Efest Slim K2 Intelligent USB Battery Charger Keychain Double-layered bottom for long-haul durability

Double-layered bottom for long-haul durability

Combine this with the snag-free profile of the brass component and accidental disengagement is "virtually" impossible

5 hr 50 m (164 ft) Low Constant 5 lm 16 hr – High Flash Fast 15 lm 35 hr – High Flash Slow 15 lm 25 hr – Low Flash Fast 5 lm 120 hr – Low Flash Slow 5 lm 80 hr –

monitors and auto-adjusts output levels in real-time to keep LED and crucial component safe for the best balance of performance and equipment safety

• Battery: 3x 18650 ( Do not use CR123A or 16340 batteries)

Efest Slim K2 Intelligent USB Battery Charger Keychain Double-layered bottom for long-haul durabilityThe Efest Slim K2 is a professional portable two slot Li ion batter charge with a Micro USB charging port. Compatible Li ion batteries: 20700 18650 18350 16340 10440 26650 18500 17340 14500 26500 Features: Fast charging mode: 1. 0A Fits various 3. 6V and 3. 7V Li ion batteries Reverse polarity protection Activation function Auto detect charging function Over chargind protection Short circuit protection CE and RoHS certified High Quality Spring: Spring