Price: $240.59
(as of May 16, 2025 16:22:18 UTC – Details)

DALY 4S 12 VOLT 250 AMP BMS, which comes with 5A 4S active balancer and 4.3 – inch touch screen display, supports RS485 or CAN and Wi – Fi Bluetooth communication. It is a lithium battery management system designed for 12V 4 cell LiFePO4 battery packs.With Wi-Fi module you can remotely monitor your lithium battery packs, and the display gives you all the information you need. Regardless of the distance, you can easily manage your battery system. DALY Battery Management System (BMS) protection circuit ensures safety at every use and every charge, includes cell balancing, active BMS protection, contains a circuit that handles cell balancing,low voltage cutoff, high voltage cutoff, short circuit protection, and high-temperature protection for increased performance and longer life. DALY BMS features a very small size, making it ideal for tight applications. Additionally, it includes lots of aluminum heat sinking. 12 volts BMS adopts an injection molding sealing process to provide dustproof, shockproof, waterproof, and anti-accumulation protection. It supports multiple parallel systems. Suitable for trolling motors, solar energy storage, home solar & power walls, marine applications, fish finders, flashers, boating electronics, off-grid homes, Portable Power Station, RV storage, RV fan, cool RV accessory, solar fan, solar power bank, solar battery. Protection Specifications: Single cell over-charging voltage protection (second level): 3.75V ± 0.05 Single cell over-charging voltage protection recover (second level): 3.65V ± 0.05 Total voltage over-charging protection (second level): 14.8V Total voltage over-charging protection recover (second level): 14.4V Single cell over-discharging voltage protection (second level): 2.2V ± 0.05 Short circuit protection conditions: external load short circuit
LITHIUM BATTERY MANAGEMENT SYSTEM: Provides comprehensive protection including cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection, and temperature protection for increased performance and extended life of your 4S 12 volt 250 amp battery systems.
2-IN-1 BLUETOOTH/WI-FI DONGLE: For local/remote battery monitoring through Smart BMS mobile app with real-time system alerts and customizable parameters.Whether you’re powering an RV/Marine getaway or keeping your portable power station running smoothly, DALY BMS provides the utmost confidence in your power system.
DALY BMS WITH 5A ACTIVE BALANCER: It enables faster cell balancing, less heat generation, higher energy efficiency, and increased system runtime. Our active balance BMS solutions are designed to be simple and be cost-effective.
BMS WITH A TOUCH SCREEN DISPLAY: enables you to program parameters into it on the go without the need to bring a laptop or phone for programming modifications. You can clearly see the status of your batteries, the voltages of each cell, the current flow, and many other useful monitoring parameters. This unit is a great addition to a DIY build!
5-YEAR WARRANTY. Packing list: 4S 12V 250 Amps Smart BMS ×1, 4.3inch display×1, 5A 4S Active Balancer×1, B-P-Output line ×1, 2-in-1 BT/WiFi dongle ×1, sampling cable ×1, NTC ×1, manual ×1. Easy to install – everything you need for setup and operation. Certifications: ISO/FCC/RoHS/PSE/CE approved.