The FKB 18650-26 is a Li-Ion cell without built-in protection circuits, featuring a flat positive terminal and lamella blades. It is intended for professional electronics and battery-pack assembly by trained personnel — not for direct consumer use.

The cell supports up to 500 charge/discharge cycles using a constant-current/constant-voltage charging method. A matching lithium-ion charger must be used; soldering on the poles is strictly prohibited, and the cell must not be short-circuited or exposed to fire.

Key Features

• 18650 cylindrical format with flat positive terminal and lamella blades
• 3.6V nominal voltage with 2600mAh capacity
• No built-in protection circuit — designed for professional pack assembly
• Constant Current / Constant Voltage (CC/CV) charging system
• Up to 500 charge/discharge cycles

Product Benefits

• Superior weight-to-power ratio versus NiMH or NiCd alternatives
• Lamella terminals allow integration into custom battery pack configurations
• 500-cycle durability reduces replacement frequency in professional equipment
• Standard 18650 format is compatible with a wide range of professional holders and housings
• CC/CV charging acceptance enables precise, safe recharging with compatible chargers

Technical Specifications

• Model: FKB 18650-26
• Technology: Lithium-ion (Li-Ion)
• Format: 18650
• Nominal Voltage: 3.6V
• Capacity: 2600mAh
• Terminal Layout: 51
• Terminals: Lamellae
• Charging Voltage: 4.2V
• Standard Charging Current: 1300mA (approx. 2 hours)
• Max. Discharge Current: 5200mA
• Charging System: Constant Current / Constant Voltage
• Cycle Life: 500 cycles
• Dimensions: 65×18.4mm
• Unit Weight: 45.00g
• Operating Temperature: -10 / +60°C
• Intended Use: Professional electronics

Why You'll Love It

• Standard 18650 form factor fits professional holders without modification
• Lamella blade terminals simplify spot-welding into multi-cell packs by certified operators
• Clear +/- polarity and flat top terminal reduce assembly errors
• Package includes 1× FKB 18650-26 rechargeable lithium battery 3.6V/2600mAh