The +++ compared to other brands (known or unknown) in the majority of universal chargers, batteries recharge in pairs. Here you can recharge a single battery if necessary. It looks like a detail but here, many devices have an odd number of batteries. With the 2 preceding chargers (who also made the soul), we had to wait for another device has batteries odd number need to be recharged or have rechargeable batteries in reserve.
Therefore this possibility to recharge a single battery seems more interesting.
Warning: bcp charger too big for travel.
Update 2 1/2 years later: the charger is really strong! It still works (and we often use, tuned between baby and toys, etc ...). Previous 2 chargers had barely exceeded the year of use!
