Hooking up an inverter

[HAnderson]

Use red tops and you can mount them up side down any where you went. H Anderson

 

[BK]

"you don't want to pull more than ~200 watts while plugged in through the cig lighter"

So true, forgot to mention that.



My older IBM is a hog, it draws about 70watts. Had a universal 60was dc-dc supply that just couldn't power it. The supply that comes with it is rated at 100watts.



You run a fridge all night long and have a tv running and an xbox going all night long (for 8-12 hours) on just the two front batteries? And there's enough energy left in the batteries to start the truck?



How much current does your fridge draw?

Xbox and TV, figure 5Amps total?

I've not gone through the math, guess it's time to.

Each battery is probably a 55ah battery C/20 rate.

so 110ah total @ c/20 rate. . 5. 5Amps for 20hours. . and the batteries will be considered discharged and basic buckets of water. Discharging deeper will reduce the number cycles they can provide.



So figure, fridge is another 5amps average ( 10amp peak, 50% duty cycle ? assume?)



So it seems 10 hours straight with what you have should leave the batteries in a discharged state.

It seems you just make it if my assumptions are close.



And that Ed can go for a good long time without running his truck.

 

[AMink]

now have a 1500W under the passenger seat

Jeepdude, does the invertor get too hot under the seat? Did you remove carpet or put down any barrier? Still haven't hooked mine up, looking for the perfect spot!

 

[tazzen]

thanks for the responces guys.



i just was not sure. because i had a 75 watt inverter that would over load? kick out? and i bought that one when i bought the laptop. they said at best buy thats what i needed. ya right! after reading and going threw the book that came with my Toshiba laptop it said i needed a 90 watt inveter. oh yea i have added the red tops to my truck this winter. boy like night and day starting the truck after the the new red tops. good money spent jmo



ed