WindFire&reg; BC10 Single Slot Battery Charger Universal Intelligent Battery Charger for 18650/18500/14500/26650 Lithium Battery Lifepo4 Battery USA Plug Black Single Slot intelligent charger LED indication.Indicator light : Red flashing (charging )--Green (finish charge) . Automatic identification and transformation, for all sorts of all kinds of 3.0/3.2/3.6/3.7 V lithium ion batteries, lithium iron phosphate batteries charging,filled automatically stops charging. Comprehensive protection function, short circuit is not charging when battery put wrong,eliminate to charging the common battery With 1 slot only, charge 1pcs Li-ion cylindrical battery.