Product Overview
The Li-ion Battery Protection PCBA (PCM) is an essential battery safety module for lithium-ion and lithium-polymer battery packs, featuring cell balancing, over-current protection, temperature sensing, and short-circuit protection, which is built to help power tool, e-bike, and energy storage products meet UN38.3 and IEC 62133 transport and safety requirements.
Brightlx produces battery protection PCBA boards, BMS safety modules, over-charge protection boards, and battery management PCBA modules covering 1S to 16S configurations, with common-port and separate-port options and support for Li-ion, LiFePO4, and LTO chemistries. These boards are ideal for Li-ion battery PCM boards, multi-cell BMS modules, battery pack safety boards, and 18650 battery protection modules — with balancing current from 30mA to 150mA and support for smart BMS versions with UART and Bluetooth communication.
From custom PCB design for a new battery protection circuit to PCB assembly for production runs and full turnkey manufacturing, we provide customized PCBA solutions, OEM PCBA services, SMT assembly, and 100% functional testing with over-current and short-circuit verification on every outgoing board. Brightlx is your one-stop supplier for battery protection boards and BMS modules.
Product Details
Key Features
Overcharge protection (OVP) for each cell
Over-discharge protection (ODP) for deep discharge prevention
Over-current protection (OCP) during discharge
Short circuit protection (SCP) for fault conditions
Cell balancing available on multi-cell versions
Compact low-profile design for battery pack integration
NTC thermistor for temperature monitoring
Low quiescent current for minimal standby drain
Technical Specifications
Battery Type | Li-ion / Li-polymer (3.7V nominal per cell) |
Cell Configuration | 1S / 2S / 3S / 4S (configurable) |
Charge Voltage | 4.2V / 8.4V / 12.6V / 16.8V per config |
Discharge Current | 3A / 5A / 10A / 15A (configurable) |
Cell Balancing | Available on multi-cell (2S+) versions |
PCB Type | FR-4, 2-layer |
Certifications | CE, RoHS, FCC, UN38.3 compliant design |
Main Components
Battery protection IC (DW01/TP4056/etc.), power MOSFETs (charge/discharge), current sense resistor, NTC thermistor, balancing resistors (multi-cell), SMD passive components, B+ B- P+ P- connection pads
Why Choose Brightlx
PCBA Assembly Services | Custom LED Lens & Plastic Development Optical design based on your target IES file Lens prototyping making Custom tooling manufacturing Mass production for custom LED optics Internal dark room and Goniophotometer |
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