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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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| 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:
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Designed for LiFePO₄ Cells
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Specifically built to manage 4-cell LiFePO₄ (3.2V nominal per cell) packs for a total nominal voltage of 12.8V.
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Supports High Discharge Current
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Handles up to 30A continuous discharge current, making it suitable for high-drain applications.
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Overcharge Protection
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Cuts off charging when any cell voltage exceeds ~3.65V to prevent overcharging and increase battery lifespan.
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Over-discharge Protection
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Prevents battery damage by disconnecting the load when any cell drops below ~2.0V.
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Overcurrent Protection
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Activates when the output current exceeds a safe threshold (typically over 60A peak), protecting your battery and circuitry.
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Short Circuit Protection
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Instant shutdown in case of output short circuit conditions to ensure safety.
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Automatic Recovery
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Restores normal operation when the fault condition (overcurrent or short circuit) is cleared — no manual reset required.
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Cell Balancing Function (if included in model)
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Automatically balances the charge between cells during charging, ensuring consistent performance and safety.
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Temperature and Self-Protection
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Some versions may include thermal cut-off or self-resetting fuse components.
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Compact & Durable PCB Design
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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
Shipping & Returns
Return Policy According
• Order can be return within 10 days from date of delivery.
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
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.
For any query, please Call/WhatsApp to our helpline number +91-9999115521/+91-9999115512


