12 Volt Charger, EPS2512 will Charge up 300Ah.  Top quality.

EPS 12Volt 25Amp Dual Output Switch Mode Battery Charger
The EPS 1225 has two outputs to charge batteries, a switch for mute function and a switch field for the selection of the charging voltage and timer function. It also has an optional connection for remote control and temperature sensor as optional accessories.
This sophisticated switch mode charger has been specially developed for used with all deep-cycle, sealed lead-acid, calcium lead and automotive/marine batteries including immobilized gel electrolyte batteries. It is light weight, compact and efficiency and it will automatically operate on any AC input voltage between 207 VAC to 253 VAC.
It automatically charges, without requiring monitoring, all deep cycle, sealed lead acid, calcium lead, automotive/marine type and gel type batteries with a nominal voltage of 12 volts and up to 110 Ah. Charging begins immediate if the battery has been property connected. The output of the charger is electronically protected against short circuit and extremely deeply discharged batteries.
It has two out banks so you can charge two batteries simultaneously. We also have triple output version of industrial battery charger model.
Charging characteristics
The charging characteristics is generally designed as a modified IUOU characteristicn I Phase
At the beginning of the charging process, the empty battery is charged with constant current until the battery voltage reaches 13.8 V or 27.6 V. When the battery reaches this voltage level, the charging current slowly drops. With the drop of the current to the 80 % mark, the charger switches over to the higher charging voltage 14.3 V/14.7V or 28.6V/29.4V.
UO Phase
Here the time registration starts which limits the main charging phase (UO phase) to a maximum of 4/8 hours. With the switching over of the charging voltage, the current rises to its maximum value. Now it remains constant as long as the battery voltage is below 14.3V/14.7V or 28.6V/29.4V. After reaching the maximum voltage, the current drops again. Thereby the voltage remains constant(UO). Within this main charging phase, which is limited to 4/8 hours, the battery is fully charged.
U Phase
If the current decreases to 10 % of the rated or if the time limit of 4/8 hours is exceeded, then the charger switch over to economy charging 13.8V or 27.6V
Twin battery charger
Fitted with boost phase time out timer to avoid excessive battery gassing
Overheating and short circuit protection
Fan ventilation
LED charging display
Switch for mute function
Switch field for the selection of the charging voltage and timer function
For motor homes, on sailing yachts, ambulance and emergency vehicles
Electrical Characteristics
Input    207 - 260 VAC
Frequency    50 - 60 Hz
Protection    Internal Primary, Inrush limiting
Boost charge voltage    14.4V / 14.8V
Float charge voltage    13.8 V
Output charge current    25 Amps
Battery connections    two
Max battery capacity    300 Ah
Topology    Switching shutdown
Efficiency    90 %
Short circuit protection    Output shutdown
Over current protection    Secondary current limited
Reverse polarity protection    Internal fuse
Fuse    T4A / 250 V
UO phase limitation
4 hour or 8 hour
Mechanical Characteristics
Case dimensions    310 L x 240 W x 77 H mm
Casing materials    Extruded anodized aluminium
Weight    3.5 kg
Cooling    Fan cooled
Environmental
Operating temperature range    -5 °C to 50 °C
Storage temperature    - 30 °C to +85 °C
Relative humidity    10 % to 90 % non condensing
Altitude    0 - 3000 m
Quality and Safety
Designed to IEC 950
EMI-EMC - FCC Class B, CE,C-Tick
Standard AS 3193
Input connection - 3 core SAA cable IEC