3S 4S 5S 100A BMS Protection Board with Active Balance for Li-ion/LiFePO4 Power Bank Solar E-bike UPS DIY Charger Module

p{margin-block-start: 0; margin-block-end: 0}All-in-One Battery Guardian! 3S/4S/5S 100A High Current BMS Protection Board with Active Balance, Full Protection for Li-ion/LiFePO4, Solar, E-bike, UPS.Key Features & Benefits⚡ One Board for 3-5S, Flexible Configuration: Supports 3, 4, or 5 series battery packs (configured as ordered). Ready for 11.1V/14.8V/18.5V systems. Plug & Play.️ Dual-Chemistry Design, Precision Protection: Dedicated versions for Li-ion (3.7V) and LiFePO4 (3.2V) with preset thresholds. Full protection: Over-charge, Over-discharge, Over-current (Charge/Discharge), Short-circuit, and Temperature (NTC).⚖️ Active Balancing, Extends Lifespan: Automatically balances cell voltages during charging, improves pack consistency, maximizes capacity and cycle life. 100A Robust Protection, Common/Separate Port: Multiple low-Rds(on) MOSFETs. Up to 80A continuous discharge (Separate Port) or 60A (Common Port). For high-power and sensitive applications.️ Industrial Reliability: Operating range -20℃ to +65℃. Compact white PCB (62x42mm). Durable for demanding DIY projects.ction BoardProduct Description:This smart BMS is the core for building safe, efficient lithium battery systems. Integrating comprehensive hardware protection with active balancing, it‘s ideal for DIY power banks, solar storage, e-bikes/scooters, robotics, and UPS. We offer dedicated versions for two major battery chemistries to ensure precise protection. CRITICAL PRE-PURCHASE NOTES! LIFESAVER!:❌ 【RULE #1: CHOOSE THE CORRECT BATTERY CHEMISTRY!】 Wrong choice causes incorrect protection voltages, leading to overcharge (FIRE RISK) or failure!If your cell nominal voltage is 3.2V (LiFePO4), you MUST choose the SKU with “LiFePO4-3.2V” in the name.If your cell nominal voltage is 3.6V or 3.7V (Li-ion/NMC/LiPo), you MUST choose the SKU with “Li-ion-3.7V” in the name.wer-on!⚠️ 【Wiring & Verification: Follow Diagrams, No Mistakes】ALWAYS wire strictly according to the diagram for your purchased series (3S/4S/5S) and port type (Common/Separate).You MUST double-check all connections with a multimeter before first power-on! Verify total voltage and each series polarity.4S5S✅ 【Required Skills & Accessories (Do Not Buy Without)】Basic soldering skill and a multimeter are REQUIRED. This is a bare board. NO wires, connectors, batteries, or charger included.You MUST use a dedicated Lithium Battery Charger! Lead-Acid chargers are PROHIBITED! Their high voltage can permanently damage the BMS, causing protection failure and FIRE HAZARD.For continuous current >50A, solder extra copper wires per instructions for heat reduction. 【Key Concept Clarification】“100A” is the instantaneous protection threshold, NOT continuous current. Refer to specs below for continuous ratings (80A Sep/60A Com).Select BMS current rating based on your load‘s max power draw, NOT battery capacity (Ah).Specifications:*(Present the two parameter tables clearly under headings: “Li-ion (3.7V) Version Specifications” and “LiFePO4 (3.2V) Version Specifications”)*Package IncludesBMS Protection Board x 1(Note: NO wires, connectors, batteries, or charger are included)