Item specifics
Description
1S 3.2V LiFePO4 Battery Protection Board Product Overview
The 1S 3.2V LiFePO4 Battery Protection Board is a battery protection board specifically designed for 1S (single cell) LiFePO4 (Lithium Iron Phosphate) rechargeable batteries, featuring a Japanese RICOH dedicated LiFePO4 protection IC with built-in high-precision voltage detection circuitry. The 1S 3.2V LiFePO4 Battery Protection Board precisely controls the battery charging and discharging process through low on-resistance MOSFETs, effectively preventing abnormal conditions such as overcharge, overdischarge, overcurrent, and external short circuits. The charging voltage is DC 3.6V (CC/CV mode) with a maximum continuous discharge current of 2.3A. Specifically tailored for 3.2V LiFePO4 batteries, the 1S 3.2V LiFePO4 Battery Protection Board effectively extends battery service life and ensures safe and reliable battery pack operation.
1S 3.2V LiFePO4 Battery Protection Board Key Features
The 1S 3.2V LiFePO4 Battery Protection Board utilizes a Japanese RICOH LiFePO4 rechargeable battery protection IC with built-in high-precision voltage detection circuitry. Overcharge detection voltage is 3.75V (accuracy < ±0.025V) with a detection delay of 1.2 seconds; overcharge release voltage is 3.6V (accuracy < ±0.025V). Overdischarge detection voltage is 2.1V (accuracy < ±0.05V) with a detection delay of 140ms; overdischarge release voltage is 2.3V (accuracy < ±0.05V). Overcurrent detection voltage is 200mV (accuracy < ±15mV) with overcurrent detection current of 4.5A (accuracy < ±0.3A), detection delay of 12ms, and automatic recovery after overcurrent. Short circuit protection detection delay is less than 400μs with automatic recovery after external short circuit. Protection circuit internal resistance is less than 45mΩ. The charger connection terminal adopts high-voltage withstand components. Built-in three-stage overcurrent detection circuitry (Overcurrent 1, Overcurrent 2, Load Short Circuit). Single-cell self-consumption current is less than 6μA with extremely low standby power consumption. Operating temperature range is -40℃ to +85℃ with storage temperature range of -40℃ to +125℃. Product dimensions are 26×3.6×1.79mm (L×H).
Wiring Instructions
B+ connects to battery positive; B- connects to battery negative; P+ connects to charge/discharge positive (shared charging and discharging terminal); P- connects to charge/discharge negative (shared charging and discharging terminal).
1S 3.2V LiFePO4 Battery Protection Board Applications
The 1S 3.2V LiFePO4 Battery Protection Board is specifically designed for 1S LiFePO4 rechargeable battery packs and is widely used in various devices powered by 3.2V LiFePO4 batteries. Applications include solar energy storage systems, portable lighting equipment, power tool battery packs, emergency power supplies, security surveillance equipment, smart home sensors, industrial instruments, portable medical devices, communication base station backup power, outdoor power supplies, children's toys, e-bike battery pack protection, and various LiFePO4 battery pack assembly projects.
1S 3.2V LiFePO4 Battery Protection Board Key Advantages
The 1S 3.2V LiFePO4 Battery Protection Board features a Japanese RICOH dedicated LiFePO4 protection IC, which is precisely optimized for the 3.2V chemical characteristics of LiFePO4 batteries compared to general-purpose protection chips, with overcharge protection voltage of 3.75V and overdischarge protection voltage of 2.1V perfectly matching LiFePO4 battery parameters. The 1S 3.2V LiFePO4 Battery Protection Board has built-in high-precision voltage detection circuitry with overcharge and overdischarge detection voltage accuracy of ±0.025V and ±0.05V respectively, far exceeding the precision level of comparable products. Three-stage overcurrent detection circuitry (Overcurrent 1, Overcurrent 2, Load Short Circuit) on the 1S 3.2V LiFePO4 Battery Protection Board provides graded current protection with overcurrent detection accuracy of ±0.3A, delivering comprehensive battery safety. The 1S 3.2V LiFePO4 Battery Protection Board offers ultra-fast short circuit protection response time of less than 400μs, cutting off the circuit in the shortest possible time, effectively preventing safety accidents caused by short circuits. Ultra-low self-consumption current of less than 6μA significantly extends battery pack standby time, making the 1S 3.2V LiFePO4 Battery Protection Board particularly suitable for long-term standby applications. Charging terminals on the 1S 3.2V LiFePO4 Battery Protection Board adopt high-voltage withstand components, effectively preventing abnormal charger high voltage from damaging the board. Protection circuit internal resistance of less than 45mΩ effectively reduces power loss and heat generation, improving overall energy efficiency of the 1S 3.2V LiFePO4 Battery Protection Board. Ultra-compact dimensions of only 26×3.6×1.79mm enable the 1S 3.2V LiFePO4 Battery Protection Board to be easily integrated into various compact devices. Automatic recovery after both overcurrent and short circuit conditions eliminates the need for manual intervention, adding to the convenience of the 1S 3.2V LiFePO4 Battery Protection Board.
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FAQ
1. What is this protection board?
The 1S 3.2V LiFePO4 Battery Protection Board is a battery protection board designed specifically for 1S (single-cell) 3.2V Lithium Iron Phosphate (LiFePO₄) rechargeable batteries. Its main job is to monitor the battery and cut off the circuit to prevent damage in case of abnormalities.
2. What are its key specifications?
Applicable Battery: 1S (single-cell) 3.2V LiFePO₄ battery.
Overcharge Protection: Detection voltage 3.75V ± 0.025V; Release voltage 3.6V ± 0.025V.
Over-discharge Protection: Detection voltage 2.1V ± 0.05V; Release voltage 2.3V ± 0.05V.
Overcurrent Protection: Detection current approx. 4.5A.
Continuous Discharge Current: Max 2.3A.
Operating Temperature: -40℃ ~ +85℃.
Quiescent Current: < 6μA (ultra-low self-consumption).
Dimensions: 26*3.6*1.79mm.
3. What package does it use?
The 1S 3.2V LiFePO4 Battery Protection Board comes as an ultra-thin PCBA module, making it suitable for integration into various portable devices.
4. How do I connect this board?
The connections are straightforward, with four clearly marked solder pads on the 1S 3.2V LiFePO4 Battery Protection Board:
B+: Connect to battery positive.
B-: Connect to battery negative.
P+: Connect to charge/discharge positive (common port).
P-: Connect to charge/discharge negative (common port).
5. What are its typical applications?
The 1S 3.2V LiFePO4 Battery Protection Board is suitable for any device using a single 3.2V LiFePO₄ cell, such as:
Handheld devices, power tools
Solar energy storage systems
Smart home, security devices
Applications requiring replacement of primary or standard rechargeable batteries.
6. Does it have any indicator lights?
The 1S 3.2V LiFePO4 Battery Protection Board does not have an LED indicator. Status is typically determined by the connected external device (like a charger or load).
7. What protection features does it offer?
The 1S 3.2V LiFePO4 Battery Protection Board integrates four layers of protection:
Overcharge Protection: Prevents damage from over-voltage.
Over-discharge Protection: Prevents damage from under-voltage.
Overcurrent Protection: Prevents damage from excessive output current.
Short Circuit Protection: Immediately cuts off the circuit if the output is shorted.
8. How fast is the short circuit protection?
Extremely fast. The delay time for short circuit protection on the 1S 3.2V LiFePO4 Battery Protection Board is less than 400 microseconds (µs) , effectively preventing damage from high-current discharge.
9. What is its quiescent current (self-consumption)?
The quiescent current of the 1S 3.2V LiFePO4 Battery Protection Board is less than 6µA, meaning it consumes very little power when idle, which helps extend battery standby time.
10. What should I be careful about?
Battery Type: The 1S 3.2V LiFePO4 Battery Protection Board is specifically for 3.2V LiFePO₄ batteries and must not be used with 3.7V Li-ion/polymer batteries.
Current Limit: Do not exceed the continuous discharge current of 2.3A.
First Use: If the battery doesn't discharge after connection, connect a charger briefly to activate the 1S 3.2V LiFePO4 Battery Protection Board.
Anti-static: Although the 1S 3.2V LiFePO4 Battery Protection Board has some protection, avoid touching it directly during installation.