- Fenix 18650 rechargeable lithium-ion battery, designed for LED flashlights and high-consumption electronic devices - 3500 mAh capacity provides longer runtime and energy efficiency - Advanced protection circuit prevents short circuits, overcharging, over-discharging, and overheating - Pressure venting system to prevent explosions and increase safety - Compatible with micro USB or USB-C charging (depending on model), making recharging easy anywhere - Guarantees up to 500 charge cycles with at least 75% of the initial capacity - Voltage of 3.6 V, recommended charging current of 1 A and maximum of 2 A - Approximate weight of 50 g, standard dimensions: 69 mm in length and 18.6 mm in diameter - LED charge status indicator for added convenience - Eco-friendly and economical alternative to disposable batteries, helping to reduce waste - Ideal for users seeking reliability, safety, and high performance in their electronic devices