B. Battery Type Selection
AGM/GEL
: Sealed type (VRLA) , AGM-GEL , Maintenance Free , Automotive or Deep Cycle lead acid batteries
WET
: Flooded Type lead acid batteries (to which water can be added) Automotive or Deep Cycle
Calcium-Calcium : Sealed type (VRLA) Lead Acid batteries with Calcium content Automotive or Deep Cycle
B1. FLOAT VOLTAGE SELECTION
These fine tuned selections of float voltages enable the best voltage level for maximum battery life. Choose 27.6V when in doubt
or in Power Supply Mode.
Follow the markings on Deep Cycle batteries of the Standby float voltage.
B2. Recommended Battery Capacity
The following minimum AH capacities are a generalized suggestion, some batteries can take higher charge current, check with
battery manufacturers for charging batteries with smaller capacity.
Charger Model
FUM
-2
4
05 , 5A
FUM
-2
4
07 , 7.5A
FUM
-2
4
10 , 10A
Battery Capacity
20 AH - 50 AH
30 AH - 80 AH
40 AH - 100 AH
C. Battery Charger Installation and Connection
Observe the warnings & safety precautions before rushing to install and operate the charger.
Check battery condition, fill up cells for wet battery, clean battery poles.
Secure the battery charger in a well ventilated place, make sure the mounting surface is flat and without soft covering material or
loose paper sheet. The air intake is at the bottom and air outlet at the back. Make sure both intake and outlet are not blocked.
Never place charger on top of battery.
Plug in the AC mains and turn on Power Switch , the Charger On LED and the Float LED should be on green indicating Charger is
in good order for charging lead acid battery.
Before connecting or disconnecting the charging cable, turn off the Power Switch and unplug AC cord from the mains.
First connect the Red cable to Po terminal of charger and the battery Po Pole. Then connect the Black cable to the
Negative – terminal and the Negative – Pole of the battery.
Make sure all the connections are secured and well tighten up, double check on the correct polarity.
Double check again for correct selection of Slide Switch 1 at Charger Mode, Switch 2 for Battery type and Switch 3 for Float
Voltage setting value.
D. Normal 3 Stage (IUoU) Charging Operation
The 3 stage IU0U charge algorithm ensures fast , complete and at the same time gentle charging of the lead acid battery.
Fig.2