Published record
Cylindrical form-factor illustration, not a photograph of DFD LFR65120
Form-factor illustration · not a model photograph
LFP / LiFePO₄Cylindrical

DFD LFR65120

DFD LFR65120: 50Ah, 3.21V LFP cylindrical battery cell. Dimensions Ø65.2 × 122.6 mm, weight 895g, cycle life 2,000 cycles.

Capacity

50Ah

Chemistry

LFP / LiFePO₄

Format

Cylindrical

Weight

895g

Specification

Engineering parameters

Core fields 4/4 · 0 individually confirmed fields
Coverage counts capacity, voltage, dimensions and weight; it does not certify the model. Missing fields are not zero. Expand each metric to inspect its conditions and evidence.

BrandDFD
ModelLFR65120
Form factorCylindrical
ChemistryLFP / LiFePO₄
Nominal capacity50Ah
Nominal voltage3.21V
Voltage range2.5–3.65 V
DimensionsØ65.2 × 122.6 mm
ApplicationRechargeable
Energy (calculated)161 Wh
Gravimetric energy density (calculated)179 Wh/kg
Volumetric energy density (calculated)392 Wh/L
Max continuous charge
≤60 A
Conditions & source

由规格书额定容量 50 Ah × 原文 1.2C 换算。 5.1.7 最大持续充电电流 Max Charge Continuous Current 1.2C(≤80%SOC)

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Original excerpt

5.1.7 最大持续充电电流 Max Charge Continuous Current 1.2C(≤80%SOC)

Source datasheet (access rules apply)
Max continuous discharge
≤75 A
Conditions & source

由规格书额定容量 50 Ah × 原文 1.5C 换算。 5.1.8 最大持续放电电流 Max Discharge Continuous Current 1.5C

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Original excerpt

5.1.8 最大持续放电电流 Max Discharge Continuous Current 1.5C

Source datasheet (access rules apply)
Max pulse discharge
200 A / 30 s
Conditions & source

由规格书额定容量 50 Ah × 原文 4C 换算。 最大脉冲放电电流 Maximum Pulse Discharging Current 4C 电芯温度低于 55°C,且最长放电时间为 30s。 The maximum discharge time can last 30s with cell temperature below 55°C

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Original excerpt

最大脉冲放电电流 Maximum Pulse Discharging Current 4C 电芯温度低于 55°C,且最长放电时间为 30s。 The maximum discharge time can last 30s with cell temperature below 55°C

Source datasheet (access rules apply)
Operating temperature
Charge -20–60 ℃; Discharge -30–60 ℃
Conditions & source

hs) 5.1.13 工作环境温度 Operating Temperature 充电 Charge:-20°C~60°C 放电 Discharge:-30°C~60°C 5.1.14 储存环境要求 Storage Requirements 温度 Temperature:-40°C~60°C 存储环境湿度≤85%RH,无凝露 Humidity < 85%RH, No condensation 5.1.15 应用海拔 Operating Alt

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Source datasheet (access rules apply)

技术参数及绝对放电范围一致,为-30~60℃。

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Original excerpt

广西宁福新能源科技有限公司 Guangxi New-fortune New Energy Technology Co., Ltd. 编号:DFD-03-G-TD-008 版本:V1.0 生效日期:2025 年 9 月 28 日 LFR65120-50Ah 第 7页共 22页 5. 产品规格 Specification 5.1 技术参数 Technical Parameters 序号 No. 项目 Item 规格要求 Specification Requirements 5.1.1 额定容量 Nominal Capacity 50Ah RT@1/3C Discharge 50Ah RT@1C Discharge 5.1.2 标称电压 Standard Voltage 3.21V RT@1/3C Discharge 3.16V RT@1C Discharge 5.1.3 标准充电 Standard Charge 1/3C CC to 3.65V,3.65V CV to 0.05C 5.1.4 标准放电 Standard Discharge 1/3C CC to 2.5V 5.1.5 充电截止电压 Charging Cut-off Voltage 3.65V 5.1.6 放电截止电压 Discharging Cut-off Voltage 2.5V(T>0℃) 2.0V(T≤0℃) 5.1.7 最大持续充电电流 Max Charge Continuous Current 1.2C(≤80%SOC) 5.1.8 最大持续放电电流 Max Discharge Continuous Current 1.5C 5.1.9 内阻(20%SOC@25℃) Internal Resistance ≤0.7mΩ 5.1.10 电芯重量 Weight 895±20g(含 PET 膜) 5.1.11 能量密度 Energy Density ≥179Wh/kg; ≥400Wh/L RT@0.33C Discharge 5.1.12 月自放电 Residual capacity ≤3.0%/月(25℃,100%SOC,新鲜电池 3 个月后) Per month ≤3.0%, (25℃, 100%SOC Fresh cells after 3 months) 5.1.13 工作环境温度 Operating Temperature 充电 Charge:-20℃~60℃ 放电 Discharge:-30℃~60℃ 5.1.14 储存环境要求 Storage Requirements 温度 Temperature:-40℃~60℃ 存储环境湿度≤85%RH,无凝露 Humidity < 85%RH, No condensation 5.1.15 应用海拔 Operating Altitude <5000m

Source datasheet (access rules apply)
Internal resistance
≤0.7 mΩ · method unspecified
Conditions & source

5.1.9 内阻(20%SOC@25°C) Internal Resistance ≤0.7mΩ

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Source datasheet (access rules apply)
Cell weight
895 g
Conditions & source

5.1.10 电芯重量 Weight 895±20g(含 PET 膜)

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Source datasheet (access rules apply)
Cycle life
≥2,000 cycles · EOL 80%
Conditions & source

25±2℃、0.5C充电及0.5C放电、容量保持率80%;阶梯1C和45℃另列,不合并。

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Original excerpt

广西宁福新能源科技有限公司 Guangxi New-fortune New Energy Technology Co., Ltd. 编号:DFD-03-G-TD-008 版本:V1.0 生效日期:2025 年 9 月 28 日 LFR65120-50Ah 第 9页共 22页 5.3.2 最大脉冲放电电流 Maximum Pulse Discharging Current 4C 电芯温度低于 55℃,且最长放电时间为 30s。 The maximum discharge time can last 30s with cell temperature below 55℃ 5.3.3 标准放电温度 Standard Discharging Temperature 25℃±2℃ 电芯温度。 Cell Temperature. 5.3.4 绝对放电温度 Absolute Discharging Temperature -30℃ ~ 60℃ 无论电芯处在何种放电模式,一旦发现电芯温度超过绝对放电 温度范围即停止放电。 No matter what the discharging model is, once the temperature of the cell is above the absolute discharging temperature, discharging should be stopped. 5.3.5 其他放电模式 Other Discharge model (D-Rate) 电芯温度 Cell Temperature -30℃ -25℃ -20℃ -10℃ 0℃ 5℃ 15℃ 20 ~ 45℃ 45 ~ 55℃ 60℃ SOC 0% ~ 100% 0.5C 0.5C 1.0C 1.0C 1.0C 1.0C 1.0C 1.5C 1.0C 0.33C 6. 常规性能 General Performance 序号 NO. 测试项目 Item 测试方法 Test Method 判定标准 Decision Criteria 6.1 室温循环 Cycle Life 在 25℃±2℃环境下用 0.5C 恒流充电至 3.65V,再恒压 3.65V 充电至电流 0.05C,搁置 30 分钟,用 0.5C 电流放电至 2.5V; 搁置 30 分钟,重复以上步骤,直到放电容量是额定容量的 80%。 In an environment of 25℃±2℃, perform the following steps: 1. Charge at a constant current of 0.5C until reaching 3.65V. 2. Continue charging at a constant voltage of 3.65V until the charging current drops to 0.05C. 3. Rest for 30 minutes. 4. Discharge at a constant current of 0.5C until the voltage reaches 2.5V. 5. Rest for another 30 minutes. 6. Repeat the above steps until the discharge capacity is 80% of the rated capacity. ≥2000Cycles

Source datasheet (access rules apply)

Not provided: Max pulse charge.

Source note: Values should be verified against the latest manufacturer datasheet before pack design or procurement approval. Calculated values derive from the nominal figures above and are not manufacturer ratings.

Second source

Similar cells

Same chemistry and format, with nominal capacity within 10%. This is a starting point, not a confirmation that the cells are interchangeable.

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