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Flash 4S 30A 148V Li-Ion Lithium 18650 Battery Protection Board

Rs. 164
Rs. 249 Rs. 164
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  • Continuous 30A current, 56A instantaneous discharge
  • Ensures voltage stability with balanced current of 58mA
  • Protects the battery from harmful voltage extremes
  • Small size (56x47mm) and only 19g in weight
  • Working current ≤30uA, sleep current ≤20uA during over-discharge
  • Functions well in temperatures from -30°C to +80°C
  • Comes with cables for convenient installation and use

Flash 4S 30A 148V Li-Ion Lithium 18650 Battery Protection Board

The Flash 4S 30A 148V Li-Ion Lithium 18650 Battery Protection Board is a high-performance protection board designed for 4S lithium iron phosphate batteries. With a continuous discharge current of up to 30A and an instantaneous discharge of 56A, this board ensures safe and efficient operation of your battery system. It features a built-in balance circuit that maintains voltage stability and prolongs battery life. This compact protection board comes with an integrated cable for easy setup, supporting fast charging up to 20A with a charging voltage of 14.8V. Additionally, the board operates within a wide temperature range from -30°C to +80°C, making it suitable for various applications.

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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Package Includes

1 x Flash 4S 30A 148V Li-Ion Lithium 18650 Battery Protection Board

Specifications

Specification Details
Brand SG Flash
ROHS Complaint Yes
Material Epoxy
Dimensions Width 2.2 cm
Dimensions Height 1.8 cm
Dimensions Weight 19g
Power Features Power Source DC
Power Features Other Power Features This board is 4 string 3.2V Lithium iron phosphate battery protection board; High current protection board, continuous 30A current, with balance circuit. The board comes with cable.
PCB Board Size 56x47mm/2.2x1.85"
Discharge Continuous Discharging Current 30A (MAX)
Discharge Instantaneous Discharge Current 56A
Charge Charging Voltage 14.8V
Charge Charging Current 20A (MAX)
Balance Detect Voltage 3.60±0.05V
Balance Release Voltage 3.59±0.05V
Balance Current 58mA
Self-Consumption Working Current ?30uA
Self-Consumption Sleep Current (when Over-discharge) ?20uA
Working Temperature Range -30°C to +80°C

Customer Reviews

Based on 15 reviews
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(12)
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j
jayanti
Helpful Customer Support

Customer service promptly answered my technical questions about load current limits and capacitor recommendations, guiding me to safely use the board with my brush motor setup and battery pack.

p
phool
Good Build Quality

The board is made with quality MOSFETs and components, providing reliable protection and balance functions. It feels durable and well-constructed for long-term battery management in various applications.

r
rakeeba
Reliable Battery Protection

This 4S 30A protection board effectively safeguards lithium-ion batteries from overcharge, over-discharge, short circuit, and overcurrent, ensuring safe operation and longer battery life in my power tools and DIY projects without any issues.

c
cheete
Smooth Operation Confirmed

The board operates smoothly with continuous discharge up to 30A and balanced charging. It handled my 4-series 18650 battery pack reliably without overheating or unexpected shutdowns during prolonged use sessions.

j
jafrin
Compact Size Advantage

The compact 46x60mm size fits easily inside battery packs without adding bulk. Installation was straightforward, making it ideal for custom battery assemblies in drills and LED lighting systems with tight space constraints.

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