Its interest is the possibility to charge two different battery models simultaneously. To know the% charge on a battery among the whole, you simply have to make a brief disconnect of this battery to see its level, the same for the others.

Son intérêt est la possibilité de charger simultanément 2 modèles de batteries différentes. Pour connaître le % de charge sur une batterie parmis l'ensemble il faut simplement faire une brève déconnexion de cette batterie pour visualiser son niveau, pareil pour les autres.

Its interest is the possibility to charge two different battery models simultaneously. To know the% charge on a battery among the whole, you simply have to make a brief disconnect of this battery to see its level, the same for the others.