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High Voltage / Relay BMS

350A Relay BMS 4S-35S Peak 2000A For LiPo LiFePO4

The relay BMS can be one of the perfect solution for large vehicle starting power, engineering vehicle, low speed four-wheel vehicle, RV or any other device you want to place it in.

It supports 500A continuous current output, and the peak current can reach 2000A. It is not easy to be heated or damaged. If damaged, the main control will not be affected. You only need to replace the relay to reduce maintenance costs. You can also develop your own application system according to your own needs. We can provide BMS interface communication protocol.

We’ve done several successful solar energy storage project. Contact us if you want to build your high voltage system!


Product Detail

Product Tags

Specifications

3.2 LiFePo4 3.7V Lithium iron
4S 350A Same 3S 350A Same
8S 350A Same 7S 350A Same
12S 350A Same 10S 350A Same
16S 350A Same 13S 350A Same
20S 350A Same 17S 350A Same
24S 350A Same 20S 350A Same
28S 350A Same 24S 350A Same
32S 350A Same 28S 350A Same
30S 350A Same
32S 350A Same
35S 350A Same

Product Information

Brand Name: HeltecBMS
Material: PCB board
Origin: Mainland China
Warranty: One year
MOQ: 1 pc
Battery Type: 3.2V LFP / 3.7V NMC
Balance type: Passive balancing

Customization

  • Customized logo
  • Customized packaging
  • Graphic customization

Package

1. 350A Relay BMS * 1set. (Other parts according to your needs)
2. Anti-static bag, anti-static sponge and corrugated case.

Purchase Details

  • Shipping From:
    1. Company/Factory in China
    2. Warehouses in United States/Poland/Russia/Brazil
    Contact Us to negotiate shipping details
  • Payment: 100% TT is recommended
  • Returns & Refunds: Eligible for returns and refunds

Features

  • Continuous 300A, Instantaneous 2000A
  • Double M8 silver plated nuts
  • Dual PCB Design Scheme
  • Double-layer MOS tube design
  • Dual MOS + relay
  • Double-layer aluminum magnesium heat dissipation
heltec-high-voltage-bms-relay-intro
heltec-high-voltage-bms-relay-function

Product Parameters

Technical Index

Parameters

Standard Continuous Current

60A

120A

150A

200A

500A

Continuous Current Data

Data with a temperaure not hight than 60℃ for 5 minutes in an open space at room temperature of 20℃

Main Circuit On-Resistance

<2.8mR

<1.9mR

<1.5mR

<1.2mR

<0.3mR

Charging Current (Same Port)

60A

120A

150A

200A

500A

Discharge Current (Same Port)

60A

120A

150A

200A

500A

Standard Charging Voltage

Ternary: 4.2V * String number
Lithium iron: 3.65V * String number

Operating Temperature

-30~100℃

Over-charge Voltage Protection

Detection Voltage

Ternary: 4.235±0.03V
Lithium iron: 3.650±0.03V

Detection Delay

500-1500ms

Release Voltage

Ternary: 4.18±0.03V
Lithium iron: 3.55±0.03V

Equalization Voltage

Turn-on Voltage

Ternary ≥ 4.19±0.03V
Lithium iron ≥ 3.59±0.03V

Release Voltage

Ternary ≥ 4.19±0.03V
Lithium iron ≥ 3.59±0.03V

Balance Current

100-500mA

Over-discharge Voltage Protection

Detection Voltage

Ternary: 2.8±0.1V
Lithium iron: 2.35±0.1V

Detection Delay

500-1500ms

Release Voltage

Ternary: 3.00±0.1V
Lithium iron: 2.55±0.1V

Discharge Over-current Protection

Detection Current

3 times the continuous current

Detection Delay

100-400ms

Release Condition

Disconnect Load/Charge Active

Short Circuit Protection

Trigger Condition

external load short circuit

Detection Delay

150-600μs

Release Condition

Disconnect Load/Charge Active

Temperature Control Protection

Charge and Discharge Over Temperature Protection

75±5℃

Charge and Discharge High Temperature Release Temperature

75±5℃

Self Power Consumption

Release Condition

Disconnect Load/Charge Active

Working Power Consumption

<80μA

Sleep and Overdischarge
Power Consumption

<50μA

* We keep upgrading products to meet requirements of our clients, please contact our sales person for more accurate details.

Wiring Diagram

heltec-high-voltage-smart-relay-bms-wiring-diagramss

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