Deep Cycle Batteries : Marine Batteries | RV Batteries | AGM Batteries

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BD Batteries - Buffalo, New York & Denver, Colorado
Buffalo Phone: 716.531.4875
Denver Phone: 303.800.4725

Lifeline Batteries, Total Power Batteries, Rock Racing Battery Line, Optima Battery Lines & Sun Xtender Batteries

Solar Battery Bank Calculator - AC

This solar battery bank calculator is designed to calculate AC loads to DC battery banks +/- a battery.
To compute DC loads to DC battery banks, click here

Calculate Grid tied solar: your solar battery backup is only for time during an outage.
Calculate Off Grid solar: your solar battery should catch 5 days solar power minimum. Power not soaked up by batteries or loads goes to ground & is unrecoverable.

To get started with the solar battery calculator, simply fill out the grey box to the left with appropriate consumption information. The solar battery calculator will compute reserve to 50% DOD, subtract for solar system inefficiencies, and solar system information and average.
Input values in this grey box and click "Calculate" to populate other values on the page.

Enter Load Voltage

Appliances, Inverters, Etc.

Enter Load Amperage

Amps of Electricity used Continuously
Measured by multimeter: Appliances, Inverters, Etc.
Quick Calculator Method: KWH per month/86400, enter 120vac in volts.

Inverter Efficiency Rating


(1ST ^^^ CALCULATE )              
6 Volt Solar Battery Results
2 Volt Solar Battery Results

Instant watt usage
amps x volts + inefficiency
watts

Hourly Amp Hours Used @ 12v
ah

Daily Amp Hours Used @ 12v
24 Hours - ah

Weekly Amp Hours Used @12v
7 days -ah

Monthly Amp Hours Used @12v
30 days - ah


AC to DC conversion is not perfectly efficient. To be safer, use the 80% (.8) efficient derate factor.

This calculator computes the number of batteries needed for any application +/- a battery. System is set to +20% (ah X 1.2) to account for wire resistance, resulting voltage loss, heat, and other DC system inefficiencies.

For Critical Applications battery sizing should be a starting point. Unusual circumstances call for an additional 100-500+ ah battery bank.

The computation does not account for losses of up to half ampacity for colder temperatures OR increased self discharge in warmer climates and on older batteries.

System does not account for amperages outside battery possible limits.

As a battery chemically transforms from fully charged to discharged, it's voltage drops from 13.5 - 10.5 volts for a 12 volt battery. As the voltage drops this affects the amount of amps required to drive a load. (Watts law: amps x volts = watts)
13.5 volts x 10.00 amps = 135 watts
10.5 volts x 12.86 amps = 135 watts
As such, this calculator is for sizing purposes only. All systems should be thoroughly tested as they are installed to insure that the battery bank is appropriate for the load on that site.

AGM Batteries are not harmed by high amperage charge and discharge so long as the input voltage is carefully regulated.
Charge 12 volt batteries at 13.2 - 14.4 volts
Charge 6 volt batteries at 6.6 - 7.2 volts
Avoid over charging and remove from charger immediately (or divert to other load - PV, renewable). Over charged batteries will have a unnaturally short lifespan. AGM batteries are not affected by higher current charging as GEL and Flooded batteries can be.

Sun Xtender 6 Volt Solar BatteriesBatteries Necessary for Reserve Power
@ 50% Depth of Discharge

Sun Xtender #PVX-1380T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-1680T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-1780T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-2080T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-2160T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-2240T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1
SunXtender 12 Volt Solar BatteriesBatteries Necessary for Reserve Power
@ 50% Depth of Discharge

Sun Xtender #PVX-340T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-420T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-490T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-560T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-690T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-840T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-1080T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-104T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-890T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-2120L
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-2580L
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-104HT
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1


Sun Xtender 2 Volt Solar BatteriesBatteries Necessary for Reserve Power
@ 50% Depth of Discharge

Sun Xtender #PVX-4140T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-5040T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-5340T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-6240T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-6480T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1

Sun Xtender #PVX-1030T
5 hour reserve = Batteries, +/- 1
12 hour reserve = Batteries, +/- 1
1 day reserve = Batteries, +/- 1
3 day reserve = Batteries, +/- 1
5 day reserve = Batteries, +/- 1
Renewable Energy
Solar Info:
Solar Production Calculator - By State
Solar Panel Need Calculator
Solar Production Maps
Solar Power Battery Sizing Calculator
How Solar Panels Make Electricity
Solar Power Parts Explained - Grid Tied Installations
Solar Power Parts Explained - Off Grid Installations
Solar System Parts
Solar Panels
Blocking Diodes
DC Connection Wire
DC / AC Grid Tie Inverters
DC Charge Controllers
Lugs, Rings, Etc
Wind Generators: Using Wind and Solar DC Generation Together
Wind Generators
Generators by Comparison
Wind Generator Towers & Parts
Wind Maps

BD Batteries - A Broomfield-Designers Company
Serving the Local Colorado Community 9-5 Mountain & Emergencies P. 303-800-4725 F. 303-600-9726
Serving the Buffalo and the Great Lakes Communities 9-5 Eastern & Emergencies P. 716-531-4875
Mailing Address: 5023 West 120th Ave. #138, Broomfield, CO 80020
OUR DENVER WAREHOUSE IS MOVING TO A NEW LOCATION AT THIS TIME.
WE WERE SCHEDULED TO REOPEN OUR BRICK AND MORTAR BATTERY WAREHOUSE
IN EARLY 2011. IN THE MEAN TIME OUR WEBSITE AND PHONES OPERATE FINE!

We do thank the public for the outreach of concern, and votes of confidence.
Do call Lorene prior to schedule used battery pickups, new battery dropoffs, etc. by appointment.

Corporate Accounts, Vendors, Installers, Electricians, and others interested in setting up an account.



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Buffalo, New York
Denver, Colorado
716-531-4875
303-800-4725

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The information contain on this deep cycle AGM batteries website is deemed reliable, but not guaranteed. Please verify specific information on marine AGM batteries, rv AGM batteries or auto AGM batteries listed here by calling us direct. We are proud to offer the highest quality AGM batteries and hope you will consider using our deep cycle AGM batteries in the near future!