Typical battery draw of common appliances – Xantrex Technology RV2012 User Manual
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Xantrex RV Series Inverter/Charger Owner’s Manual
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Typical Battery Draw of Common Appliances
TIME IN MINUTES
APPLIANCE
WATTS
5
15
30
60
120
240
Single PL Light
10
.1
.3
.7
1.3
2.7
5.3
B & W TV
50
.4
1
2
4
8
17
Computer
100
1
2
4
8
17
34
Color TV
200
2
4
8
17
34
67
Blender
400
3
8
17
34
67
133
Skil Saw
800
6
17
34
67
133
266
Toaster
1000
8
23
46
93
185
370
Microwave
1200
10
28
57
114
227
455
Hot Plate
1800
15
44
88
176
353
706
AMP HOURS
If the current draw at 120 VAC is known, then the battery amperage at 12 VDC will be 10 times
the AC amperage divided by the efficiency (90% in this table).
Motors are normally marked with their running rather than their starting current. Starting current
can be five times running current.
Refrigerators and ice makers typically run about one-third of the time. Therefore, their average
battery current draw is 1/3 of what their amp rating would indicate.