DALY BMS Li-ion 20S 72V 30A BMS Battery Management System for 18650 Battery Pack Balanced Charging Board

The DALY 20S 72V 30A BMS (Battery Management System) is a premium-grade protection board engineered for 20S Lithium-ion battery packs (72V). It combines high-quality MOSFETs and imported ICs to deliver reliable performance, advanced protection, and a longer battery lifespan. This DALY BMS 72V model ensures stable operation under demanding conditions—ideal for electric vehicles, solar storage, and DIY power systems.

Configuration & Compatibility

This 20S Lithium-ion BMS is designed exclusively for 72V Li-ion battery packs. It supports popular lithium cell formats such as 18650, 21700, and 36500 cylindrical cells, as well as prismatic cells. Please note that it is not compatible with LiFePO4, LTO, or Li-Metal batteries.

Advanced Protection Features

• Overcharge & Over-discharge Protection: Automatically stops charging above 4.25V/cell and discharging below 3.0V/cell to protect your battery from voltage damage.
• Temperature Protection: Prevents overheating with automatic shutdown around 70°C and low-temperature cut-off at -20°C.
• Short Circuit Protection: Instantly cuts off output in case of wiring errors or component failure.
• Overcurrent Protection: Shields the battery from overload and excessive discharge currents.

Certifications & Safety Assurance

Complies with international quality and safety standards — ISO, FCC, RoHS, PSE, and CE certified for guaranteed reliability and performance.

Ideal Applications

• Solar energy storage systems
• Electric bikes (E-bikes) and scooters
• Electric skateboards and hoverboards
• Boats, campers, and RV energy systems
• Power tools and industrial battery packs
• Lawn mowers and household backup systems

Package Contents

• 1 × DALY 20S 72V 30A Li-ion BMS module
• 1 × Balanced wire harness (17-pin connector)
• 1 × User manual and installation guide

Key Advantages

• Equipped with Seiko IC (Japan) for ultra-stable performance and balanced power distribution.
• High load capacity – continuous discharge up to 30A with heat-dissipating aluminum cooling design.
• Ultra-low power consumption (<50μA) to extend standby battery life.
• Durable PCB design with anti-corrosion, water-resistant, and ESD-protected conformal coating for long-term reliability.

Upgrade your energy system with the DALY 20S 72V 30A BMS — the perfect Lithium-ion Battery Management System for stable performance, superior protection, and extended battery health.