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  • FT48100E

    FT48100E 48V 100Ah LiFePO4 battery pack for solar storage system

    FT48100E 48V 100Ah LiFePO4 battery pack for solar storage system S/N Details Parameters Remarks 1 Nominal voltage 51.2V Mean Operation Voltage 2 Rated capacity Typical 100Ah Standard discharge(0.2C) after standard charge Minimum 97Ah 3 Charge Charge voltage 58.4±0.2V Charge Moe 0.2C to 58.4V, then 58.4V to 0.02C (CC/CV) Standard Charge current 20A Max charge current 50A Charge cut-off voltage 58.4±0.2V Recommended float charge voltage ( for standby use) 55.2±0.1V 4 Discharge Standard discharge current 20A Max continuous discharge current 80A Max. Pulse current 100A (<30S) Discharge Cut-off voltage 32V 5 Cycle life ≥ 2000 cycles  0.2C 100% DOD 6 Operation Temperature Range Charge:0~45℃ 60±25%R.H. Bare Cell Discharge:-20~60℃ 7 Storage Temperature Range 0~35℃ 60±25%R.H.               at the shipment state 8 Weight Approx: 50.1kg 9 Size 243 X 258 X 721mm 10 Plastic Case Metal

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  • FT1212E

    FT1212E 12V 12Ah LiFePO4 battery pack replacement lead acid battery

    FT1212E 12V 12Ah LiFePO4 battery pack is a high power, high reliablity lifepo4 battery with more than 2000 cycles

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  • FT1207E 12V 7AH LiFePO4 battery pack replacement lead acid battery

    FT1207E 12V 7AH LiFePO4 battery pack replacement lead acid battery

    FT1207E 12V 7AH LiFePO4 battery pack is a high power, high reliablibilty lifepo4 battery with more than 2000 cycles

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  • LF26650 3.2V 3200mAh LiFePO4 cell used for solar street light, solar storage system etc

    LF26650 3.2V 3200mAh LiFePO4 cell used for solar street light, solar storage system etc

    LF26650 3.2V 3200mAh LiFePO4 cell used for solar street light, solar storage system etc S/N Details Parameters Remarks 1 Nominal voltage 3.2V Mean Operation Voltage 2 Rated capacity Typical 3200mAh Standard discharge(0.2C) after standard charge Minimum 3200mAh 3 Charge Charge voltage 3.65±0.2V Charge Mode 0.2C to 3.65V, then 3.65V to 0.02C (CC/CV) Standard Charge current 640mA Max charge current 1600mA Charge cut-off voltage 3.65±0.2V Recommended float charge voltage ( for standby use) 3.45±0.1V 4 Discharge Standard discharge current 640mA Max continuous discharge current 3200mA Max. Pulse current 9600mA (<30min) Discharge Cut-off voltage 2V 5 Cycle life ≥ 2000 cycles  0.2C 100% DOD 6 Operation Temperature Range Charge:0~45℃ 60±25%R.H. Bare Cell Discharge:-20~60℃ 7 Storage Temperature Range 0~35℃ 60±25%R.H. at the shipment state 8 Weight Approx: 83g 9 Size Φ26.3 X 66.5mm

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  • FT1210E 12V 10Ah LiFePO4 Battery pack replaced lead acid battery

    FT1210E 12V 10Ah LiFePO4 Battery pack replaced lead acid battery

    FT1210E 12V 10Ah LiFePO4 Battery pack replaced lead acid battery S/N Details Parameters Remarks 1 Nominal voltage 12.8V Mean Operation Voltage 2 Rated capacity Typical 10Ah Standard discharge(0.2C) after standard charge Minimum 10Ah 3 Charge Charge voltage 14.6±0.2V Charge Moe 0.2C to 14.6V, then 14.6V to 0.02C (CC/CV) Standard Charge current 2A Max charge current 5A Charge cut-off voltage 14.6±0.2V Recommended float charge voltage ( for standby use) 13.8±0.1V 4 Discharge Standard discharge current 2A Max continuous discharge current 10A Max. Pulse current 30mA (<30S) Discharge Cut-off voltage 2V 5 Cycle life ≥ 2000 cycles  0.2C 100% DOD 6 Operation Temperature Range Charge:0~45℃ 60±25%R.H. Bare Cell Discharge:-20~60℃ 7 Storage Temperature Range 0~35℃ 60±25%R.H. at the shipment state 8 Weight Approx. 1.65kg 9 Size 77 X 170 X 180mm

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  • FT12100E

11.1V 5200mAh battery built with PCM design for detector

2018-09-13

Foreword: Portable detector has become the important tool of modern site test and provides efficient, portable, convenient and abundant backup power supply solution, which is the assurance of long-term site work for tester. Because of its advantages, 18650 lithium ion battery has been the preferred backup power supply of high-tech testing instrument.


Ⅰ. Design requirements


Backup lithium ion battery of detector design requirements


Based on the features of flaw detector with high voltage and long working hour, the quality and stability of the device is very important, which requires that its power supply must have many single batteries with large capacity in parallel and series. During the operating process of flaw detector, a large amount of data need to be kept, so precise capacity display and alarm system notice users to keep the data in time to improve working efficiency. This backup power solution of flaw detector adopts intelligent chip. The host machine reads the capacity and relevant important data of intelligent chip by I2C communication mode and monitors the battery at every time so as to notice user for reasonable operation in time. Large Power integrated Sanyo battery has advantages of high specific energy, light weight, small size, long cycle life, good security, high voltage and nice consistency. Protection value is 12A, continuous working current is 7A, and capacity is 5000mAh, which fully meets the power requirement of device. The concrete design parameters are as follow:


1)Design requirement of the type of lithium ion battery: 18650-3S2P/5000mAh/11.1V


2)Design requirement of electric circuit:


1、Over-charged protection voltage of single battery: 4.35±0.25V


2、Over-charged recovery voltage of single battery: 4.15±0.50V


3、Over-discharged protection voltage of single battery: 2.40±0.08V


4、Over-discharged recovery voltage of single battery: 3.00±0.10V


5、Over-discharge cut-off current of battery pack (10ms): 30~35A


6、Over temperature protection value of battery pack (restorable): 70±5℃


7、The finished product has protective function of short circuit and reverse-charging.


3)Design requirement of cycle life: 300~500 times (national standard of charging and discharging)


4)Design requirement of housing dimension: refer to host machine housing


Ⅱ. Lithium ion battery design scheme of flaw detector:


1)Intelligent voltmeter protection board (PCM): it adopts SBS intelligent battery management system, uses advanced capacity calculation principle to accurately calculate the battery capacity, and reports the battery capacity information to the host machine through SMBUS. It also protects the functions of a rechargeable smart battery pack. Due to the chemical characteristics of lithium battery itself, overcharge, over-discharge, short circuit, overcurrent and over-temperature protection functions need to be provided to avoid causing combustion, explosion and other dangers.


2)18650 lithium ion battery/18650/2600mAh/3.7V Li-ion cell(Sumsung)


3)Temperature switch: it is designed for temperature protection. When the battery is heated up to 70±5℃ due to any issues, the temperature switch begins to protect the battery.


4)MOSFET: it works as the switch in protective circuit to make sure that the voltages of two ends won’t be up and down, so that the voltage will be stable.


5)The capsulation of battery pack (housing)

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If you need any lithium battery or battery packs, please send us your detailed information about the voltage, the capacity and the size.

 
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If you need any lithium battery or battery packs, please send us your detailed information about the voltage, the capacity and the size.