A compact charger for 9V batteries? I thought it did not exist and had to get a bulky charger with the ability to recharge other types of batteries. But no! there is one that works very well and correctly, in addition, is not too expensive. Only quack, very short documentation clearly not regard this charger but another model. That said, how important as the use is very simple. Just a tip, monitor the charging time because I feel that the LED light does not turn off when the battery is charged.
