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EBattery 45 Ah Technical Specification, Cell Version 1.4 Technical Specification: EBattery 45 Ah Lithium-Ion Cell Version 1.4 If not otherwise informed, the charging method is constant current / constant voltage: using C/2 (22.5 A) current with 3.55 V voltage limit and end-condition current 0.03C (1.35 A). Discharge cut-off voltage is 2.5 V. No ITEM VALUE REMARK 1 Rated capacity 45 Ah Discharge at C/3 (15A) At 25 ± 2oC 2 Energy density 145 Wh/kg At C/3 (15 A) discharge at 25 ± 2oC 3 Nominal voltage 3.20 V At C/3 (15 A) discharge at 25 ± 2oCRecommended discharge voltage limit 2.50 V Cell can be discharged to 2.0 V without permanent decrease of performance. Recommended charge voltage limit 3.55 V When applying > C/2 charge currents 3.50 V voltage limit is recommended. 4 Recommended maximum continuous charge current 45 A Temperature > 23oC and 3.50 V upper voltage limit. For requirement for higher charging current contact European Batteries. 5 Maximum continuous discharge current 180 A For requirement for higher discharge currents contact European Batteries. 6 Operating temperature Charge: 0 - 60oC High current charging should be avoided in low temperatures. Optimal operating temperature is 20 - 35oC. Discharge: -25 - 60oC The cell performance is decreased in low temperatures. Optimal operating temperature is 20 - 35oC. 7 Storage temperature -30 - 45oC: 3 years Optimal storage temperature is 10 - 30oC. Storing the cell in elevated temperatures will decrease the performance permanently. 45 - 55oC: 1 year 55 - 60oC: 3 months8 Weight 1 000 ± 10 g 9 Dimensions Width 170 ± 1 mmHeight 275 ± 1 mm Without terminals/tabs. Thickness 13.5 ± 1 mm10 Internal Impedance < 2.0 mO Measured by 10 A AC current (1000 Hz) at 25 ± 2oC 11 Electrochemical system Positive: Lithium Iron Phosphate (LiFePO4), negative: graphite Figure 1. EB 45Ah LFP cell.
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