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FAQ

Q: Why was my payment declined:

A: There are two main reasons why a payment is declined:

1. daily spending limit on your card is not high enough for the purchase. Just call your bank and have the limit lifted for that purchase.
2. The zip code you are putting in doesn't match the zip code that the bank/card issuer has on file for the card. Double check the zip code for the card and correct it if necessary.


Do you have a system that will run my entire house?

Our systems are not nearly large enough run an entire house. A system that is large enough to run everything in your home would run about $30-40k dollars.


Our systems can run many things such as a small fridge (Full time) or a Full Sized Fridge during a black out. They can be used to power TVs, lamps, coffee makers, microwaves, radios, laptops, charge phones, etc full time to reduce your electric bill.

How long will the battery last?
The battery will last between 5-8 years depending on how deeply you discharge it on a regular basis. If you discharge it to 50% on a regular basis it will last approx 7-8 years.


Can I charge the system with power from my home ac outlet?

Yes, we have optional ac wall chargers available on our website. http://www.bepreparedsolar.com/category-s/1836.htm

Are your solar generators expandable?
Yes, you can add additional batteries and solar panels to any of our systems

How long will it take for my solar generator to arrive?
On average, it takes about 10-14 days from the time of purchase for it to arrive.Customizes systems may take up to 3 weeks.

Will my solar generator and panels work during the winter?
Yes, our solar panels work very well in every season. You just won't get as many hours of sunlight during the winter months as you would during the summer.

What is the difference between Pure Sine Wave and Modified Sine Wave?

With a Pure Sine Wave inverter, the output voltage wave form is a very steady signal wave with very low harmonic distortion and clean power, much more like utility-supplied electricity. Inductive loads and motors run faster, quieter and cooler. Modified Sine Wave inverters work well for many uses, and are the most economical. They can used for most items.


Items that normally don't work with modified sine wave inverter include:

  • Laser printers, photocopiers, magneto-optical hard drives
  • Some fluorescent lights with electronic ballasts & dim-able light controllers
  • Variable speed power tools
  • Some battery chargers for cordless tools
  • Some new furnaces and pellet stoves with microprocessor control
  • Digital clocks with radios
  • Sewing machines with speed/microprocessor control
  • X-10 home automation system
  • Medical equipment such as cpap/oxygen concentrators
For the above items you should choose a pure sine wave system



Battery AH Run Time Examples: (*Based on batteries being run to 70% discharge without being charged by panels while in use. )

100AH Battery

*18 cubic ft fridge 4.5 hours (continuous use) *see below for extending run time

Dorm Sized Fridge 3.2 cu feet: 21 -24 hours (continuous use) *see below for extending run time

20 inch TV- 4 nights @ 4.5 hours a night,

50 watts of lights- 3.5 nights @ 5 hours each night

Laptop (90 watts) - 3 days @ 3 hours each day.


200AH Battery

*18cubic ft fridge 9 hours (continuous use) *see below for extending run time

Dorm Sized Fridge 3.2 cubic feet – 2 days (continuous use) *see below for extending run time

20 inch TV - 7 nights @ 5hours a night

50 watts of lights- 6 nights @ 5 hours each night

100 watts of lights 3 nights @ 5 hour each night

laptop (90 watts)- 6 days @ 3 hours each day.


300AH Battery

*18 cubic ft fridge 14 hours (continuous use) *see below for extending run time

Dorm sized fridge 3.2 cubic feet- 3 days (continuous use) *see below for extending run time

20 inch TV - 11 nights @ 5hours a night

50 watts of lights- 9 nights @ 5 hours each night

100 watts of lights 4.5 nights @ 5 hours a night

laptop (90 watts)- 9 days @ 3 hours each day.


400AH Battery

*18 cubic ft fridge 18 hours (continuous use) *see below for extending run time

Dorm sized fridge 3.2 cubic feet- 4 days (continuous use) *see below for extending run time

20 inch TV - 15 nights @ 5hours a night

50 watts of lights- 13.5 nights @ 5 hours each night

100 watts of lights 6.75 nights @ 5hours each night

laptop (90 watts)- 12.5 days @ 3 hours each day.

*During an extended blackout we suggest keeping the fridge unplugged for the first 4 hours, then plug it in for 2 hours, unplug it for 4 hours, plug in for 2...etc until the power is restored. This strategy works well to keep food cold for a much longer time without using a ton of power. A digital outlet timer makes this method very convenient.


How do I decide which system is right for me?
If you are unsure of what system is right for you send us an email that describes what you want to run and for how many hours each day and we will get back to you with our recommendation.

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System Sizing Help


We get a lot of emails asking "what will this system run?" This article will attempt to answer several of the frequently asked questions regarding system size.

*First of all, the battery size (ah/amp hours) determines how long the system will run an item/items -Not it's wattage. A 5000 watt 100ah system means it has a 5000 Watt Peak inverter and a 100ah (amp hour battery.)

*So, a 5000 Watt 200ah system would have 2X the running time as our 100ah system, 300ah would have 3X and so on.


Q: Can I run a dorm sized fridge (4.5 cu ft) full time?

A: Yes, to run a 4.5 cu ft fridge full time we recommend the following systems:

If you live in an area that is very sunny we suggest our 3000 Watt 300ah System:
http://www.bepreparedsolar.com/5-000-Watt-Solar-Ge...

If you live in an area that gets less sun we suggest our 5000 Watt 400ah System:
http://www.bepreparedsolar.com/Solar-Generator-500...

Q: What system can run a full sized fridge full time?

A: To run a full an average 22 cu ft (energy star approved) fridge of 115v 4.5amps
full time you would need a 5000 watt 600ah system.

A full sized fridge can easily be run during a power outage with a 5000 watt 200ah system using the method below: (The larger the battery bank the longer you can run it during a blackout.) *If you have a larger fridge you would want a 5000 watt 300ah or 400ah system.

During a blackout:

Keep the fridge unplugged for the first 4-5 hours, then plug it in for 2 hours, unplug for 4 hours, plug it in for 2 and so on until the power is restored. This will keep your food cold without using a ton of power.

Q: I want to run the following items at the same time: What system should I get?

-32" Flat Screen TV with Direct TV Receiver: 4 hour
-Two lamps 25 watts each: 6 hours
- Laptop: 3 hours

A: We recommend our 5000 Watt 200Ah Pure Sine Wave System: Pure Sine Wave is best for electronic devices and TVs


Q: Do you have a system that will run my entire house?


A: No, our systems are not nearly large enough run an entire house. A whole house system with installation is about $25-35k dollars.
Our systems can run many things such as a small fridge, TVs, lamps, radios, laptop, charge phones etc.
*You can run these items full time to reduce your electric bill.

Q: How can I determine what size system I need?

A: You can use the formula below to determine the right sized system or you can email us.
When emailing Tell us what items you need/want to run and for how long?

*How many watts do you need to run total for the day?

Example: 32" TV 125 Watts X 4 Hours = 500 Watt Hours
Lamp 50 Watt X 6 Hours = 300 Watt Hours
Laptop 120 Watt X 3 Hours =360 Watt Hours

Total Watt Hours Needed: 1160 Watt Hours


To determine what size your battery bank should be: Times the number of battery amp hours by 12 Volts. This gives you the total watt hours. You don't want to discharge the battery bank by more than 60% on a regular basis so X the number of total watt hours by 60% and this gives you the usable watt hours.

Example: A Battery Bank Of 200ah X 12 Volts =2400 Total Watt hours (Remember You Don't want to discharge the batteries more than about 60% on a regular basis)

2400 Watt Hours X 60% = 1440 Usable Watt Hours. So, the answer to the above question would be:
*You need a 200ah battery bank to run those items all together.