I bought a Wagan Pure Sine Wave inverter 200 watt continious. It came with a cigarette lighter plug only. It did not have enough power to run my 20 inch box fan except on low. The box fan was rated at 90 watts on high. So I returned the unit after discussing with the Wagan tech folks. So now I am wanting to try again. How big an inverter should I buy? I did try to purchase a cord that would connect directly to my battery and was told they did not make such a plug for that size unit. Guess it was too small though the wattage was nowhere close to 200. I am confused. Any thoughts?

90w at 120v = 0.8ampthats 8 amps at 12v, and does not include conversion lossthe cig plug did not have enough power capacity ?i run a box fan on high plus the PC tv etc using a 300w go power pure sine wave600w surge,assuming this was in the RV, i really doubt the aux TV 12v outlet which is connected to the wiring for the lights, has enough capacity to fully power an inverter and run your fan ?what outlet did you use ? maybe the DASH cig plug would run the inverter and fan

Are you sure it was the inverter vs the poor battery connection?Did it shut down for overload or low voltage?

The low boltage alarm began sounding. My batteries were fully charged at 12.8. Reading at the wall plug was 12 .4. I found it odd that Wagan did not sell a cord for straight battery connection. I am willing to try it again bue what size inverter is going to work?

I assume this is the inverter: http://wagan.com/wagan-tech/power-inverters/elite-200w-pro.htmlHave you found some banana plugs rated 30 amps you could put right on the battery?

If it was me, I'd cut the cigar lighter fitting off the cord and terminate the two ends with ring terminals. Those cigar lighter fittings always seem to fail, at least the cheap ones I've used. Since I found the maxi fuses to be a tolerable way of fusing, I usually just bolt a ring terminal to the fuse and put the other side of the fuse onto the battery terminal. It's a $2 fuse cost instead of a fuse holder and and a more expensive fuse. To make it tidier, I shrink wrap the fuse, occasionally.

INVERTER SELECTION HELP? | Good Sam Community

14 Replies

time2roll
Nomad
Aug 27, 2016
I assume this is the inverter: http://wagan.com/wagan-tech/power-inverters/elite-200w-pro.html

Have you found some banana plugs rated 30 amps you could put right on the battery?
Oasisbob
Explorer
Aug 27, 2016
The low boltage alarm began sounding. My batteries were fully charged at 12.8. Reading at the wall plug was 12 .4. I found it odd that Wagan did not sell a cord for straight battery connection. I am willing to try it again bue what size inverter is going to work?
time2roll
Nomad
Aug 27, 2016
Are you sure it was the inverter vs the poor battery connection?
Did it shut down for overload or low voltage?
MrWizard
Moderator
Aug 27, 2016
90w at 120v = 0.8amp
thats 8 amps at 12v, and does not include conversion loss
the cig plug did not have enough power capacity ?

i run a box fan on high plus the PC tv etc using a 300w go power pure sine wave
600w surge,

assuming this was in the RV, i really doubt the aux TV 12v outlet which is connected to the wiring for the lights, has enough capacity to fully power an inverter and run your fan ?

what outlet did you use ? maybe the DASH cig plug would run the inverter and fan

Forum Discussion

INVERTER SELECTION HELP?

14 Replies

About Technical Issues

Related Content

Inverter install

Charger selection help please

Inverter help

5th wheel hitch selection help

INVERTER - help