HardLabs

Bq3060

iam4722202468·ThinkpadBattery·KiCad/bq3060/bq3060.kicad_pcb

Bq3060 PCB layout, top view — open source board by iam4722202468

About the Bq3060 PCB

Bq3060 is an open source PCB design by iam4722202468, published on GitHub under the MIT license. It is a 2-layer board measuring 74.3 × 52.8 mm, with 68 components from 23 distinct parts.

Other key parts include the BQ29412DCT and BQ3060PW. By type, the board carries 30 resistors, 22 capacitors, 6 transistors, 3 connectors, 3 diodes and 2 ICs.

It belongs with the power & battery designs in this gallery.

From the project

Open source Thinkpad T420 battery design

This is a fully open source laptop battery design. The design uses an attiny85, which can reply to the T420 motherboard's SMBUS requests.

- BATTERYCAPACITY | Your battery capacity in mAH - VHIGH | The highest output voltage of your battery, normally 12.6v - V_LOW | The cutoff for when the battery will stop working, normally around 10.8v

Parts Needed - Arduino Uno/Mega (for programming the attiny85, Mega needs different pin assignment) - 12v Lithium-Ion battery pack - 3S Lithium-Ion BMS (it might be possible to use the existing bms if specification is available but communication needs to be…

Main components on the Bq3060

BQ29412DCTBQ3060PW

Bq3060 bill of materials (BOM)

68 components, 23 distinct parts.

QtyPartRefs
1
BQ29412DCT
U1
1
BQ3060PW
U2
2
Si1023x
Q1, Q2
1
NDS351AN
Q3
3
SI4435DYTRPBF
Q4, Q5, Q6
1
Conn_01x04_Male
J1
2
Conn_01x03_Male
J2, J3
2
10k
RT1, RT2
3
MBR0560-TP
D1, D2, D3
16
0.1uF
C1, C2, C3, C4, C5, C6, C7, C8 +8
1
0.22uF
C9
3
1.0uF
C11, C17, C20
2
100pF
C21, C22
10
1k
R1, R2, R3, R4, R5, R6, R7, R8 +2
4
100 2W
R10, R11, R12, R13
1
0.005 75ppm
R14
4
100
R15, R16, R29, R31
2
220K
R17, R19
1
1M
R18
2
3M
R20, R25
Show 3 more
QtyPartRefs
3
5.1K
R21, R22, R24
1
301 1W
R23
2
200
R27, R28

Bq3060 design files

The KiCad project lives in the iam4722202468/ThinkpadBattery repository on GitHub; these links point at the commit this page was built from.

Bq3060: common questions

How big is the Bq3060 PCB?

The Bq3060 measures 74.3 × 52.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bq3060?

68 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bq3060 design files?

From the iam4722202468/ThinkpadBattery repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Bq3060 design in my own project?

Yes, under the terms of its MIT license, which iam4722202468 chose for the repository.

More boards in ThinkpadBattery

Similar boards