Premiertek Smart Fast Ni-MH Ni-Cd AA/AAA 4-Channel Battery Rapid Charger: * Charges in 1-3 hours * Charges up to 4 batteries at once * Over current and short circuit protection * Defective and non-chargeable battery detection * Reverse polarity protection * Time control protection * Tickle charge to maintain battery charge * Battery rescue function * LED indicators * Includes 32" power cord