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texman
Senior Member
Joined: 24 Jul 2014
Location: TeXas
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Posts: 446
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Topic: electrical Inverters for the Pod Posted: 02 Mar 2017 at 8:47am |
What size is adequate to run the TV, CPAP, computers, fan, etc. probably not all at once, but this is camping. The TV is around 25watts, CPAP (not sure, not mine), Computer 60-70watts, fan 80watts. What am i missing? If i am right, just add the loads, right? so a 500watt inverter would do it no problem. So double it to be safe and get a 1000 watt? What have you experienced with your battery life and using inverters. i have two CG 6volt batteries, 220 amp hours.
Another question about solar. I have a Zamp 80 with a 10amp controller. Could i add another 80 watt panel and use the same controller? the zamp max is about 4.5 amps so that would be 9 amps to a 10 amp controller. Will that work?
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furpod
Moderator Group - pHp
Joined: 25 Jul 2011
Location: Central KY
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Posts: 6128
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Posted: 02 Mar 2017 at 9:25am |
1) I would recommend the SMALLEST inverter you can wire up, not the largest. Anything much over 400 watts begins to have other issues. Your FLA batteries are not going to be happy with the discharge rate needed, and inverter/battery efficiency gets worse and worse the higher the draw rate. Consider using 12v native appliances when ever possible.
2) yes, you can add another 80 watt panel.
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Leo B
podders Helping podders - pHp
Joined: 13 Jan 2012
Location: Lyndonville, VT
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Posted: 02 Mar 2017 at 9:27am |
The cpap does draw a lot especially if you use the humidifier
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Leo & Melissa Bachand
2017 Ford F150
2021 Vista Cruiser 19 csk
Previously owned
2015 Rpod 179
2010 Rpod 171
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TheBum
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Joined: 26 Feb 2016
Location: Texas
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Posted: 02 Mar 2017 at 1:44pm |
Originally posted by Leo B
The cpap does draw a lot especially if you use the humidifier
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The power supply on my CPAP is rated at 65W.
A 400W inverter will pull about 30A from your battery when fully loaded down.
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texman
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Joined: 24 Jul 2014
Location: TeXas
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Posted: 02 Mar 2017 at 1:50pm |
i think a 2-300 watt is plenty then. do the fans that are cooling the inverter draw much when the inverters are running? i think you just plug them in as needed based on the feedback. i thought about hardwiring one, but seem like overkill for 300 watts.
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