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XJ-2837-04 1S 3A support peak current 5A NMC 18650 battery for speakers and small fans
1S BMS

XJ-2837-04 1S 3A support peak current 5A NMC 18650 battery for speakers and small fans

1S, 3A ,continuous discharge current ‌3A‌, instantaneous peak current can reach ‌5.6A‌, supports ternary lithium batteries or lithium iron phosphate batteries, and is used in 3C digital products, such as small speakers, small fans, power banks, etc.

    XJ-2837-04 1S BMS (2)XJ-2837-04 1S BMS (3)XJ-2837-04 1S BMS (4)XJ-2837-04 1S BMS (5)XJ-2837-04 1S BMS (6)XJ-2837-04 1S BMS (7)XJ-2837-04 1S BMS (8)

    Type

    Specification

    (1) XJ-2837-04

    Supports 1S Batteries.

    Battery Type: NMC/LFP  

     

    Dimension:28*3.7*0.66mm

    NO

    Item

    Symbol

    Inspection methods and equipment

    Inspection Standards

    Unit

     

     

     

     

    Minimum

    Typical Value

    Maximum

     

    4.1

    Overcharge protection

    Overcharge detection voltage

    VDET1

    Lithium battery protection board tester

    4.23

    4.28

    4.33

    V

     

     

    Overcharge detection delay time

    tVDET1

    Lithium battery protection board tester

    80

    120

    160

    ms

     

     

    Overcharge release voltage

    VREL1

    Lithium battery protection board tester

    4.03

    4.08

    4.13

    V

    4.2

    Over discharge protection

    Over discharge detection voltage

    VDET2

    Lithium battery protection board tester

    2.3

    2.4

    2.5

    V

     

     

    Over discharge detection delay time

    tVDET2

    Lithium battery protection board tester

    40

    60

    80

    ms

     

     

    Over discharge release voltage

    VREL2

    Lithium battery protection board tester

    2.9

    3.0

    3.1

    V

    4.3

    Overcurrent protection

    Overcurrent detection voltage

    VDET3

    Lithium battery protection board tester

    0.12

    0.15

    0.18

    V

     

     

    Overcurrent protection current

    IDP

    Lithium battery protection board tester

    4

     

    8

    A

     

     

    Detection delay time

    tVDET3

    Lithium battery protection board tester

    5

    7

    10

    ms

    4.4

    Short circuit protection

    Detection delay time

    TSHORT

    Lithium battery protection board tester

    200

    400

    600

    μS

     

     

    Protection release conditions

     

    Multimeter

    Disconnect external short-circuit load or charge recovery

    4.5

    Internal resistance

    Main circuit on-state resistance

    RDS

    Lithium battery protection board tester

     

     

    80

    4.6

    Current consumption

    Current consumption during normal operation

    IDD

    Lithium battery protection board tester

     

     

    6.0

    μA

    4.7

    Quiescent Current

    Current consumption in sleep mode

    IPWN

    Lithium battery protection board tester

     

     

    0.1

    μA

    4.8

    Charging

    0V charging function

     

    Yes

     

     
    1S, 3A ,continuous discharge current ‌3A‌, instantaneous peak current can reach ‌5.6A‌, supports ternary lithium batteries or lithium iron phosphate batteries, and is used in 3C digital products, such as small speakers, small fans, power banks, etc.

    Features: 
    1. Integrated overcharge, over-discharge, over-current and short-circuit protection‌.
    2. The 1S 3A battery protection board is designed for single-cell lithium batteries and is suitable for small-scale, low-power scenarios. It ensures battery safety by precisely controlling charging and discharging.

    Application
    Compatible with single-cell lithium batteries (such as 18650 21700 models) ; handheld tools: Mini electric drills and LED flashlights.