# How to Size Battery with Inverter: Freedom to Choose Battery size

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.

## 38 thoughts on “How to Size Battery with Inverter: Freedom to Choose Battery size”

1. power life says:

battery 240 Am

2. power life says:

how to make a solar 150 k 3 ha paless help me

3. power life says:

Good nicely

4. power life says:

I,m Pakistani ho

5. Sachin Malik says:

i have 180 ah battery , i am planning to buy sukam inverter because i have been using sukam chic 800 va model from 2003, but now i want to increase capacity, so i want to switch to 1600va inverter, but dealer said i have to connect 2 batteries for that.. they should be new as well , i don't understand on the one side you are saying it can use any battery , on the other side installer your dealers denying it.. what should i do.. ?

6. Anil Kumar says:

Hi team
I have 500 va inverter I want increase the backup can I connect 12 v 150 ah battery plz suggest me.

7. darshan shille says:

hi, su kam u seem interesting to me, can u pls tell me whether I run a 600 watt freezer on battery☺

8. HIMANSHU SEKHAR says:

can i connect this inverter with 42ah smf battery or 35ah car battery???

9. Bidyut Borah says:

I have been using the 900VA version with a 150Ahr battery. I am very satisfied with the performance. Could you please give me some idea regarding the temperature sensor probe and how boost works.

10. md ikramoddin says:

medum bettry ka price ketna hai bata sakte kya

12v invetur bana na muje malum hai

11. naved khan says:

Owsome video

12. Nasiruddin Nasir says:

30 ampiyae ki liye charjink kitna chai

13. 0551531679 0551531679 says:

price kitna

14. 0551531679 0551531679 says:

how money price 1000va power inverter.

15. Ramtharnghaki Ralte says:

sukam falcon and falcon plus float charge voltage too high 13.85 volt my new exide battery 150 ah tubular boiling sound and bubble out. how to lower float charge voltage

16. Umar najam says:

agr ek battery 90 amp ki ha or 7 amp sy discharge ho rhe ha to yo ktny time tk load ko chlay gi,, plz formula b btaya ga or value put kr k b btaya ga plz,,

17. SALim Azmi says:

पैसा खर्च भी बताती तो अच्छा था,देख के वीडियो फौरन आदमी लेने के बारे में सोचता,फिर बाद में भूल जाता ये सोच कर की ना जाने क्या खर्च आएगा

18. SALim Azmi says:

आज़मगढ़ यूपी 7309400560

19. Liaquat Lichue says:

hi 1000mah inverter se 250v battery thik chalega ya nahi reply plz

20. ACMARTBD says:

Hello, I am interested to buy su-kam brainy eco 1100VA UPS. But I have some queries.
1. I already have 100+50+40=190W solar panel.
2. Battery: 100+55+30=185A Battery.

If I connect those 3 panel in parallel and those 3 battery in parallel to use in su-kam brainy eco 1100va, is it work properly. or I have to change something. Plz Advise me.

21. manmohan rawal says:

Muje abhi kuch time ke liye panal nahi lene but soler inverter or soler bettery use karna he… To kya ye normal inverter se ye best rahega grid ke liye

22. saurav kumar says:

150 AH BATTERY+900 VA INVERTER EK 70 AUR 50 WATT KE FANS KO KITNEE DER TAK CHALA PAYEGA . PLEASE REPLY

23. Abdullah Khan says:

what about to charge 4 N0. 150 AH batteries ?

24. wes says:

English Title……….

25. Time is money says:

mam i have microtek eb 900 can i use 200 ah battery.

26. Anshu Kumar says:

Mujhe falcon + inverter kha milega aur kitne me

27. bibhu barik says:

Sir 200ah battery or 1650ah inverter thik rahega ya nanhi plz sir reply dijiy..

28. exotic india says:

What's the difference between as 12v and 24v inverter ???

How we will find current of a load of off grid solar system..will it
P/220 or P/12 ??? 12 is battery voltage and 220 is inverter output voltage ..

30. Rahul Kumar DAS says:

120 ah battery ko 5amp se change kare to kya hoga ya kitana bhi…. Ampar ka battery ko 5ampar secharj kare ta kya hoga

31. surender coolings says:

मेरे पास 800 va का इनवर्टर है 200ahकी बैटरी लगा सकते हैं

32. Prakash Creation says:

electronics se chalta hai ya only solar me

33. Prakash Creation says:

electric se chalta hai ya only solar se.

34. Prakash Creation says:

35. Daily Learner says:

English subtitles plz

36. daniel cruz says:

Plz tell me how much max. load i can put on it at a time..

37. chuchu maa says:

Will the backup time be same for Su-kam 650VA and 1000VA using 100Ah with same load?

I have bought 3 Nos of Su-kam Shiny 650VA sinewave inverters and has been using it for years been using 100VA batteries.

38. Mani Sivamani says:

Can I run 120 ah battery for 400 va sukam inverter