Published record
Cylindrical form-factor illustration, not a photograph of DFD LFR40135LE1
Form-factor illustration · not a model photograph
LFP / LiFePO₄Cylindrical

DFD LFR40135LE1

DFD LFR40135LE1: 20Ah, 3.2V LFP cylindrical battery cell. Dimensions Ø40.2 × 135.1 mm, weight 365g, cycle life 2,000 cycles.

Capacity

20Ah

Chemistry

LFP / LiFePO₄

Format

Cylindrical

Weight

365g

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
ModelLFR40135LE1
Form factorCylindrical
ChemistryLFP / LiFePO₄
Nominal capacity20Ah
Nominal voltage3.2V
Voltage range2.5–3.65 V
DimensionsØ40.2 × 135.1 mm
ApplicationRechargeable
Energy (calculated)64 Wh
Gravimetric energy density (calculated)175 Wh/kg
Volumetric energy density (calculated)373 Wh/L
Max continuous charge
≤24 A
Conditions & source

由规格书额定容量 20 Ah × 原文 1.2C 换算。 最大持续充电电流 Max. Continuous Charge Current 1.2C 25±2°C, 0~80%SOC

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Original excerpt

最大持续充电电流 Max. Continuous Charge Current 1.2C 25±2°C, 0~80%SOC

Source datasheet (access rules apply)
Max continuous discharge
≤60 A
Conditions & source

由规格书额定容量 20 Ah × 原文 3C 换算。 最大持续放电电流 Max. Discharge Current (Continuous) 3C 不支持循环 Not for Cycles

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Original excerpt

最大持续放电电流 Max. Discharge Current (Continuous) 3C 不支持循环 Not for Cycles

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

由规格书额定容量 20 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

nth 5.1.11 工作环境温度 Operating Temperature 充电 Charge:-20°C~ 60°C 放电 Discharge:-30°C~60°C 5.1.12 应用海拔 Operating Altitude <5000m 5.1.13 储存环境要求 Storage Requirements 温度 Temperature:-30°C~ 60°C 无凝露, No condensation

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Source datasheet (access rules apply)

工作环境放电及绝对范围均-30~60℃,相邻充电温度非放电边界。

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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-009 版本:V1.0 生效日期:2025 年 9 月 28 日 LFR40135LE1-20Ah-N 第 7页共 22页 5. 产品规格 Specification 5.1 技术参数 Technical Parameters No. 项目 Item 规格要求 Specification Requirements 5.1.1 额定容量 Nominal Capacity ≥20.0Ah RT@1/2C ,25℃ 5.1.2 标称电压 Standard Voltage 3.20V 5.1.3 标准充电 Standard Charge 0.5C CC to 3.65V, Cutoff 0.05C 5.1.4 标准放电 Standard Discharge 0.5C 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 电芯内阻(20%SOC@25℃) Internal Resistance ACR: ≤1.5mΩ DCR: ≤4.8mΩ @ 3C&10S 5.1.8 电芯重量 Weight 365±10g(含膜) 5.1.9 能量密度 Energy Density ≥170Wh/kg,≥375Wh/L RT@0.33C Discharge 5.1.10 月自放电 Residual capacity ≤3.5% 25℃,新电池 3 个月后 Fresh after 3month 5.1.11 工作环境温度 Operating Temperature 充电 Charge:-20℃~ 60℃ 放电 Discharge:-30℃~60℃ 5.1.12 应用海拔 Operating Altitude <5000m 5.1.13 储存环境要求 Storage Requirements 温度 Temperature:-30℃~ 60℃ 无凝露, No condensation

Source datasheet (access rules apply)
Internal resistance
≤1.5 mΩ · AC; ≤4.8 mΩ · DC
Conditions & source

ACR: ≤1.5mΩ DCR: ≤4.8mΩ @ 3C&10S

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Source datasheet (access rules apply)

DCR: ≤4.8mΩ @ 3C&10S

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

5.1.8 电芯重量 Weight 365±10g(含膜)

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

25±2℃、0.5C恒流恒压充至3.65V/截止0.05C、0.5C放电至2.5V,各静置30min,至额定容量80%;45℃1000次另列。

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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-009 版本:V1.0 生效日期:2025 年 9 月 28 日 LFR40135LE1-20Ah-N 第 10页共 22页 100% 0.3C 0.5C 1.0C 1.0C 1.0C 1.2C 1.5C 2.0C 2.0C 1.0C 0.5C 0.3C 90% 0.3C 0.5C 1.0C 1.0C 1.0C 1.2C 1.5C 2.0C 2.0C 1.0C 0.5C 0.3C 80% 0.3C 0.5C 1.0C 1.0C 1.0C 1.2C 1.5C 2.0C 2.0C 1.0C 0.5C 0.3C 70% 0.3C 0.5C 1.0C 1.0C 1.0C 1.2C 1.5C 2.0C 2.0C 1.0C 0.5C 0.3C 60% 0.3C 0.5C 1.0C 1.0C 1.0C 1.2C 1.5C 2.0C 2.0C 1.0C 0.5C 0.3C 50% 0.3C 0.5C 1.0C 0.8C 0.8C 1.0C 1.5C 2.0C 2.0C 1.0C 0.5C 0.3C 40% 0.3C 0.4C 0.7C 0.8C 0.8C 1.0C 1.2C 2.0C 2.0C 1.0C 0.5C 0.3C 30% 0.2C 0.25C 0.5C 0.8C 0.8C 0.8C 1.0C 1.5C 1.5C 1.0C 0.5C 0.3C 20% 0.1C 0.25C 0.5C 0.5C 0.5C 0.5C 0.7C 1.0C 1.5C 1.0C 0.5C 0.3C 10% 0.1C 0.1C 0.5C 0.5C 0.5C 0.5C 0.5C 1.0C 1.0C 1.0C 0.5C 0.3C 5% 0.1C 0.1C 0.5C 0.5C 0.5C 0.5C 0.5C 0.5C 0.5C 0.5C 0.5C 0.3C 截止电 压 2.0V(含 0℃) 2.5V 6. 常规性能 General Performance 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,再以 3.65V 恒压充电至电流 0.05C,搁置 30 分钟,再用 0.5C 电流放电 至 2.5V;又搁置 30 分钟,重复以上步骤,直到放电容量是 额定容量的 80%。 The ambient temperature is RT, Charge the cell with 0.5C to 3.65V, then charge at constant voltage until the current drops to 0.05C, rest 30min, then discharged at a current rate of 0.5C to 2.5V, rest 30min.Repeat above steps until discharging capacity lower than 80% of the rated capacity of the cells. ≥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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