Battery-Management-Systems-BMS-Relay-8~20S-400A

$84.181pcs

8~20S 400A BMS relay module for high-voltage battery pack charge/discharge control and safety protection.

Dimensions 173 × 70 × 16 mm

2361 in stock

Category: Tag:
DESCRPIPTION AND FEATURES

Volume pricing is available starting at quantity 5 pieces. Inquire for details.

Product Overview

The 400A intelligent relay BMS equipped with a comprehensive range of functions. These functions include cell voltage detection, temperature detection, and high-voltage detection for real-time monitoring of battery status; battery balancing to ensure consistent performance across battery cells; customizable communication interfaces supporting CAN (Controller Area Network), 485, and TTL (Transistor-Transistor Logic) protocols to adapt to diverse application scenarios; GPRS and Bluetooth connectivity (with mobile APP compatibility) for remote data transmission and user interaction; sleep-wake-up control and delayed power-off features for energy conservation and operational safety; State of Charge (SOC) estimation to accurately assess remaining battery capacity; and MOSFET  control for precise regulation of battery charging, discharging, and overall operation.

Product Display

Label content is subject to the physical product.

Block Diagram

System Topology

Key Components BOM List

Component TypeModelSupplier
Main ControlHC32L072Wuxi Huadong MCU
Acquisition ChipAN49522Zhongying Electronics
Power104R0NSSilan Microelectronics

Interface Definitions

Battery negative pole

The wiring mark is B-. You need to reconnect the battery to the terminal before performing other operations.

The connection is labeled C-, black. The same-port MOS design uses one port for both charging and discharging.

Power output negative, connected to relay.

Wiring Diagram

Typical wiring diagram

Low-cost wiring diagram

Among them: 1 Relay, needs to be purchased by the customer based on actual application; common brands: Tyco, BYD, Kunshan Guoli, etc.

2 DC/DC buck module, 72V to 12V, output current needs to be above 2A, needs to be purchased by the customer based on actual application.

3 Pre-charge resistor, generally choose a 100W, 10 ohm resistor, needs to be purchased by the customer based on actual application.

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Shipping and Delivery

Shipping Cost

We only ship to the United States. Shipping costs are calculated based on the total order amount.

Shipping Method And Delivery Time

All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.

Payment:

We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .