Falcon+ Home UPS can be used with any battery.
This option is only available in Su-Kam Falcon+ so that you can choose battery size according
to your backup need. Usually different inverters have different charging current fixed like
10amp or 12amp and we cannot fix a battery of small AH in these inverters but it is very
important to know what is AH. Ah means ampere hour which is the measurement of the battery
capacity. In easy language, AH is the indication of how much energy can be stored in this battery.
In order to store energy in the battery, we need to charge the battery at a fixed ampere
which is called charging current. For example if your inverter needs to charge a 150 AH
battery, then it will need 15 amp charging current. To find out how much ampere is required
to charge the battery, there is a simple formula – C/10 where C is capacity of battery and
10 is the charging time. If we divide the battery capacity by 10, then we will get the
charging current of the battery which is 15 amp. In simple words, the maximum charging
ampere of a battery is 10% of its AH value. If the battery is charged more than this,
then the battery will keep getting overcharged and in few months, it will get spoiled. As
we can see here, to charge a 150 AH battery, we require a 15 amp charging current. It will
take 10 hours to charge a 150AH battery at 15 amp and if we charge it at 10 amp, then
the battery charging will become slow and the battery will get fully charged in 15 hours.
If the 150AH battery will discharge at 10 amp, then it will run the load for 15 hours
and if it is discharging at 15amp, then it will run the load for 10 hours. The customers
who need 10 to 15 mins backup time, if they take a big battery, then it will just cost
them money which will be a waste. For a backup time of 10 to 15 mins, usually 30AH battery
is required but in normal inverters due to the fixed charging current of 10 amp, the
customer ends up buying a 100 AH battery. At the back panel of Falcon+, there is a dip-switch
provided. There are four different setting of ampere in this dip-switch like 2.5 A, 5A,
10A and 15 A. If you want a backup time of only 10 to 15 mins, then you can easily connect
a 30AH battery with Falcon+. For this, you will need maximum 2.5A current. We can set
the switch to 2.5A with which a 30AH battery can be easily charged. 2.5 A setting can be
done by moving the dip-switch on the left but if you want more backup time, then you
can get a 50 AH battery. 5 amp charging current is required to charge a 50 AH battery. Its
setting can be done by moving switch 2 on the left. If someone wants more backup time
for their house, they can use 120 AH battery and to install this, 10 amp charging current
is required. This can be done by changing the position of Falcon+ dip-switch 3 to left.
For more backup time, you can install a 200AH battery with Falcon+ which will require 15amp
charging current. The setting for this can be done by moving the dip-switch 1,2 and 3
towards right. The default charging current setting is set to 15 amp in Falcon+. There
are many such features in Falcon+ that can help you to save money and one such feature
is Variable current charging.