# 4S1P Battery Power Board
## Description
4S1P Li-ion/LiPo battery interface board with XT60 high-current output, JST-XH 5-pin balance connector, exposed weld/contact pads, and 4 oz 2-layer high-current copper pours for 60 A nominal / 100 A pulse operation.
## Project Details
- **Owner:** wladdy
- **Created:** 7/13/2026
- **Last Updated:** 7/13/2026
- **Visibility:** Public
## Key Components
### J1 — [XT60-M](https://www.flux.ai/jharwinflux/xt60-m~j7.md)
- Datasheet URL: https://www.snapeda.com/parts/XT60-M/AMASS/datasheet/
- Manufacturer Part Number: XT60-M
- Max Current: 100A
- Current Rating: 60A
- Manufacturer Name: AMASS
- Role Details: XT60-M main B+/B- output; 60A nominal, 100A up to 3 minutes; position follows PB.step
- License: https://creativecommons.org/licenses/by/4.0/
- Role: Power Conversion
**Pins:**
- Neg [pin N]
- Pos [pin P]
### J2 — [B5B-XH-A(LF)(SN)](https://www.flux.ai/adrian95/b5b-xh-alfsn~zvt.md)
- Connector Positions: 5
- Role Details: JST-XH 5-pin balance connector, pin order B-, B1, B2, B3, B+; position follows PB.step
- Manufacturer Part Number: B5B-XH-A(LF)(SN)
- Connector Pitch: 2.5mm
- License: https://creativecommons.org/licenses/by/4.0/
- Role: Power Conversion
- Manufacturer Name: JST Sales America Inc.
- Current Rating: 2A
- Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eXH.pdf
- Part Type: Connector
**Pins:**
- Pin_1 [pin 1]
- Pin_2 [pin 2]
- Pin_3 [pin 3]
- Pin_4 [pin 4]
- Pin_5 [pin 5]
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/wladdy/4s1p-battery-power-board~xz](https://www.flux.ai/wladdy/4s1p-battery-power-board~xz).*
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