Compared to lithium-ion or lithium-polymer batteries, LiFePO4 batteries provide an alternative when high discharge currents, short charging times, and high cycle stability are required, albeit with slightly lower energy density. The IFR 18500J lithium iron phosphate battery (LiFePO4, flat top) is characterized by high safety due to its solid electrolyte and cell chemistry, which makes LiFePO4 cells intrinsically safe.

Applications include solar lights, industry, model building, and diving lamps. Suitable chargers are XTAR SP1, XTAR WP2H, XTAR VP2, and Nitecore D4.

Specifications:

• Capacity: 1200 mAh
• Minimum capacity: 1100 mAh
• Nominal voltage: 3.2 V
• Charge end voltage: 3.6 V ± 0.05 V
• Charge voltage: 2.0 V
• Discharge current (constant): 3C/3300 mA
• Discharge current (pulse): 5C/5.5 A
• Positive terminal (design): Flat top
• Protection electronics: None
• Composition (chemistry): LiFePO4
• Diameter: 18.15 mm ± 0.1 mm
• Height: 49.00 mm ± 0.2 mm
• Weight: 30 g ± 1 g
• Charging method: CC-CV

Safety instructions: Lithium cells should only be operated with protection electronics. Please note that lithium cells may only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.

Additional features: Lithium iron phosphate batteries are thermally stable and do not suffer from the memory effect. They operate on the basis of lithium and are characterized by high energy density.

Technical data for "IFR 18500 - 1200 mAh 3.2 V LiFePO4 battery (flat top) unprotected":

• Charge current (normal): 0.5C 550 mA 2h
• Charge current (fast): 1C 1000 mA 1.5h
• Operating temperature (charging): 0 °C - 45 °C
• Operating temperature (discharging): -20 °C - 60 °C.