Published record

LFP / LiFePO₄Cylindrical

DFD LFR40135

Name: DFD LFR40135
Brand: DFD

DFD LFR40135: 20Ah, 3.2V LFP cylindrical battery cell. Dimensions Ø40.2 × 135.1 mm, weight 370g, cycle life 4,000 cycles.

Capacity

20Ah

Chemistry

LFP / LiFePO₄

Format

Cylindrical

Weight

370g

View datasheets (1)Ask about this model

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

ModelLFR40135

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)173 Wh/kg

Volumetric energy density (calculated)373 Wh/L

Max continuous charge

≤40 A

Conditions & source

由规格书额定容量 20 Ah × 原文 2.0C 换算。最大持续充电电流 Max. Continuous Charge Current 2.0C 25±2°C, ≤30%SOC

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Original excerpt

最大持续充电电流 Max. Continuous Charge Current 2.0C 25±2°C, ≤30%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

100 A / 30 s

Conditions & source

由规格书额定容量 20 Ah × 原文 5C 换算。最大脉冲放电电流 Maximum Pulse Discharging Current 5C 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 5C 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 ℃

Conditions & source

nth 5.1.11 工作环境温度 Operating Temperature 充电 Charge:-20°C~ 60°C 放电 Discharge:-40°C~65°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~ 55°C (<1 月) 温度 Temperature:-10°C~ 45°C (<

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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

370 g

Conditions & source

5.1.8 电芯重量 Weight 370±10g(含膜)

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Source datasheet (access rules apply)

Cycle life

≥4,000 cycles · EOL 80%

Conditions & source

25±2℃、0.5C恒流恒压至3.65V/截止0.05C、0.5C放至2.5V，各静置30min，至额定80%；阶梯充电及45℃工况另列，不混用。

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Original excerpt

多氟多新能源科技有限公司 Do-Fluoride New Energy Technology Co., Ltd. 编号：DFD-03-G-TD-003 版本：V1.0 生效日期：2025 年 9 月 28 日 LFR40135-20Ah 第 10页共 22页 Temp. soc -30℃~ -20℃ -20℃ ~ -10℃ -10℃ ~ 0℃ 0℃~ 5℃ 5℃~ 10℃ 10℃~ 15℃ 15℃~ 20℃ 20℃~ 25℃ 25℃~ 45℃ 45℃~ 50℃ 50℃~ 55℃ 55℃~ 60℃ 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. ≥4000Cycles

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.