UltraFire 3.7V Battery Charger for 18650 14500 17500 18500 17670

Pros:Great charger for Li-Ion cells. Iam using it for charge 18650 cells for my flashlight. Charging doesnt too long, about 6hours for pair of 2400mAh 18650. Charging current is ~0,38A CONSTANT CURRENT per channel. My unit tops cell to 4,22V and stop charging. After few minutes on cells is 4,20V. Leds are blinking during charging that means charger is original UltraFire and use proper charge method (measure voltage every blink). Open circuit voltage is about 5,30V.

Cons:Not good for protected cells.

Bottomline:For the price, this charger is the best option for li-ion cells. Really happu with this purchase.