2 layers136.2 × 85.9 mm
BATDATUNIT01
mlab-modules/BATDATUNIT01
Multiple parallel Li-ion 18650 battery cell module with BMS and data storage with MCU control.
225 parts5GPL-3.0
2 layers
LION1CELL02
mlab-modules/LION1CELL02Single-cell Li-Ion Battery management system with I2C interface
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 93
- Nets
- 77
- Pads
- 272
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 4 Jan 2023
- Updated
- 22 May 2026
Overview
LION1CELL02 is an open-source printed circuit board by mlab-modules, from the mlab-modules/LION1CELL02 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board with 93 parts on 77 nets.
It is built around the BQ34Z100PW, SN74HC164PW and AO3400A, with the BC807-25, BAT54C and BSS83P among its other parts. Its parts include 31 resistors, 19 capacitors, 11 diodes, 5 ICs and 5 transistors. It belongs with the power boards of this library.
Main components
8
BQ34Z100PW
TSSOP-14-40℃~+85℃ 140uA 2.7V~4.5V I2C、HDQ Lithium Battery、LiFePO4 Battery Monitoring IC Not supported Support TSSOP-14 Battery Management ROHSTexas InstrumentsBattery Management ICsSN74HC164PW
TSSOP-14-40℃~+125℃ 1 2V~6V 30ns@6V,50pF 36MHz 4mA 74HC 8 Serial-to-Parallel TSSOP-14 Shift Registers ROHSTexas InstrumentsShift Registers
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsBC807-25
SOT-231 PNP 100MHz 100nA 160 300mW 45V 500mA 5V 700mV PNP SOT-23 Bipolar (BJT) ROHSGuangdong HottechBipolar (BJT)BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky DiodesBSS83P
SOT-23MOSFETsTECH PUBLIC
SKRTLAE010
SMD,4.5x3.4mm-40℃~+90℃ 1.63N 100,000 cycles 12V 3.3mm 3.4mm 4.5mm 50mA Round Button SMD(SMT) Tab SPST-NO Surface Mount, Right Angle SMD,4.5x3.4mm Tactile Switches ROHSALPSALPINETactile Switches
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
README
README.mdLION1CELL02 - Single-cell Li-Ion BMS power supply with I2C interface
Integrated battery management solution for 18650 Li-ion batteries. It can measure remaining energy in the battery, perform a charging cycle from a USB-C power source, and protect batteries against overvoltage or overdraining conditions.
Features
- Charging, balancing, termination (temperature protected)
- Gas-gauging (temperature compensated)
- Over-voltage protection
- Over-current protection
- Under-voltage is not protected - the module is constructed to power the device until battery death
Connection
The module could communicate on the I2C or HDQ bus.
| Mark | signal | Description |
|---|---|---|
| 1 | PG | |
| 2 | STAT2 | |
| 3 | GND | |
| 4 | CE | |
| 5 | STAT1 | |
| 6 | CMODE |
Parts
93| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitor_SMD:C_0805_2012Metric | C1, C2, C4, C11, C14, C18, C19 |
| 6 | 270R | Resistor_SMD:R_0805_2012Metric | R11, R13, R14, R15, R16, R23 |
| 5 | 1k | Resistor_SMD:R_0805_2012Metric | R12, R21, R22, R28, R29 |
| 5 | 68R | Resistor_SMD:R_0805_2012Metric | R17, R18, R19, R20, R24 |
| 5 | GREEN | Mlab_D:SMD_LED_RIGHT_KINGBRIGHT_1605 | D5, D6, D7, D8, D10 |
| 4 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3, FID4 |
| 4 | M3 | Mlab_Mechanical:MountingHole_3mm | H1, H2, H3, H4 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C7, C10, C17 |
| 3 | 5k1 | Resistor_SMD:R_0805_2012Metric | R2, R3, R5 |
| 3 | ORANGE | Mlab_D:SMD_LED_RIGHT_KINGBRIGHT_1605 | D3, D4, D9 |
| 2 | 100R | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 2 | 10k NTC | Resistor_SMD:R_0805_2012Metric | TH1, TH2 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C8, C13 |
| 2 | 1uH - DFE252012P-1R0M=P2 | Inductor_SMD:L_1008_2520Metric | L1, L2 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric | C6, C15 |
| 2 | 4k7 | Resistor_SMD:R_0805_2012Metric | R30, R31 |
| 2 | AO3400A | Package_TO_SOT_SMD:SOT-23-3 | Q4, Q5 |
| 2 | BC807-25 | Package_TO_SOT_SMD:SOT-23-3 | Q2, Q3 |
| 2 | Fuse | Fuse:Fuseholder_Littelfuse_Nano2_154x | F1, F2 |
| 2 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1, NT2 |
| 2 | RED | Mlab_D:SMD_LED_RIGHT_KINGBRIGHT_1605 | D1, D2 |
| 1 | 0R01 75PPM | Resistor_SMD:R_2512_6332Metric | R26 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 2k2 | Resistor_SMD:R_0805_2012Metric | R27 |
| 1 | 2k4 | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 330 | Resistor_SMD:R_0805_2012Metric | R25 |
| 1 | 33k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 3n3 | Capacitor_SMD:C_0805_2012Metric | C12 |
| 1 | 47n | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 47u | Capacitor_SMD:C_0805_2012Metric | C16 |
| 1 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 510R | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 511k | Resistor_SMD:R_0805_2012Metric | R8 |
| 1 | 91k | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | BAT54C | Mlab_IO:SOT-23 | D11 |
| 1 | BATT | Mlab_Batery:BAT_BK-18650-PC4 | BT1 |
| 1 | BQ25628E | Mlab_IO:Texas_S-WQFN-HR-18 | U2 |
| 1 | BQ29700DSER | Package_SON:WSON-6_1.5x1.5mm_P0.5mm | U5 |
| 1 | BQ34Z100 | Mlab_IO:TSSOP-14_4.4x5mm_Pitch0.65mm | U1 |
| 1 | BSS83P | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | HEADER_1x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J3 |
| 1 | HEADER_2x03 | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_RoundedPad1.0x1.5mm | JP1 |
| 1 | SKRTLAE010 | Mlab_SW:SKRT | SW1 |
| 1 | SN74HC164P | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U4 |
| 1 | TPS631000DRLR | Package_TO_SOT_SMD:SOT-583-8 | U3 |
| 1 | USBC_USB4105-GF-A | Mlab_CON:USBC GCT_USB4105-GF-A | J1 |
Questions
What parts does the LION1CELL02 use?
93 parts, built around the BQ34Z100PW, SN74HC164PW, AO3400A and BC807-25. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the LION1CELL02 KiCad files?
From the mlab-modules/LION1CELL02 repository on GitHub, at the commit this page was made from: the board is hw/sch_pcb/LION1CELL02.kicad_pcb and its schematic hw/sch_pcb/LION1CELL02.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LION1CELL02 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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