Useful Tables


These are Basic Typical Figures. 
Your own Appliances and Battery Requirements May vary from these guidelinens depending on your specific equipment. 

Table of Various Common Appliance Watts Requirement


Typical Power Consumption
Average Low Average High




Average Stereo
200 450




Table Fan
200 350




TV – VCR
200 350




Small Refrigerator
300 500




Large Refrigerator
950 1250




Hand Drill 1/2” Chuck
550 650




Incandescent Light 100W
100 100




CFL Light 60w Equivalent
14 14




CFL Light 100w Equivalent
23 23




LED Light 60 w Equivalent
13 15




LED Light 75 w Equivalent
14.5 19




Average Microwave
1150 1250




Large Microwave
1200 1500




Small A/C – 5000 BTU
700 1250




A/C – 12000 BTU
2800 3800




A/C – 18000 BTU
4200 5500




Computer Tower
250 400




Lap Top
60 75




Phone Charger
5 9




Hair Dryer
950 1250




Coffee Maker
1200 1500




Blender
400 450




Washing Machine
1200 1300




Clothes Dryer
5600 6500




Electric Hot Water
3500 4500




Oil Fired Furnace
800 950




Gas Furnace
200 400




Small Pellet Stove
275 550


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Battery Current Draw Time Tables






@ 12V DC 50 A/h Battery 100 A/h Batt




Power Usage Current Operating Time




100 watt 9 Amps 5.5 hours 11 hours




200 watt 19 Amps 2.6 hours 5.2 hours




500 watt 47 Amps 1.0 hour 2 hours




1000 watts 84 Amps ½ hour 1 hour

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*  Use these figures and tables as only a basic guide line in figuring aproximate system size.
Only use these table and figures at your own risk and do your own due dilligence before completing your system design.

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