Frequently Asked Questions

Glossary Of Useful Terms

Solar FAQ'S

Discover FAQ'S

General FAQ'S

Glossary Of Terms

Active Material

Ampere-hour

Available Capacity

Capacity

Capacity Recovery

Cell

Charge

Charge Efficiency

Constant Voltage Charge

Constant Current Charge

Cut-off Voltage

Cycle

Cycle Life

Cycle Use

Deep Discharge

Depth of Discharge

Discharge

Discharge Rate

Discharge Voltage

Electrode

Electrolyte

Float

Gelled Electrolyte

High-rate Charge/Discharge

Internal Impedance/Resistance

Internal Short Circuit

Life Expectancy

Load

Maintenance-Free

Nominal Voltage

Open-Circuit Voltage

Overcharge

Overcharge Current

Quick Rechargeability

Rated Capacity

Refresh Charge

Secondary Battery

Self-Discharge

Separator

Shelf Life

Stand-by Use

UPS

Undercharging

Valve-regulated (Cell or Battery)

Vent

VRLA

Car battery

CCA

Discover FAQ'S

Can I use any charger on Discover batteries?

Can I charge my discover battery with a vehicle alternator?

Can a discover battery start my vehicle?

What are the advantages of Discover Batteries versus other batteries?

What defines a Deep Cycle Battery?

What are the advantages of Discover Batteries versus other batteries?

Can Discover Batteries safely be used inverted or on their side?

Solar FAQ'S

What is the Homaya Solar Hybrid System?

How can the system size be calculated from the requirements of the customer?

A: For System Sizing, steps are:

Choosing the HUPS

- Calculate total load to be powered in watts. Multiply it by 1.67 to get effective load in VA.

- Choose inverter size slightly greater than effective load in VA.

Choosing the battery size

- Decide how many hours of backup do you want the system to provide.

- Select battery voltage suitable for selected inverter. 12V and 24V for Homaya 850 and 1500 respectively.

- Size of battery pack = (Total Watt load * Hours of backup required *1.9) / (Voltage of battery system) in Ah. · Add batteries in parallel to add Ah, add batteries in series to add voltage.

- Only batteries of similar voltages can be added in parallel.

Choosing the solar panel

- Voltage of panel is decided by the selected inverter. 12V and 24V for Homaya 850 and 1500 respectively.

- Size of solar panel = (Total Watt load * Hours of backup required) / 3

Example:

Sizing requirement

*S.No<o :p></o>*	*Equipment <o :p></o>*	*Power Rating<o :p></o>* *(Watts)<o :p></o>*	*Nos.<o :p></o>*	*Load<o :p></o>*	*Duty Cycle (Hours)<o :p></o>*	*Daily Energy<o :p></o>* *Consumption (Watt<o :p></o>* *Hours)<o :p></o>*
1.<o :p></o>	Fan<o :p></o>	60<o :p></o>	4<o :p></o>	240<o :p></o>	2<o :p></o>	480<o :p></o>
2.<o :p></o>	LED Light<o :p></o>	10<o :p></o>	3<o :p></o>	30<o :p></o>	2<o :p></o>	60<o :p></o>
3.<o :p></o>	Tubelight<o :p></o>	40<o :p></o>	3<o :p></o>	120<o :p></o>	2<o :p></o>	240<o :p></o>
4.<o :p></o>	TV<o :p></o>	100<o :p></o>	1<o :p></o>	100<o :p></o>	2<o :p></o>	200<o :p></o>
*Total Load (Watts)<o :p></o>*				*490<o :p></o>*	*Daily Energy<o :p></o>* *Consumption (Watt<o :p></o>* *Hours)<o :p></o>*	*980<o :p></o>*

UPS Sizing:

In the above example we are getting Sum of Loads = 490 watts Therefore UPS VA rating

= 490 x 1.67 = 816.7 VA Therefore take 850 VA UPS which is close to the above calculated no.

Note: Homaya 850 VA solar SHyS supports Battery Voltage of 12V and 30A Current rating.

Battery Sizing:

As the selected UPS supports 1 no. of 12V battery, hence use one 12V battery with this UPS. Battery Ah = (Total daily Watt-hours*1.9)/(12*Number of batteries)

= (980*1.9)/12*1 = 155 AH. Hence choose a 150 Ah solar battery.

Panel Sizing for powering the load:

Panel size = Daily Energy Consumption in Watt -Hours/3 = 980/3 = 326.7 W. Since UPS supports 12V system, we need 12V panels say 100Wp or 150Wp. Hence install 3 x 100Wp panels in parallel or 2 x 150Wp panels in parallel.

What is the maximum solar panel wattage that can be connected to the SHyS?

What happens if more solar panel is connected to the SHyS that the mentioned size?

What are the recommended battery sizes for the Homaya Solar Hybrid System?

What are the safety protections available with the Homaya Solar Hybrid System?

What are the safety features associated with the AC resettable fuse?

What is the purpose of the DC fuse provided inside the Homaya Hybrid system?

What is the overload handling capability of the Homaya Solar Hybrid System?

What is the power factor of both the Solar Hybrid System?

What is the IP rating of the Solar Hybrid System? Can it be used in the outdoor? condition?

Can the Homaya SHyS charge only the lead acid batteries?

What is the DC current available with the Homaya SHyS 850VA & 1500VA model?

What happens if one connects a 12V battery to the 1500VA model?

What happens if one connects a 24V battery to the 850VA model?

Can the product be used in small ships & coastal area? Is there any chance of corrosion?

What is the warranty of the product provided?

What are the necessary corrective steps to be taken for battery maintenance?

A: For battery maintenance, the following are recommended:

Battery placement: Always use a well-ventilated area for UPS installation. The battery heats up during charging and operation. An airy place reduces the heating up of the battery. It also reduces the frequent water topping requirement.

Battery usage: After installation use battery on a regular basis. If the power cut does not occur, discharge the battery completely once every month and then recharge it. However, do not discharge the battery completely daily.

Water level check: Check the water level of battery every two months. Ensure that the water level is maintained between the maximum and minimum water limit. Always top up the battery with distilled water. Do not use tap water or rainwater as it contains excess minerals and impurities which affect the life and performance of the battery.

Cleanliness: Always keep the surface and sides of battery clean and dust free.

Use cotton cloth to clean these surfaces.

Protection from rusting: Keep the battery terminals corrosion free and rust free. If the terminals get corroded pour hot water + baking soda solution on the corrosive area or use a toothbrush for cleaning. This will remove the corrosion. Once the terminals become corrosion free, apply petroleum jelly or Vaseline on to the terminals, nuts and bolts to avoid future corrosion. Rusting and corrosion are very bad for battery performance. Rusting in terminals reduces the current flow to and from the battery. This restricted flow of current results in slow battery charging which ultimately reduces battery life.

Open vents: Be careful that the vents around battery are dust free and open. Blocked vents lead to hydrogen gas accumulation which may lead to bursting of battery.

Safe installation: From safety point of view, install the UPS at safe places in your home which is out of the reach of children or a less used area. But at the same time make sure that it is airy and properly ventilated.

Battery replacement: Replace your battery if it is dead or damaged. Regular inspection will keep you updated on your inverter and battery conditions.

What if solar panel polarities are reversed?

How to reset AC fuse?

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1. Can I leave the charger connected to the battery for a long time?

2. What charger is suitable for my vehicle?

3. Can I charge my vehicle through the 12 V (cig) socket?

4. Can I use a smaller or bigger charger than recommended for my battery?

5. The CTEK manual says: ”Connect the black clamp to the vehicle chassis remote from the fuel pipe and the battery". In the picture next to this, the black clamp is connected to the battery's negative pole. Which is correct?

6. Can I charge the battery without removing it from the vehicle, or opening the caps?

7. My charger never goes further than the float (first green) level.

8. My charger gets very warm – is this normal?

9. My charger will not start charging – is it broken?

10. Can I charge Lithium batteries with a regular CTEK charger and ordinary batteries with a Lithium charger?

General FAQ'S

Do my batteries have to be stored on a wooden pallet?

Can I use the same charger on a car battery, motorcycle battery and a sealed AGM battery?

My battery will not accept a charge?

Can I leave the charger permanently connected to a battery which has a continuous load (E.G. Standby radio, electric fence)

What is the correct charging voltage?

My battery keeps going flat and will not hold a charge?

Can I use any battery in any application?

Can any battery be used in solar applications?

How long will my battery last?

Should batteries be “used” discharged fully and then recharged to overcome the “memory effect”?

I have not used my battery for two years and now it will not work anymore?

I only have a little LED light on my battery and the run time is getting less and less?

Can I tap one battery for my two-way radio, cell phone charger or TV on my 24-volt system?

My battery has a dead cell as the voltage is only 8 volts?

My battery is 12 volts but has no power?

My battery is 13.2 volts and has no power?

My battery has exploded – there must have been a dead short?

I have a 24-volt Golf cart. The batteries are one year old. Can I just replace the one battery?

I have a 36-volt golf cart (6 x 6volt batteries is series). If one battery fails can juts replace the one battery?

I have a 24-volt system and one battery has failed. Can I just replace the one battery?

*Overload in %*<o :p></o>	*Homaya 850 VA*<o :p></o>	*Homaya 1500 VA<o :p></o>*
110<o :p></o>	4.5 min<o :p></o>	4.5min<o :p></o>
120<o :p></o>	1min<o :p></o>	1 min<o :p></o>
150<o :p></o>	10 s<o :p></o>	10 s<o :p></o>
200<o :p></o>	1 s<o :p></o>	1 s<o :p></o>

Frequently Asked Questions

Glossary Of Terms

Discover FAQ'S

Solar FAQ'S

Schneider FAQ'S

CTEK FAQ'S

General FAQ'S