
Gotion High-tech IFR37146-20Ah
Gotion IFR37146-20Ah cylindrical LFP cell. Shell diameter 37 mm (0/-0.4); weld-zone maximum envelope 37.2 mm (0/-0.4); total height 152 +/-0.3 mm; shoulder height 146.7 +/-0.2 mm; weight 351 +/-5 g. Normal voltage window 2.0-3.65 V; 1.8 V applies at <=0 C only. Source states 1,200 room-temperature cycles to 80% retention, but Chinese and English discharge rates conflict (1C versus 0.5C), so cycle-life field is left unspecified. Supplied PDF has 22 pages although its header says 24; the original is preserved as supplied.
Capacity
20Ah
Chemistry
LFP / LiFePO₄
Format
Cylindrical
Weight
351g
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.
Conditions & source
Maximum continuous charging current 20A 25°C±2°C
Source version: S1 (22-page supplied copy) · Page 6
Source datasheet (access rules apply)Conditions & source
m working temperature 10~35°C 2.3.2 充电温度范围 Charge temperature range -20~55°C 充电电流,见附件 A.1 Charging current, see appendix A.1 2.3.3 放电温度范围 Discharge temperature range -30~60°C 最高电芯温度≤60°C The highest cell temper
Source version: S1 (22-page supplied copy) · Page 7
Source datasheet (access rules apply)放电温度-30~60℃,电芯温度不超过60℃;DCR矩阵采样点不作边界。
Source version: S1 (22-page supplied copy) · Page 7
Original excerpt
合肥国轩高科动力能源有限公司 HEFEI GOTION HIGH-TECH POWER ENERGY Co .,Ltd 编 号 Q/GX 023-2025 标题: Title: IFR37146-20Ah 锂离子电池产品规格书 第 7 Product Specification for IFR37146-20Ah Lithium ion rechargeable cell 页 共 24 页 2.1.14 最低放电电压 Lower limit discharging voltage 1.8V 2.2 推荐充电规范 Recommended charge specification 项目 Items 参数 Specification 条件/注释 Condition/Notes 2.2.1 常规充电(慢充) Regular charge(Slow charge) 4A 3.65V 1A 10℃≤T<45℃ 恒流 Constant current 恒压 Constant voltage 截 止 条 件 ( 终 止 )Cut off condition(Termination) 温度 temperature 2.3 工作温度范围 Working temperature range 项目 Items 参数 Specification 条件/注释 Condition/Notes 2.3.1 最佳工作温度 Optimum working temperature 10~35℃ 2.3.2 充电温度范围 Charge temperature range -20~55℃ 充电电流,见附件 A.1 Charging current, see appendix A.1 2.3.3 放电温度范围 Discharge temperature range -30~60℃ 最高电芯温度≤60℃ The highest cell temperature ≤ 60℃ 3.外观尺寸 Appearance and Dimension 3.1 外观 Appearance 电池外表面无明显的划痕、裂痕、生锈、变色或电解液泄漏,无影响电池正常使用的其它外观缺陷。 Without scratches, cracks, stains, discoloration or electrolyte leakage, no other appearance defects affecting cell normal operation. 3.2 尺寸 Dimension 项目 Items 尺寸 Dimension 壳体直径 Shell Diameter (370-0.4)mm(含外包膜 Including covering envelop) 焊接区直径 Weld Zone Diameter (37.2 0-0.4)mm(含外包膜 Including covering envelop) 肩高 Shoulder Height 146.7± 0.2mm(含外包膜 Including covering envelop) 总高 Total Height 152± 0.3mm 4.性能测试规范 Performance specification 4.1 标准测试条件 Standard testing condition 4.1.1 单体电池充电 Single cell charge 室温下(25℃±2℃),单体电池以 10A 电流充电至电压为 3.65V,转恒压充电,至充电电流降至 1A 时 停止充电,充电后静置 30min。 At (25℃±2℃), single cell is charged at 10A to 3.65V , followed by constant voltage charge until current drops down to 1A, stand for 30 min.
Conditions & source
2.1.5 交流内阻 AC Resistance 1.0mΩ≤R≤3.0mΩ 25°C±2°C
Source version: S1 (22-page supplied copy) · Page 6
Source datasheet (access rules apply)2.1.6 直流内阻 DC Resistance <8mΩ 50%SOC,25°C±2°C
Source version: S1 (22-page supplied copy) · Page 6
Source datasheet (access rules apply)Not provided: Max pulse charge, Max pulse discharge, Cycle life.
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
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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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