Victron Energy Skylla-TG Series Battery Charger 24V 50A 3 Phase.

One full rated output and one 4 Amp output. Charge voltage can be accurately adjusted to suit any battery system. The input for the charger is 320-450V AC / 45-65 Hz. Charge voltage can be measured directly on the battery terminals in order to compensate for voltage loss due to cable resistance. An external sensor allows measuring battery temperature and compensating charge voltage accordingly.

Specifications:
MODEL: TG 24/50 3 Phase
INPUT VOLTAGE RANGE: 320-450V AC / 45-65 Hz
CHARGE VOLTAGE ABSORPTION: 28.5 VDC
CHARGE CURRENT: 50 A + 4 A
BATTERIES AH: 250/500
WEIGHT kg (lbs): 13 (28.7)
SIZE: 365x250x257 mm (14.4x9.9x10.1 inches).