DALY SMART BMS LFP 19S 100A

DALY Smart BMS LFP 19S 100A

The DALY Smart BMS LFP 19S 100A is a smart battery management system for nineteen-series LiFePO4 battery packs. A 19S LFP configuration uses nineteen nominal 3.2V cell groups in series, creating a battery around 60.8V nominal. This model is cataloged with a 100A continuous-discharge path, 50A charge current, common-port wiring, balancing and CAN communication, making it suitable for higher-current battery systems that need both pack protection and a communication layer for compatible controllers or monitoring equipment.

A smart BMS combines cell-group supervision with pack-level current and temperature management. CAN communication adds a structured data interface that can be used by compatible external equipment for battery status, diagnostics or control integration. Communication compatibility must be treated as a system-design requirement: the BMS and the connected controller, inverter or display need to use the same message protocol and wiring arrangement.

The 19S architecture places the pack in the 60V-class LFP segment. The published charge-voltage value of 69.35V corresponds to the configured 19-series LFP battery and provides an important reference for charger selection. The 100A continuous-discharge and 50A charge ratings describe different sides of the BMS power path and should not be treated as interchangeable values.

At these current levels, cable cross-section, connector resistance, terminal quality, fuse selection and enclosure cooling are critical. A low-resistance connection helps control voltage drop and temperature rise, while a loose terminal or undersized conductor can become a hot spot under sustained load. The BMS should be mounted so its heat can dissipate and so high-current cables do not place mechanical stress on the board or terminals. The pack design should also account for the cell manufacturer's current capability and the actual surge profile of the load.

Use this BMS with a 19S LiFePO4 pack and a load/charger combination designed for the same voltage and current class. Match the common-port wiring, balance harness, communication lead and CAN protocol to the target system. If the battery will connect to an inverter, controller or display, protocol compatibility should be established before final enclosure assembly. Select the fuse, cable and connectors for the intended continuous load with suitable thermal and safety margin.

Applications

• 19S LiFePO4 electric-scooter, e-rickshaw and utility-vehicle batteries.

• Solar and off-grid energy-storage battery packs.

• Smart battery walls and inverter backup systems.

• Industrial automation and high-capacity portable-power systems.

• Custom lithium battery projects requiring 100A-class discharge and CAN communication.

Installation Guide

Verify all nineteen cell-group voltages in sequence before connecting the balance harness. Follow the DALY common-port wiring arrangement for the main power path, and use correctly sized cable and securely crimped terminals. Route CAN wiring cleanly and keep it separated from unnecessary high-current switching loops. Commission the pack at controlled current while monitoring cell voltages, BMS temperature, cable temperature and communication stability before moving to full operating load.

Why Choose ARB Accessories?

ARB Accessories focuses on lithium-battery, EV, energy-storage and battery-pack assembly components. The catalog brings together BMS boards, connectors, insulation materials, battery boxes, wiring, cell interconnect materials, testing equipment and assembly tools. For battery builders, repair workshops and OEM buyers, sourcing related components from one specialist catalog can make specification matching and procurement easier. Final suitability should still be checked against the exact battery design, equipment model and electrical requirements before installation.