono vedere i link. ] with half the marked capacity as charge current and the charge is stopped when the current is 1/10 of the charge current. I.e. if the battery is marked 3000mAh it is charged with 1500mA and the charge is stopped when the current is down to 150mA.
    This charge method will not reach the maximum capacity of the batteries, there might be space for a few mAh more. Batteries that are marked with too high capacity will be penalized with this charging method.

    When I only use one curve for a battery, it is the curve from battery A.

    All the discharging is done on a CBA and I frequently verify that the reading from the CBA matches readings taking with a voltmeter directly over the cell.

    Both capacity and energy is done in one discharge, capacity is a summation of the current, energy is a summation of current*voltage.

    Cytac batteries were supplied by Cytac for a review.


    qui l'articolo originale

    [Solo gli utenti registrati possono vedere i link. ][/QUOTE]
    Bindolo and Remus65 like this.
    ...............,,,,,,............[Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ] [Solo gli utenti registrati possono vedere i link. ]



    ...............,,,,,,............ [Solo gli utenti registrati possono vedere i link. ]
    .................................................. .....................

  5. #5
    Mikha'El Sostenitore
    Administrator

    Data Registrazione
    Jun 2012
    Località
    Predore (BG) - Pescara (PE)
    Messaggi
    9,605
    Mentioned
    2792 Post(s)
    Tagged
    0 Thread(s)
    Grazie trueOgre ma non potevi farlo un po' più lungo stò topic?


    [Solo gli utenti registrati possono vedere i link. ] ... [Solo gli utenti registrati possono vedere i link. ]... [Solo gli utenti registrati possono vedere i link. ]... [Solo gli utenti registrati possono vedere i link. ]

  6. #6
    Senior Member
    Data Registrazione
    Jun 2012
    Località
    Naples
    Messaggi
    1,617
    Mentioned
    296 Post(s)
    Tagged
    1 Thread(s)
    ma è fantastico! Mi prenderò 2 ore di permesso per leggermi stò 3d ma credo ne valga la pena!

  7. #7
    愛 Ninja Vaper
    Data Registrazione
    Jun 2012
    Località
    Torino
    Messaggi
    1,629
    Mentioned
    100 Post(s)
    Tagged
    0 Thread(s)
    Quindi? a cosa servono i progetti degli scivoli dell'acquafan di riccione?? Chi mi spiega? O_o

    *se lo leggi è perché l'ho scritto, con Tapatalk*
    Jah bless you!
    Non mi assumo nessuna responsabilità per quanto scritto qui sopra

    [Solo gli utenti registrati possono vedere i link. ]

  8. #8
    Don't worry, futtitinni! Administrator
    Data Registrazione
    Jun 2012
    Località
    Roma
    Messaggi
    7,786
    Mentioned
    2619 Post(s)
    Tagged
    2 Thread(s)
    Grazie giacomo.

  9. #9
    Senior Member
    Data Registrazione
    Jun 2012
    Messaggi
    4,229
    Mentioned
    450 Post(s)
    Tagged
    1 Thread(s)
    grazie per averlo postato ma ....

  10. #10
    Mikha'El Sostenitore
    Administrator

    Data Registrazione
    Jun 2012
    Località
    Predore (BG) - Pescara (PE)
    Messaggi
    9,605
    Mentioned
    2792 Post(s)
    Tagged
    0 Thread(s)
    Citazione Originariamente Scritto da elektrodata Visualizza Messaggio
    ma è fantastico! Mi prenderò 2 ore di permesso per leggermi stò 3d ma credo ne valga la pena!
    ma no caro, fai come me di che tutto è bello e tutto è magnifico, tanto stì topic non li legge mai nesssuno


    [Solo gli utenti registrati possono vedere i link. ] ... [Solo gli utenti registrati possono vedere i link. ]... [Solo gli utenti registrati possono vedere i link. ]... [Solo gli utenti registrati possono vedere i link. ]

 

 
Pagina 1 di 3 123 UltimaUltima

Permessi di Scrittura

  • Tu non puoi inviare nuove discussioni
  • Tu non puoi inviare risposte
  • Tu non puoi inviare allegati
  • Tu non puoi modificare i tuoi messaggi
  •