CORNEX RF39
CORNEX RF39: 21Ah, 3.2V LFP prismatic battery cell. Dimensions Ø40.5 × 139.6 mm, weight 380g, cycle life 2,000 cycles.
Capacity
21Ah
Chemistry
LFP / LiFePO₄
Format
Prismatic
Weight
380g
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
由规格书额定容量 21 Ah × 原文 1.5C 换算。 最大脉冲充电电流 Maximum pulse charging current 1.5C RT,50%SOC,10S
Source version: H · Page 5
Original excerpt
最大脉冲充电电流 Maximum pulse charging current 1.5C RT,50%SOC,10S
Conditions & source
由规格书额定容量 21 Ah × 原文 3C 换算。 最大脉冲放电电流 Maximum pulse discharge current 3C RT,50% SOC,10s
Source version: H · Page 5
Original excerpt
最大脉冲放电电流 Maximum pulse discharge current 3C RT,50% SOC,10s
Conditions & source
rge current 3C RT,50% SOC,10s 2.13 工作温度(充电) Operating Temp. (charge) 0-55°C N.A.2.14 工作温度(放电) Operating Temp (discharge) -30-55°C N.A.2.15 持续工作最适温度 Continuous operating Temp 10-35°C 在这个条件下工作的电池能确保其设计性能 Ensure its design pe
Source version: H · Page 5
Source datasheet (access rules apply)ing Temp. (charge) 0-55°C N.A.2.14 工作温度(放电) Operating Temp (discharge) -30-55°C N.A.2.15 持续工作最适温度 Continuous operating Temp 10-35°C 在这个条件下工作的电池能确保其设计性能 Ensure its design performance under this condition.2.16 存储温度 Storage T
Source version: H · Page 5
Source datasheet (access rules apply)Conditions & source
2.6 电池内阻 Impedance (1KHz) ≤2.0 mΩ 新电池 20%SOC Fresh cell 20%SOC
Source version: H · Page 4
Source datasheet (access rules apply)Conditions & source
ROH, no condensation.2.17 电池重量 Cell Weight 0.3800±0.0200 kg N.A.2.18.1 电池尺寸 Typical dimensions(含保护膜 Including protective film) 直径 Diameter: 40.50±0.30 mm 肩高 Shoulder height : 137.30 ±
Source version: H · Page 5
Source datasheet (access rules apply)Conditions & source
2.21 90%DOD 循环寿命 90%DOD Cycle life ≥2000 cycles 在 25°C±2°C 条件下, 0.5C/1C , 90%DOD 循环,容量保持率≥70% 25°C±2°C, 0.5C/1C , 90% DOD cycle, capacity retention ≥70% 2.22 25°C满电存储 25°C fully charged storage 荷电保持率≥94% 初始容量 Capacity retention≥94% initial capacity 容量恢复率≥95% 初始容量 Capacity recovery≥95% initial capacity 在 25°C±2°C条件下,参照 3.1 标准充电至 100%SOC 存 28 天 25°C±2°C,reference to paragraph
Source version: H · Page 6
Source datasheet (access rules apply)Not provided: Voltage range, Max continuous charge, Max continuous discharge.
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.