Euro Manufacturing and Marketing Limited
UK Manufacturers of Electronic Products for the Automotive Industry
E848 1Amp 12V-12V DC-DC Battery Charger
This Top-Up Charger was designed for use in motor homes, canal boats etc fitted with either solar or mains charging systems. It transfers charge from the leisure battery to the engine battery.
If whilst the leisure battery is being charged it reaches a voltage 0.4V greater than the engine battery, then the Top-Up Charger transfers charge from the leisure battery to the engine battery until the voltage difference is 0.2V, it then terminates the transfer.
If the engine battery has a constant drain such as Security Systems, Clocks, Hi-Fi Equipment, etc and its voltage drops 0.4V below the leisure battery, then the Top-Up Charger will transfer charge from the leisure battery to the engine battery.
The Top-Up Charger is able to cope with a discharge of up to 1A and will limit the transfer to protect itself.
The LED Charge indicator shows four charge states.
1. OFF: No charge transfer
2. ON “Bright”: Normal charge transfer
3. Flashing: Engine battery fully charged
4. ON “Dim”: Charge transfer in progress, engine battery low or leisure battery high
This Top-
If whilst the leisure battery is being charged it reaches a voltage 0.4V greater than the engine battery, then the Top-
If the engine battery has a constant drain such as Security Systems, Clocks, Hi-
The Top-
The LED Charge indicator shows four charge states.
1. OFF: No charge transfer
2. ON “Bright”: Normal charge transfer
3. Flashing: Engine battery fully charged
4. ON “Dim”: Charge transfer in progress, engine battery low or leisure battery high
Part Number
E848
Description
12V 1Amp Battery Charger
Leisure Battery
12V Lead Acid
Engine Battery
12V Lead Acid
Charge Transfer Rate (I out),
Leisure to Engine battery
Leisure to Engine battery
1.1A < I out < 1.6A
Total Quiescent Current, LED ON
6mA Typical
Leisure Battery Current Drain, LED OFF
2.6mA Typical
Engine Battery Current Drain, LED OFF
0.3mA Typical
Voltage Drop, Leisure to Engine Battery @ 1A
0.58V Typical
Case Style
Flat Pack, Fully Encapsulated
Dimensions
97 x 81 x 21 mm
Fixing
2 Point Fixing – 5mm Holes (65mm fixing centres)
Weight
140g
