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1S LIPO LION BMS

gaetancantelobre·1S_LIPO_LION_BMS·kicad_files/1s_bms.kicad_pcb

1S LIPO LION BMS PCB layout, top view — open source board by gaetancantelobre

About the 1S LIPO LION BMS PCB

1S LIPO LION BMS is an open source PCB design by gaetancantelobre, published on GitHub. It is a 2-layer board measuring 24.7 × 15 mm, with 12 components from 11 distinct parts.

Other key parts include the BQ21040DBVT. By type, the board carries 3 capacitors, 3 resistors, 2 connectors, 2 diodes, 1 IC and 1 battery holder.

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

From the project

This repository contains the design files for a single-cell (1s) Battery Management System (BMS) for Lithium-Polymer (LiPo) and Lithium-Ion (Li-ion) batteries. The design is centered around the Texas Instruments BQ21040DBVT integrated circuit, a highly integrated battery charger and protection IC.

This repository contains all the design files for a single-cell (1s) Battery Management System (BMS) for Lithium-Polymer (LiPo) and Lithium-Ion (Li-ion) batteries. The core of this design is the Texas Instruments BQ21040DBVT, a highly integrated battery charger and protection IC.

400mA output, adjustable via the R2 resistor.

This BMS is perfect for low-power applications where you need to safely charge and protect a single lithium-based battery cell.

1S LIPO LION BMS, from the project README
From the project README

Main components on the 1S LIPO LION BMS

BQ21040DBVT

1S LIPO LION BMS bill of materials (BOM)

12 components, 11 distinct parts.

QtyPartRefs
1
BQ21040DBVT
U1
1
USB_B_Micro
J1
1
Conn_01x02_Socket
J2
1
Battery_Cell
BT1
1
LED
D1
1
SS34
D5
2
1uf
C1, C3
1
10uf
C2
1
330
R1
1
4k
R2
1
10k
R3

1S LIPO LION BMS design files

The KiCad project lives in the gaetancantelobre/1S_LIPO_LION_BMS repository on GitHub; these links point at the commit this page was built from.

1S LIPO LION BMS: common questions

How big is the 1S LIPO LION BMS PCB?

The 1S LIPO LION BMS measures 24.7 × 15 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 1S LIPO LION BMS?

12 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the 1S LIPO LION BMS design files?

From the gaetancantelobre/1S_LIPO_LION_BMS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 1S LIPO LION BMS design in my own project?

The repository has no license, so all rights stay with gaetancantelobre. Use it as a reference, and ask the author before reusing the design.

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