JBD SP17S005 20A

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Discharge Current

20A40A$28.14 50A$30.05 60A$33.75 80A$39.35 100A$39.35 120A$39.35

JBD SP17S005 — the most popular budget BMS for e-bike builds. Auto-identifies 10–17S configurations. Passive balancing (40–60mA). Built-in Bluetooth with per-cell monitoring via XiaoxiangElectric app (iOS/Android). UART communication. Compact design (102×65×12mm for ≤80A, ×16mm for 120A). Common-port design.

Specs verified May 29, 2026

Where to Find

Prices tracked across 1 seller

AliExpress - JBD BMS Official Store

$25.15 + free shipping

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Specifications

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Resources

JBD SP17S005 Product Page (jiabaida-bms.com)

Manufacturer PageOfficial JBD/Jiabaida product page for the SP17S005 — the most popular budget BMS for e-bike builds.

JBD SP17S005 Wiring Diagram

Guide / TutorialOfficial wiring diagrams for all cell configurations (10S through 17S). Shows balance lead, P-/B- connections, and charge port wiring.

JBD Communication Protocol (RS485/UART/Bluetooth)

Datasheet / PDFOfficial JBD communication protocol specification covering RS485, UART, and Bluetooth interfaces. Essential for custom integrations.

How to Program JBD BMS Settings — XiaoxiangElectric App Guide

YouTube VideoComprehensive guide to programming JBD BMS settings via the XiaoxiangElectric app. Covers model comparison and app configuration.

XiaoxiangElectric App (Android)

Firmware / SoftwareOfficial JBD/Xiaoxiang BMS monitoring and configuration app. Per-cell voltages, current, temperature, SOC, and protection threshold configuration.

JBDTools V4.3 — Windows PC Configuration Software

Firmware / SoftwarePC-based configuration software for JBD BMS. Connect via UART module for full parameter programming, data logging, and firmware updates.

ESPHome JBD BMS Integration (GitHub)

Firmware / SoftwareESPHome component for monitoring JBD BMS via Bluetooth or UART. Enables Home Assistant integration with real-time cell monitoring.

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