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UG LAND INDIA

UG LAND INDIA 4S 30A 12.8V BMS 18650 Lithium Iron Phosphate Battery Protection Board (LiFePO4) Battery Module Over-Discharge/Over-Current

UG LAND INDIA 4S 30A 12.8V BMS 18650 Lithium Iron Phosphate Battery Protection Board (LiFePO4) Battery Module Over-Discharge/Over-Current

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  • 10 Days Returnable
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Parameter Specification
Brand UG LAND INDIA
Battery Type LiFePO4 (Lithium Iron Phosphate, 3.2V nominal per cell)
Number of Cells 4 Series (4S) – Total Pack Voltage: 12.8V nominal
Continuous Discharge Current 30A
Peak Discharge Current 40A – 50A (short duration)
Charging Voltage 14.6V (3.65V × 4 cells)
Overcharge Protection Voltage ~3.75V ± 0.05V per cell
Over-discharge Protection Voltage ~2.0V ± 0.1V per cell
Overcurrent Protection Yes (Typically triggers above 40A)
Short Circuit Protection Yes
Balancing Function Yes (Passive balancing to equalize voltage between cells)
Temperature Protection Optional (depends on version; may require external sensor)
Board Dimensions Approx. 65mm × 45mm × 4mm
Connector Type 5-pin JST/PH connector for cell balancing (B+, B-, B1, B2, B3, B4)
PCB Material High-quality FR4 with thick copper traces
Self-Consumption <50μA (low standby power drain)
Application LiFePO4 battery packs for solar energy storage, e-bikes, UPS, portable systems

Features:

  1. Designed for LiFePO₄ Cells

    • Specifically built to manage 4-cell LiFePO₄ (3.2V nominal per cell) packs for a total nominal voltage of 12.8V.

  2. Supports High Discharge Current

    • Handles up to 30A continuous discharge current, making it suitable for high-drain applications.

  3. Overcharge Protection

    • Cuts off charging when any cell voltage exceeds ~3.65V to prevent overcharging and increase battery lifespan.

  4. Over-discharge Protection

    • Prevents battery damage by disconnecting the load when any cell drops below ~2.0V.

  5. Overcurrent Protection

    • Activates when the output current exceeds a safe threshold (typically over 60A peak), protecting your battery and circuitry.

  6. Short Circuit Protection

    • Instant shutdown in case of output short circuit conditions to ensure safety.

  7. Automatic Recovery

    • Restores normal operation when the fault condition (overcurrent or short circuit) is cleared — no manual reset required.

  8. Cell Balancing Function (if included in model)

    • Automatically balances the charge between cells during charging, ensuring consistent performance and safety.

  9. Temperature and Self-Protection

    • Some versions may include thermal cut-off or self-resetting fuse components.

  10. Compact & Durable PCB Design

  • Lightweight, reliable, and easy to integrate into custom battery pack assemblies.

Description:

  • This board is 4 string 3.2V Lithium iron phosphate battery protection board.
  • Features: High current protection board, continuous 30A current, with balance circuit The board comes with cable.
  • Discharge: Continuous Discharging Current: 30A(MAX); Instantaneous Discharge Current: 56A. Charge:Charging Voltage: 14.8V; Charging Current: 20A (MAX).
  • Balance:Detect Voltage: 3.60±0.05V; Release Voltage: 3.59±0.05V; Balance Current: 58mA.
  • Over-charge Detect: 3.75±0.05V; Over-charge Release: 3.60±0.05V; Protect Delay: 1300MS.

Discharge: Continuous Discharging Current: 30A(MAX); Instantaneous Discharge Current: 56A Charge: Charging Voltage: 14.8V; Charging Current: 20A (MAX) Balance: Detect Voltage: 3.60±0.05V; Release Voltage: 3.59±0.05V; Balance Current: 58mA Over-charge Protect: Over-charge Detect: 3.75±0.05V; Over-charge Release: 3.60±0.05V; Protect Delay: 1300MS Over-discharge Protect: Over-discharge Detect: 2.1±0.08V; Over-discharge Detect delay: 145S; Release Voltage: 2.3±0.1V Over-current Protect: Detect Voltage: 200mV; Detect Delay: 20mS; Current Detect: 56±10A Release Condition: Cut Load; Inner Resistance: ≤20mΩ Self-Consumption: Working Current: ≤30uA; Sleep Current (when Over-discharge): ≤20uA Working Temperature Range: -30+80℃ PCB Board Size: 56x47mm/2.2x1.85"

Shipping & Returns

Return Policy According

• Order can be return within 10 days from date of delivery.

• Order return request cannot be accepted after 10 days from date of delivery.
• Return request window are available for only 10 days.
• After 10 days return window will closed and we cannot accepted any request.
• Customer will sent the order to seller by any courier.
• Customer will paid own of courier charges to seller warehouse.
             

Generate (RMT) Return Merchant Ticket

 Note : Take photo and upload. Condition of product. Enter Correct Name, Mobile, Email, Order id / Invoice number (any one ) you can enter. Select Payment mode

Cash On Delivery / Prepaid .
• After Submit Return Request within 12 - 24 hour receive (RMT) Return Merchant Ticket number to your registered mobile number and email id.
• When you receive (RMT) Return Merchant Ticket number then ship your return to our warehouse address by any courier.
• We will initiate refund after delivered your return order to our warehouse.
• For any query please call our helpline number +91-9999115521 or
  mail us support@uglandindia.com

Refund policy

Prepaid Customer

• Refund of the order will be initiated after receiving the product at the warehouse address

• You will receive a notification message or mail for confirmation, of receiving the product.

• Full order value amount will transfer to your bank account. Money will be credited 5-7 working days.
• Money will issue same day when confirmation will receive by message and mail.
• Refund will not issued if product is not the same as which orders are sent by us.
• We can provide reverse amount in the DISCOUNT coupon if the buyer wants and can apply coupon to purchase another or the same product. Money will deduct.
• Coupon validity available for 1 year.
• If return request receive after 10 days from the date of delivery. we will not issue refund.
 
Deduct Non Refundable Charges
• Refund money reverse to you only product amount and delivery charges
• Delivery charges will not refund in case order refuse delivery to accept order / Incorrect address mentioned
Order Cancellation Charges
Order cancellation charges will be deduct if in case your order is Picked up or handover to the courier department. Delivery charges will deduct.
Refund will reverse only product amount.

For any query, please Call/WhatsApp to our helpline number +91-9999115521/+91-9999115512

Any complaint or query also technical support mail us support@uglandindia.com
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