I purchased this 2000 watt Pure Sine invert-er from Invertersrus, $279.00. I sleep with a CPAC breathing machine, and did not want to run my generator all night. My 2 12 volt batteries read 12.7 volts. I ran my satellite dish with TV for 6 hours and my CPAC machine for 8 hours. When i got up i rechecked the voltage of my batteries and they read 11.9 volts. did not even loose a full volt in that period. The next day while traveling I put a 3 lb chuck roast in my crock pot with carrots, potatoes, 3-1/4ed onions, water an 2 packs of Lipton onion soup and plugged it into the invert-er. 4 hours later we stopped at a Kmart. When I walked out of Kmart and would not have had to see my Motor home. I could smell my way back to it. Boiled off baby backs while driving and put them on the grill one evening.Your meal is being made while your driving.I love it.

nice for the crockpotbut 11.9v is under the 50% SOC for most (if not all) RV batteriesbe sure to bring them back to full charge before starting the next nights use cycle, you can't be doing 80-90% recharges with that kind of overnight use, or your going to significantly shorten the useable lifeyou don't need 2000w for any of the listed usemy average load is less than 200wlaptop, TV, portable fans, heat pad (for my back) etc..but because i like my late night bacon snacki need a large inverter for the MWwith out the MW bacon, 400w would be more than enough

Dennis12 wrote:I purchased this 2000 watt Pure Sine invert-er from Invertersrus, $279.00. I sleep with a CPAC breathing machine, and did not want to run my generator all night. My 2 12 volt batteries read 12.7 volts. I ran my satellite dish with TV for 6 hours and my CPAC machine for 8 hours. When i got up i rechecked the voltage of my batteries and they read 11.9 volts. did not even loose a full volt in that period.That 11.9 volts says that the batteries are down to 40%, a bit lower than you should take them. Many recommend that you not go below 50% to get better battery life.

How are you planning to recharge the battery bank? Even in a motorhome, unless special efforts have been made, recharging takes an extremely long time.11.9 is too low.

I recommend adding a 3rd or 4th battery when these give out.Or if you have 24s, at least go group 27 or GC2 when you replace.Until then just enjoy the power. BTW 300 watts was probably enough.

Run your cpap on 12v, directly from battery. no additional loss converting 12v to 110, then right back to 12 for the cpap. Lots easier, and takes a lot less power.

Inverters | Good Sam Community

beemerphile1
Explorer
Jul 08, 2018
pianotuna
Nomad III
Jul 07, 2018
Dennis12,

While I'm glad it is working for you, I'd love to know the type of batteries and the number of amp-hours they store. Thanks in advance.

Dennis12 wrote:
I have done what I posted for 56 days now and have had no problem what so ever with all of the comments listed above. My batteries are 4 years old and working fine.
theoldwizard1
Explorer II
Jul 07, 2018
When your 12V batteries die (which probably will be soon if you are running them that low), buy two 6V golf cart batteries. They handle deep discharge better.

If you are going to use your crock pot while driving at least put it the sink or better in a plastic tote on the floor. You don't want any bad bumps turning diner into a multi-hour clean up !

If you are hoping to replenish your house batteries while driving, read DC-DC battery charging
Dennis12
Explorer
Jul 07, 2018
I have done what I posted for 56 days now and have had no problem what so ever with all of the comments listed above. My batteries are 4 years old and working fine.
Lwiddis
Explorer II
Jul 06, 2018
A full volt is a bunch. Enlarge your battery bank and install solar. Then you'll be set.
suprz
Explorer
Jul 06, 2018
Our RV came with a 400 watt inverter and we put a roast etc in a small crock pot and let it cook while we drive.... Works great
Johno02
Explorer
Jul 06, 2018
Run your cpap on 12v, directly from battery. no additional loss converting 12v to 110, then right back to 12 for the cpap. Lots easier, and takes a lot less power.
time2roll
Nomad
Jul 06, 2018
I recommend adding a 3rd or 4th battery when these give out.
Or if you have 24s, at least go group 27 or GC2 when you replace.
Until then just enjoy the power. BTW 300 watts was probably enough.
pianotuna
Nomad III
Jul 06, 2018
How are you planning to recharge the battery bank? Even in a motorhome, unless special efforts have been made, recharging takes an extremely long time.

11.9 is too low.
Lynnmor
Explorer
Jul 06, 2018
Dennis12 wrote:

I purchased this 2000 watt Pure Sine invert-er from Invertersrus, $279.00. I sleep with a CPAC breathing machine, and did not want to run my generator all night. My 2 12 volt batteries read 12.7 volts. I ran my satellite dish with TV for 6 hours and my CPAC machine for 8 hours. When i got up i rechecked the voltage of my batteries and they read 11.9 volts. did not even loose a full volt in that period.

That 11.9 volts says that the batteries are down to 40%, a bit lower than you should take them. Many recommend that you not go below 50% to get better battery life.

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